Vajeeston Ponniah

Image of Vajeeston Ponniah
Norwegian version of this page
Phone +47 22855613
Room ØK 34
Username
Visiting address Sem Sælands vei 26 Kjemibygningen 0371 Oslo
Postal address Postboks 1126 Blindern 0318 Oslo
Other affiliations Department of Chemistry

Research Interests


The focus of my research is electronic structure calculations with special attention to the modeling of nanostructures systems and their interaction with the surfaces. In particular I am interested in modeling various properties of bulk, surfaces, nano objects of inorganic and organic molecular materials, which are potential candidates for novel and environmental-friendly technologies. My calculations are performed by means of Density Functional Theory, and I utilize several methods for the computation of different properties as well as dimension of the system (like 1D: molecules/clusters, 2D: thin films, and 3D: periodic crystals). I work in close collaboration with experimental groups both in Norway and from other countries.


At present I am working as a senior researcher in the SiALD (Novel Silicon deposition processes by ALD) project, funded by Research Council of Norway. The aim of the project is to develop cheap, scalable processes for silicon containing materials applicable in photovoltaic processes of next generation solar cells. My role on this project is to hunt for potential Si-precursor that shows positive indications for ALD reactivity and to understand/explain the mechanism behind the Si-based ALD processes.

 

Personal homepage

http://folk.uio.no/ponniahv/

 


 

Tags: SMN, Inorganic materials chemistry

Publications

  • Mayandi, Jeyanthinath; Finstad, Terje Gunnar; Dahl, Øystein; Ponniah, Vajeeston; Schrade, Matthias & Løvvik, Ole Martin [Show all 8 contributors for this article] (2022). Thin films made by reactive sputtering of high entropy alloy FeCoNiCuGe: Optical, electrical and structural properties. Thin Solid Films. ISSN 0040-6090. 744(139083). doi: 10.1016/j.tsf.2022.139083. Full text in Research Archive
  • Brennhagen, Anders; Cavallo, Carmen; Wragg, David Stephen; Ponniah, Vajeeston; Sjåstad, Anja Olafsen & Koposov, Alexey [Show all 7 contributors for this article] (2022). Operando XRD studies on Bi2MoO6 as anode material for Na-ion batteries. Nanotechnology. ISSN 0957-4484. 33(18). doi: 10.1088/1361-6528/ac4eb5. Full text in Research Archive
  • Azarov, Alexander; Bazioti, Kalliopi; Venkatachalapathy, Vishnukanthan; Ponniah, Vajeeston; Monakhov, Eduard & Kuznetsov, Andrej (2022). Disorder-Induced Ordering in Gallium Oxide Polymorphs. Physical Review Letters. ISSN 0031-9007. 128(1). doi: 10.1103/PhysRevLett.128.015704.
  • Murugesan, Kannan; Lingannan, Govindaraj; Ishigaki, Kento; Uwatoko, Yoshiya; Sekine, Chihiro & Kawamura, Yukihiro [Show all 12 contributors for this article] (2021). Pressure Dependence of Superconducting Properties, Pinning Mechanism, and Crystal Structure of the Fe0.99Mn0.01Se0.5Te0.5 Superconductor. ACS Omega. ISSN 2470-1343. 6(45), p. 30419–30431. doi: 10.1021/acsomega.1c03721. Full text in Research Archive
  • Vignesh, A.; Ponniah, Vajeeston; Pannipara, Mehboobali; Al-Sehemi, Abdullah G.; Xia, Yang & kumar, G. Gnana (2021). Bimetallic metal-organic framework derived 3D hierarchical NiO/Co3O4/C hollow microspheres on biodegradable garbage bag for sensitive, selective, and flexible enzyme-free electrochemical glucose detection. Chemical Engineering Journal. ISSN 1385-8947. 430(4). doi: 10.1016/j.cej.2021.133157.
  • Kalaiselvan, Ganesan; Govindaraj, Lingannan; Kannan, Murugesan; Christopher S., Perreault; Gopi K., Samudrala & Pankaj Kumar, Maheshwari [Show all 10 contributors for this article] (2021). Pressure‑induced structural transition and huge enhancement of superconducting properties of single‑crystal Fe0.99Ni0.01Se0.5Te0.5 unconventional superconductor . Journal of Materials Research. ISSN 0884-2914. 36, p. 1624–1636. doi: 10.1557/s43578-021-00110-y. Full text in Research Archive
  • Govindaraj, Lingannan; Boby, Joseph; Vajeeston, Ponniah; Chia Nung, Kuo; Chin Shan, Lue & Ganesan, Kalaiselvan [Show all 8 contributors for this article] (2021). Pressure-dependent modifications in the LaAuSb2 charge density wave system. Physical review B (PRB). ISSN 2469-9950. 103. doi: 10.1103/PhysRevB.103.195126. Full text in Research Archive
  • Selvapriya, R.; Sasirekha, V.; Vajeeston, Ponniah; Pearce, Joshua M. & Mayandi, J. (2021). Reaction induced multifunctional TiO2 rod/particle nanostructured materials for screen printed dye sensitized solar cells. Ceramics International. ISSN 0272-8842. 47(6), p. 8094–8104. doi: 10.1016/j.ceramint.2020.11.164.
  • Ek, Gustav; Fjellvåg, Øystein; Vajeeston, Ponniah; Armstrong, Jeff; Sahlberg, Martin & Häussermann, Ulrich (2021). Vibrational properties of High Entropy Alloy based metal hydrides probed by inelastic neutron scattering. Journal of Alloys and Compounds. ISSN 0925-8388. 877, p. 1–7. doi: 10.1016/j.jallcom.2021.160320. Full text in Research Archive
  • Eidsvåg, Håkon; Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2021). In-depth first-principle study on novel MoS2 polymorphs. RSC Advances. ISSN 2046-2069. 11(6), p. 3759–3769. doi: 10.1039/d0ra10443d. Full text in Research Archive
  • Nygård, Magnus Moe; Fjellvåg, Øystein; Sørby, Magnus Helgerud; Sakaki, Kouji; Ikeda, Kazutaka & Armstrong, Jeff [Show all 12 contributors for this article] (2021). The average and local structure of TiVCrNbDx (x = 0, 2.2, 8) from total scattering and neutron spectroscopy. Acta Materialia. ISSN 1359-6454. 205, p. 1–15. doi: 10.1016/j.actamat.2020.116496. Full text in Research Archive
  • Eidsvåg, Håkon; Bentouba, Said; Vajeeston, Ponniah; Shivatharsiny, Yohi & Velauthapillai, Dhayalan (2021). TiO2 as a Photocatalyst for Water Splitting—An Experimental and Theoretical Review. Molecules. ISSN 1420-3049. 26(6). doi: 10.3390/molecules26061687. Full text in Research Archive
  • Li, Xinyu; Bianchini, Federico; Wind, Julia; Pettersen, Christine; Vajeeston, Ponniah & Wragg, David [Show all 7 contributors for this article] (2020). Insights into Crystal Structure and Diffusion of Biphasic Na2Zn2TeO6. ACS Applied Materials & Interfaces. ISSN 1944-8244. 12(25), p. 28188–28198. doi: 10.1021/acsami.0c05863. Full text in Research Archive
  • Zacharaki, Eirini; Bremmer, Marien G.; Vajeeston, Ponniah; Kalyva, Maria Evangelou; Fjellvåg, Helmer & Kooyman, Patricia J. [Show all 7 contributors for this article] (2020). One-pot synthesis of cobalt-rhenium nanoparticles taking the unusual beta-Mn type structure. Nanoscale Advances. 2, p. 1850–1853. doi: 10.1039/d0na00097c. Full text in Research Archive
  • Mayandi, Jeyanthinath; Finstad, Terje; Venkatesan, Ragavendran; Vajeeston, Ponniah; Karazhanov, Smagul & Venkatachalapathy, Vishnukanthan (2020). Carbon-dioxide as annealing atmosphere to retain the electrical properties of indium-tin oxide. Materials Letters. ISSN 0167-577X. 276. doi: 10.1016/j.matlet.2020.128195. Full text in Research Archive
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Thorshaug, Knut; Lind, Anna Maria; Vajeeston, Ponniah & Dovgaliuk, Iurii [Show all 9 contributors for this article] (2020). Factors Determining Microporous Material Stability in Water: The Curious Case of SAPO-37. Chemistry of Materials. ISSN 0897-4756. 32(4), p. 1495–1505. doi: 10.1021/acs.chemmater.9b04510. Full text in Research Archive
  • Li, Xinyu; Bianchini, Federico; Wind, Julia; Vajeeston, Ponniah; Wragg, David & Fjellvåg, Helmer (2019). P2 Type Layered Solid-State Electrolyte Na2Zn2TeO6: Crystal Structure and Stacking Faults . Journal of the Electrochemical Society. ISSN 0013-4651. 166(15), p. A3830–A3837. doi: 10.1149/2.1231915jes.
  • Ruud, Amund; Sottmann, Jonas; Vajeeston, Ponniah & Fjellvåg, Helmer (2019). Direct observation of reversible conversion and alloying reactions in a Bi2(MoO4)3-based lithium-ion battery anode. Journal of Materials Chemistry A. ISSN 2050-7488. 7(30), p. 17906–17913. doi: 10.1039/c9ta03459e.
  • Fjellvåg, Øystein; Krzystyniak, Matthew; Vajeeston, Ponniah; Sjåstad, Anja Olafsen & Armstrong, Jeff (2019). A combined deep inelastic neutron scattering andab initiolattice dynamics study of the hydride anion dynamics and bonding in La2LiHO3 oxyhydride. Journal of Physics Communications. ISSN 2399-6528. 3(10). doi: 10.1088/2399-6528/ab4be6. Full text in Research Archive
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2019). First-Principle Calculation of High Absorption-TlGaTe2 for Photovoltaic Application. Materials. ISSN 1996-1944. 12(7). doi: 10.3390/ma12172667. Full text in Research Archive
  • Vajeeston, Ponniah; Bianchini, Federico & Fjellvåg, Helmer (2019). First-Principles Study of the Structural Stability and Dynamic Properties of Li2MSiO4 (M = Mn, Co, Ni) Polymorphs . Energies. ISSN 1996-1073. 12(224), p. 1–24. doi: 10.3390/en12020224. Full text in Research Archive
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2019). Nonhexagonal Na Sublattice Reconstruction in the Super-Ionic Conductor Na2Zn2TeO6: Insights from Ab Initio Molecular Dynamics . Journal of Physical Chemistry C. ISSN 1932-7447. 123(8), p. 4654–4663. doi: 10.1021/acs.jpcc.8b10362.
  • Fjellvåg, Øystein; Nygård, Kristin Hubred; Vajeeston, Ponniah & Sjåstad, Anja Olafsen (2019). Advances in the LiCl salt flux method and the preparation of phase pure La2−xNdxLiHO3 (0 ≤ x ≤ 2) oxyhydrides. Chemical Communications. ISSN 1359-7345. 55(26), p. 3817–3820. doi: 10.1039/c9cc00920e.
  • Yacov, Finkelstein; Raymond, Moreh; Bianchini, Federico & Vajeeston, Ponniah (2019). Anisotropy of the proton kinetic energy in ice Ih. Surface Science. ISSN 0039-6028. 679, p. 174–179. doi: 10.1016/j.susc.2018.09.010. Full text in Research Archive
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2018). A first-principles investigation of the Li difusion mechanism in the super-ionic conductor lithium orthothioborate Li3BS3 structure. Materials Letters. ISSN 0167-577X. 219, p. 186–189. doi: 10.1016/j.matlet.2018.02.083. Full text in Research Archive
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2018). Hybrid Density Functional Study of Au2Cs2I6, Ag2GeBaS4, Ag2ZnSnS4, and AgCuPO4 for the Intermediate Band Solar Cells. Energies. ISSN 1996-1073. 11(12). doi: 10.3390/en11123457. Full text in Research Archive
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan; Bianchini, Federico & Vajeeston, Ponniah (2018). Properties of novel non-silicon materials for photovoltaic applications: A first-principle insight. Materials. ISSN 1996-1944. 11:2006(10), p. 1–17. doi: 10.3390/ma11102006. Full text in Research Archive
  • Ruud, Amund; Sottmann, Jonas; Vajeeston, Ponniah & Fjellvåg, Helmer (2018). Operando Investigations of Lithiation and Delithiation Processes in the BiVO4 Anode Material . Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 47, p. 29798–29803. doi: 10.1039/c8cp05330h. Full text in Research Archive
  • Vajeeston, Ponniah (2018). Ionic conductivity enhancement by particle size reduction in Li2FeSiO4. Materials Letters. ISSN 0167-577X. 218, p. 313–316. doi: 10.1016/j.matlet.2018.02.041.
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2018). A first-principle study of NaMPO4(M = Mn, Fe, Co, Ni) possible novelstructures as cathode materials for sodium-ion batteries: Structural andelectrochemical characterisation. Materials Chemistry and Physics. ISSN 0254-0584. 219, p. 212–221. doi: 10.1016/j.matchemphys.2018.08.007. Full text in Research Archive
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2018). A promising high-efficiency photovoltaic alternative non-silicon material: A first-principle investigation. Scripta Materialia. ISSN 1359-6462. 156, p. 134–137. doi: 10.1016/j.scriptamat.2018.07.027.
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2018). A first principle comparative study of the ionic diffusivity in LiAlO2 and NaAlO2 polymorphs for solid-state battery applications. Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 20(15), p. 9824–9832. doi: 10.1039/c8cp00715b.
  • El-Kharbachi, Abdelouahab; Hu, Yang; Yoshida, Koji; Vajeeston, Ponniah; Kim, Sangryun & Sørby, Magnus Helgerud [Show all 9 contributors for this article] (2018). Lithium ionic conduction in composites of Li(BH4)0.75I0.25 and amorphous 0.75Li2S·0.25P2S5 for battery applications. Electrochimica Acta. ISSN 0013-4686. 278, p. 332–339. doi: 10.1016/j.electacta.2018.05.041. Full text in Research Archive
  • Eidsvåg, Håkon; Rasukkannu, Murugesan; Vajeeston, Ponniah & Velauthapillai, Dhayalan (2018). Bandgap engineering in CsSnxPb(1−x)I3 and their influence on light absorption. Materials Letters. ISSN 0167-577X. 218, p. 253–256. doi: 10.1016/j.matlet.2018.02.021.
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2018). A first-principle study of the electronic, mechanical and optical properties of inorganic perovskite Cs2SnI6 for intermediate-band solar cells. Materials Letters. ISSN 0167-577X. 218, p. 233–236. doi: 10.1016/j.matlet.2018.02.034.
  • Vajeeston, Ponniah; Fjellvåg, Helmer & Nilsen, Ola (2018). Search for potential precursors for Si-atomic layer deposition- a quantum chemical study. Materials Letters. ISSN 0167-577X. 216, p. 189–192. doi: 10.1016/j.matlet.2018.01.040. Full text in Research Archive
  • Fjellvåg, Øystein Slagtern; Armstrong, Jeff; Vajeeston, Ponniah & Sjåstad, Anja Olafsen (2018). New Insights into Hydride Bonding, Dynamics, and Migration in La2LiHO3 Oxyhydride. The Journal of Physical Chemistry Letters. ISSN 1948-7185. p. 353–358. doi: 10.1021/acs.jpclett.7b03098. Full text in Research Archive
  • Sottmann, Jonas; Di Michiel, Marco; Fjellvåg, Helmer; Malavasi, Lorenzo; Margadonna, Serena & Vajeeston, Ponniah [Show all 8 contributors for this article] (2017). Chemical Structures of Specific Sodium Ion Battery Components Determined by Operando Pair Distribution Function and X-ray Diffraction Computed Tomography. Angewandte Chemie International Edition. ISSN 1433-7851. 56(38), p. 11385–11389. doi: 10.1002/anie.201704271. Full text in Research Archive
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2017). First-principles study of the structural stability and electrochemical properties of Na2MSiO4 (M = Mn, Fe, Co and Ni) polymorphs. Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 19(22), p. 14462–14470. doi: 10.1039/c7cp01395g. Full text in Research Archive
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2017). First-principles study of structural stability, dynamical and mechanical properties of Li2FeSiO4 polymorphs. RSC Advances. ISSN 2046-2069. 7(27), p. 16843–16853. doi: 10.1039/c6ra26555c. Full text in Research Archive
  • Lundvall, Fredrik; Wragg, David; Vajeeston, Ponniah; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2017). Ab initio structure solution and thermal stability evaluation of a new Ca(II) 3D coordination polymer using synchrotron powder X-ray diffraction data. CrysteEngComm. ISSN 1466-8033. 19(39), p. 5857–5863. doi: 10.1039/c7ce01389b.
  • Nagell, Marius Uv; Slawinski, Wojciech Andrzej; Vajeeston, Ponniah; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2017). Temperature induced transitions in La-4(Co1-xNix)(3)O-10 (+) (delta); oxygen stoichiometry and mobility. Solid State Ionics. ISSN 0167-2738. 305, p. 7–15. doi: 10.1016/j.ssi.2017.04.006.
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2017). Computational modeling of novel bulk materials for the intermediate-band solar cells. ACS Omega. ISSN 2470-1343. 2(4), p. 1454–1462. doi: 10.1021/acsomega.6b00534. Full text in Research Archive
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Ruud, Amund; Drathen, Christina & Emerich, Hermann [Show all 8 contributors for this article] (2017). Bismuth Vanadate and Molybdate: Stable Alloying Anodes for Sodium-Ion Batteries. Chemistry of Materials. ISSN 0897-4756. 29(7), p. 2803–2810. doi: 10.1021/acs.chemmater.6b04699.
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Hu, Yang; Ruud, Amund & Drathen, Christina [Show all 9 contributors for this article] (2016). How Crystallite Size Controls the Reaction Path in Nonaqueous Metal Ion Batteries: The Example of Sodium Bismuth Alloying. Chemistry of Materials. ISSN 0897-4756. 28(8), p. 2750–2756. doi: 10.1021/acs.chemmater.6b00491.
  • Lundvall, Fredrik; Vajeeston, Ponniah; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2016). Two new series of coordination polymers and evaluation of their properties by density functional theory. Crystal Growth & Design. ISSN 1528-7483. 16(1), p. 339–346. doi: 10.1021/acs.cgd.5b01302.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Crystal structures of aluminum-based hydrides. Emerging Materials Research. ISSN 2046-0147. 4(2), p. 192–217. doi: 10.1680/emr.15.00016.
  • Sjåstad, Anja Olafsen; Andersen, Niels Højmark; Vajeeston, Ponniah; Karthikeyan, Jayakumar; Arstad, Bjørnar & Karlsson, Arne [Show all 7 contributors for this article] (2015). On the Thermal Stability and Structures of Layered Double Hydroxides Mg1-xAlx(OH)2(NO3)x·mH2O (0.18 ≤ x ≤ 0.38). European Journal of Inorganic Chemistry (EurJIC). ISSN 1434-1948. 2015(10), p. 1775–1788. doi: 10.1002/ejic.201403232.
  • Iozzi, Maria Francesca; Vajeeston, Ponniah; Vidya, R.; Ravindran, Ponniah & Fjellvåg, Helmer (2015). Structural and electronic properties of transparent conducting delafossite: a comparison between the AgBO2 and CuBO2 families (B = Al, Ga, In and Sc, Y). RSC Advances. ISSN 2046-2069. 5(2), p. 1366–1377. doi: 10.1039/c3ra47531j.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2014). Revised electronic structure, Raman and IR studies of AB(2)H(2) and ABCH (A = Sr, Ba; B = Al, Ga; C = Si, Ge) phases. RSC Advances. ISSN 2046-2069. 4(1), p. 22–31. doi: 10.1039/c3ra44248a.
  • Yang, Li-Ming; Ravindran, Ponniah; Vajeeston, Ponniah; Svelle, Stian & Tilset, Mats (2013). A quantum mechanically guided view of Cd-MOF-5 from formation energy, chemical bonding, electronic structure, and optical properties. Microporous and Mesoporous Materials. ISSN 1387-1811. 175, p. 50–58. doi: 10.1016/j.micromeso.2013.03.020.
  • Vajeeston, Ponniah; Sartori, Sabrina; Ravindran, Ponniah; Knudsen, Kenneth; Hauback, Bjørn & Fjellvåg, Helmer (2012). MgH2 in Carbon Scaffolds: A Combined Experimental and Theoretical Investigation. Journal of Physical Chemistry C. ISSN 1932-7447. 116(40), p. 21139–21147. doi: 10.1021/jp3008199.
  • Vajeeston, Ponniah; Ravindran, P; Fichtner, M. & Fjellvåg, Helmer (2012). Influence of Crystal Structure of Bulk Phase on the Stability of Nanoscale Phases: Investigation on MgH2 Derived Nanostructures. Journal of Physical Chemistry C. ISSN 1932-7447. 116(35), p. 18965–18972. doi: 10.1021/jp305933g.
  • Yang, Li-Ming; Ravindran, Ponniah; Vajeeston, Ponniah & Tilset, Mats (2012). Formation of an intermediate band in isoreticular metal-organic framework-993 (IRMOF-993) and metal-substituted analogues M-IRMOF-993. Journal of Materials Chemistry. ISSN 0959-9428. 22(32), p. 16324–16335. doi: 10.1039/c2jm31360j.
  • Østreng, Erik; Vajeeston, Ponniah; Nilsen, Ola & Fjellvåg, Helmer (2012). Atomic layer deposition of lithium nitride and carbonate using lithium silylamide. RSC Advances. ISSN 2046-2069. 2(15), p. 6315–6322. doi: 10.1039/c2ra20731a.
  • Yang, Li-Ming; Ravindran, Ponniah; Vajeeston, Ponniah & Tilset, Mats (2012). Properties of IRMOF-14 and its analogues M-IRMOF-14 (M = Cd, alkaline earth metals): electronic structure, structural stability, chemical bonding, and optical properties. Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 14(14), p. 4713–4723. doi: 10.1039/c2cp24091b.
  • Yang, Li-Ming; Ravindran, Ponniah; Vajeeston, Ponniah & Tilset, Mats (2012). Ab initio investigations on the crystal structure, formation enthalpy, electronic structure, chemical bonding, and optical properties of experimentally synthesized isoreticular metal-organic framework-10 and its analogues: M-IRMOF-10 (M = Zn, Cd, Be, Mg, Ca, Sr and Ba). RSC Advances. ISSN 2046-2069. 2(4), p. 1618–1631. doi: 10.1039/c1ra00187f.
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2012). Prediction of structural, lattice dynamical, and mechanical properties of CaB2. RSC Advances. ISSN 2046-2069. 2(31), p. 11687–11694. doi: 10.1039/c2ra21807k.
  • Frommen, Christoph; Sørby, Magnus Helgerud; Ravindran, Ponniah; Vajeeston, Ponniah; Fjellvåg, Helmer & Hauback, Bjørn (2011). Synthesis, crystal structure, and thermal properties of the first mixed-metal and anion-substituted rare earth borohydride LiCe(BH4)3Cl. Journal of Physical Chemistry C. ISSN 1932-7447. 115(47), p. 23591–23602. doi: 10.1021/jp205105j. Full text in Research Archive
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2011). Stability enhancement by particle size reduction in AlH3. Journal of Alloys and Compounds. ISSN 0925-8388. 509, p. S662–S666. doi: 10.1016/j.jallcom.2010.11.110.
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2011). Phonon, IR, and Raman Spectra, NMR Parameters, and Elastic Constant Calculations for AlH3 Polymorphs. Journal of Physical Chemistry A. ISSN 1089-5639. 115(39), p. 10708–10719. doi: 10.1021/jp2011342.
  • Riktor, Marit Dalseth; Filinchuk, Yaroslav; Vajeeston, Ponniah; Bardaji, E.G.; Fichtner, M. & Fjellvåg, Helmer [Show all 8 contributors for this article] (2011). The crystal structure of the first borohydride borate, Ca-3(BD4)(3)(BO3). Journal of Materials Chemistry. ISSN 0959-9428. 21(20), p. 7188–7193. doi: 10.1039/c1jm00074h.

View all works in Cristin

  • Brennhagen, Anders; Cavallo, Carmen; Wragg, David Stephen; Koposov, Alexey; Ponniah, Vajeeston & Sjåstad, Anja Olafsen [Show all 7 contributors for this article] (2021). Operando XRD study on Bi2MoO6 as anode material for Na-ion batteries.
  • Kanimozhi, Balakrishnan; Velauthapillai, Vasu & Ponniah, Vajeeston (2021). Physical and chemical properties of some newly identified polymorphs of SnO2: Density functional theory.
  • Lathifa, Banu; Vasu, Veerapandi & Ponniah, Vajeeston (2021). First-principles insights into the relative stability, physical and chemical properties of MoSe2 .
  • Chapa, Pamodani Wanniarachchi; Arunasalam, Thevakaran; Punniamoorthy, Ravirajan; Dhayalan, Velauthapillai & Ponniah, Vajeeston (2021). Mixed Anion Perovskites for photovoltaic applications – a first-principle study.
  • Suresh, A.; Kanimozhi, Balakrishnan; Vasu, Veerapandi & Ponniah, Vajeeston (2021). Tailoring physical properties by introducing alkali metals with di-sulphide anion for technological applications: A DFT study. .
  • Håkon, Eidsvåg; Murugesan, Rasukkannu; Dhayalan, Velauthapillai & Ponniah, Vajeeston (2021). In-depth first-principle study on novel MoS2 polymorphs .
  • Murugesan, Rasukkannu; Dhayalan, Velauthapillai & Ponniah, Vajeeston (2021). Properties of Natural Intermediate band in Cu2CdGeS4 for Intermediate band solar cells: A First-Principle Insight .
  • Brennhagen, Anders; Cavallo, Carmen; Wragg, David Stephen; Sjåstad, Anja Olafsen; Ponniah, Vajeeston & Fjellvåg, Helmer (2021). Operando XRD studies on Bi2MoO6 as anode material for Na-ion batteries.
  • Eidsvåg, Håkon; Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2021). Correction: In-depth first-principle study on novel MoS2polymorphs. RSC Advances. ISSN 2046-2069. 11(20), p. 12188–12188. doi: 10.1039/d1ra90092g.
  • Brennhagen, Anders; Cavallo, Carmen; Wragg, David; Vajeeston, Ponniah; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2021). Bi4V2O11/RGO composite as conversion and alloying anode for Na-ion batteries.
  • Brennhagen, Anders; Wragg, David; Fjellvåg, Helmer; Vajeeston, Ponniah; Sjåstad, Anja Olafsen & Cavallo, Carmen (2021). Beyond Insertion: Conversion alloying Bi/RGO-based materials as novel anodes for Na-ion batteries.
  • Vajeeston, Ponniah (2020). Computational materials design and characterization of battery materials.
  • Vajeeston, Ponniah (2020). High-throughput computational materials design and characterisation for functional inorganic materials.
  • Rasukkannu, Murugesan; Dhayalan, Velauthapillai & Vajeeston, Ponniah (2020). Properties of Natural Intermediate band in Cu2CdGeS4 for Intermediate band solar cells: A First-Principle Insight.
  • Fjellvåg, Øystein; Armstrong, J; Krzystyniak, Matthew; Vajeeston, Ponniah & Sjåstad, Anja Olafsen (2020). Structure and dynamics of La2LiHO3.
  • Wragg, David; Fjellvåg, Øystein; Ruud, Amund; Fjellvåg, Helmer; Vajeeston, Ponniah & Vaughan, Gavin B M [Show all 9 contributors for this article] (2019). XRD/PDF computed tomography and how to get the best possible operando data from ion batteries.
  • Wragg, David; Ruud, Amund; Fjellvåg, Øystein; Fjellvåg, Helmer; lebedev, Oleg & Di Michel, Marco [Show all 9 contributors for this article] (2019). PDF Analysis of Batteries Using Diffraction Computed Tomography.
  • Wragg, David; Ruud, Amund; Fjellvåg, Helmer; Fjellvåg, Øystein; Vajeeston, Ponniah & Sottmann, Jonas [Show all 9 contributors for this article] (2019). PDF Analysis of Batteries Using Diffraction Computed Tomography.
  • Wragg, David; Sottmann, Jonas; Ruud, Amund; Fjellvåg, Helmer; Fjellvåg, Øystein & Vajeeston, Ponniah [Show all 9 contributors for this article] (2018). Operando X-ray Diffraction Studies of Battery Materials.
  • Wragg, David; Ruud, Amund; Sottmann, Jonas; Vajeeston, Ponniah; Fjellvåg, Helmer & Fjellvåg, Øystein [Show all 8 contributors for this article] (2018). New Anodes for Sodium and Lithium Ion Batteries.
  • El-Kharbachi, Abdelouahab; Høgset, A.; Kim, Sangryun; Vajeeston, Ponniah; Sørby, Magnus Helgerud & Fjellvåg, Helmer [Show all 8 contributors for this article] (2018). Structural and Electrochemical Study of Mixtures of Halogenated-LiBH4 and Amorphous 0.75Li2S·0.25P2S5 for Li- Conducting Solid Electrolytes.
  • Venkatachalapathy, Vishnukanthan; Vajeeston, Ponniah; Galeckas, Augustinas; Vines, Lasse & Kuznetsov, Andrej (2018). Direct and indirect bandgaps of Cadmium Oxide.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2017). Computational materials design and characterisation for energy harvesting and energy storage materials.
  • Vajeeston, Ponniah (2017). Computational materials design for energy harvesting and energy storage materials.
  • Venkatachalapathy, Vishnukanthan; Vajeeston, Ponniah; Vines, Lasse; Monakhov, Edouard & Kuznetsov, Andrej (2017). Ion irradiation induced phase transformation in crystalline Si.
  • Venkatachalapathy, Vishnukanthan; Ayedh, Hussein Mohammed Hussein; Vajeeston, Ponniah; Vines, Lasse; Monakhov, Edouard & Kuznetsov, Andrej (2017). Quest for Si based multi-junction solar cells covering the entire solar spectrum.
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah & Ruud, Amund (2017). The intriguing mechanism of phosphorus anodes for sodium ion batteries Revealed by operando pair distribution function and X-ray diffraction computed tomography.
  • Hu, Yang; El-Kharbachi, Abdelouahab; Yoshida, Koji; Vajeeston, Ponniah; Sørby, Magnus Helgerud & Orimo, Shin-Ichi [Show all 8 contributors for this article] (2017). Ionic Properties of the borohydride-sulfide Mixed System for All-Solid Li-Ion Batteries.
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah; Sørby, Magnus Helgerud & Fjellvåg, Helmer (2016). Does the 3D Topological Dirac Semimetal Na3P Have More Than One Ground State?
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah; Emerich, Hermann; Fjellvåg, Helmer & Hermann, Matthias [Show all 9 contributors for this article] (2016). Size Matters: How crystallite size controls reaction path in the sodium bismuth anode system.
  • Rasakkannu, Muregesan; Vajeeston, Ponniah & Velauthapillai, Dhayalan (2015). Computational Modeling of New bulk materials for the Intermediate Band Solar cells.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Particle size reduction enhance the conductivity in Li2FeSiO4 .
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). High-throughput computational materials design and characterisation for functional inorganic materials .
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Computational materials design and characterisation for energy harvesting and energy storage materials.
  • Vajeeston, Ponniah (2014). First-principles study of structural stability, dynamical and Mechanical properties of Li2FeSiO4 polymorphs .
  • Vajeeston, Ponniah (2013). Search for potential precursors for Si/SiO2-atomic layer deposition - a quantum chemical study.
  • Vajeeston, Ponniah (2013). Computational Studies of Materials for Hydrogen Storage in the Bulk and Nano phases.
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2012). Reply to "A comment on 'Prediction of crystal structure, lattice dynamical, and mechanical properties of CaB2H2' by Vajeeston et al., Int J Hydrogen Energy, 36 (2011) 10149-10158" Discussion. International Journal of Hydrogen Energy. ISSN 0360-3199. 37(3), p. 2711–2712. doi: 10.1016/j.ijhydene.2011.10.097.

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Published Nov. 11, 2010 9:00 AM - Last modified Oct. 30, 2012 11:56 AM