Ponniah Vajeeston

Image of Ponniah Vajeeston
Norwegian version of this page
Phone +47-22855613
Mobile phone +47-45270694
Room ØK 34
Username
Visiting address Sem Sælands vei 26 Kjemibygningen 0371 OSLO
Postal address Postboks 1126 Blindern 0318 OSLO

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: Inorganic materials chemistry, SMN

Publications

  • 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), s 5857- 5863 . doi: 10.1039/c7ce01389b Show summary
  • 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, s 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, s 1454- 1462
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Ruud, Amund; Drathen, Christina; Emerich, Hermann; Wragg, David & Fjellvåg, Helmer (2017). Bismuth vanadate and molybdate: Stable alloying anodes for sodium-ion batteries. Chemistry of Materials.  ISSN 0897-4756. . doi: 10.1021/acs.chemmater.6b04699
  • 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), s 339- 346 . doi: 10.1021/acs.cgd.5b01302
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Hu, Yang; Ruud, Amund; Drathen, Christina; Emerich, Hermann; Fjellvåg, Helmer & Wragg, David (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), s 2750- 2756 . doi: 10.1021/acs.chemmater.6b00491
  • 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), s 1366- 1377 . doi: 10.1039/c3ra47531j
  • Sjåstad, Anja Olafsen; Andersen, Niels Højmark; Vajeeston, Ponniah; Karthikeyan, Jayakumar; Arstad, Bjørnar; Karlsson, Arne & Fjellvåg, Helmer (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.  ISSN 1434-1948.  2015(10), s 1775- 1788 . doi: 10.1002/ejic.201403232 Show summary
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Crystal structures of aluminum-based hydrides. Emerging Materials Research.  ISSN 2046-0147.  4(2), s 192- 217 . doi: 10.1680/emr.15.00016
  • 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), s 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, s 50- 58 . doi: 10.1016/j.micromeso.2013.03.020
  • 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), s 18965- 18972 . doi: 10.1021/jp305933g
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2012). Prediction of structural, lattice dynamical, and mechanical properties of CaB2. RSC Advances.  ISSN 2046-2069.  2(31), s 11687- 11694 . doi: 10.1039/c2ra21807k
  • 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), s 21139- 21147 . doi: 10.1021/jp3008199
  • 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), s 1618- 1631 . doi: 10.1039/c1ra00187f
  • 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), s 16324- 16335 . doi: 10.1039/c2jm31360j
  • 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), s 4713- 4723 . doi: 10.1039/c2cp24091b
  • 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), s 6315- 6322 . doi: 10.1039/c2ra20731a
  • 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), s 23591- 23602 . doi: 10.1021/jp205105j Full text in Research Archive.
  • Riktor, Marit Dalseth; Filinchuk, Yaroslav; Vajeeston, Ponniah; Bardaji, E.G.; Fichtner, M.; Fjellvåg, Helmer; Sørby, Magnus Helgerud & Hauback, Bjørn (2011). The crystal structure of the first borohydride borate, Ca-3(BD4)(3)(BO3). Journal of Materials Chemistry.  ISSN 0959-9428.  21(20), s 7188- 7193 . doi: 10.1039/c1jm00074h
  • 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), s 10708- 10719 . doi: 10.1021/jp2011342
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2011). Stability enhancement by particle size reduction in AlH3. Journal of Alloys and Compounds.  ISSN 0925-8388.  509, s S662- S666 . doi: 10.1016/j.jallcom.2010.11.110
  • Vajeeston, Ponniah; Ravindran, Ponniah; Hauback, Bjørn & Fjellvåg, Helmer (2011). Prediction of crystal structure, lattice dynamical, and mechanical properties of CaB2H2. International journal of hydrogen energy.  ISSN 0360-3199.  36(16), s 10149- 10158 . doi: 10.1016/j.ijhydene.2011.05.038
  • Vajeeston, Ponniah; Vidya, R. & Fjellvåg, Helmer (2011). Nano-Phases of NaBH4 and KBH4. Journal of Nanoscience and Nanotechnology.  ISSN 1533-4880.  11(3), s 1929- 1934 . doi: 10.1166/jnn.2011.3517
  • Yang, Li-Ming; Vajeeston, Ponniah; Ravindran, Ponniah; Fjellvåg, Helmer & Tilset, Mats (2011). Revisiting isoreticular MOFs of alkaline earth metals: a comprehensive study on phase stability, electronic structure, chemical bonding, and optical properties of A-IRMOF-1 (A = Be, Mg, Ca, Sr, Ba). Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076.  13(21), s 10191- 10203 . doi: 10.1039/c0cp02944k
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2010). Nono-structures of NaBH4 and KBH4. Journal of Nanoscience and Nanotechnology.  ISSN 1533-4880.  11(3), s 2296- 2318 . doi: 10.1166/jnn.2010.3517
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2010). Structural investigation and thermodynamical properties of alkali calcium trihydrides. Journal of Chemical Physics.  ISSN 0021-9606.  132(11) . doi: 10.1063/1.3299732
  • Yang, Li-Ming; Vajeeston, Ponniah; Ravindran, Ponniah; Fjellvåg, Helmer & Tilset, Mats (2010). Theoretical Investigations on the Chemical Bonding, Electronic Structure, And Optical Properties of the Metal-Organic Framework MOF-5. Inorganic Chemistry.  ISSN 0020-1669.  49(22), s 10283- 10290 . doi: 10.1021/ic100694w
  • Karazhanov, Smagul; Ravindran, Ponniah; Vajeeston, Ponniah; Ulyashin, AG; Fjellvåg, Helmer & Svensson, Bengt Gunnar (2009). Phase stability and pressure-induced structural transitions at zero temperature in ZnSiO3 and Zn2SiO4. Journal of Physics: Condensed Matter.  ISSN 0953-8984.  21(48) . doi: 10.1088/0953-8984/21/48/485801 Full text in Research Archive.
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2009). Nanostructures of LiBH4: a density-functional study. Nanotechnology.  ISSN 0957-4484.  20(27) . doi: 10.1088/0957-4484/20/27/275704
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2009). Predicting New Materials for Hydrogen Storage Application. Materials.  ISSN 1996-1944.  2, s 2296- 2318 . doi: 10.3390/ma2042296
  • Karazhanov, Smagul; Ulyashin, AG; Ravindran, Ponniah & Vajeeston, Ponniah (2008). Semiconducting hydrides. Europhysics letters.  ISSN 0295-5075.  82 . doi: 10.1209/0295-5075/82/17006
  • Karazhanov, Smagul; Ulyashin, AG; Vajeeston, Ponniah & Ravindran, Ponniah (2008). Hydrides as materials for semiconductor electronics. Philosophical Magazine.  ISSN 1478-6435.  88, s 2461- 2476 . doi: 10.1080/14786430802360362
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2008). Novel High Pressure Phases of beta-AlH3: A Density-Functional Study. Chemistry of Materials.  ISSN 0897-4756.  20(19), s 5997- 6002 . doi: 10.1021/cm800282b
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2008). Structural phase stability studies on MBeH3 (M = Li, Na, K, Rb, Cs) from density functional calculations. Inorganic Chemistry.  ISSN 0020-1669.  47 . doi: 10.1021/ic7015897 Show summary
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2008). Theoretical investigations on low energy surfaces and nanowires of MgH2. Nanotechnology.  ISSN 0957-4484.  19 . doi: 10.1088/0957-4484/19/27/275704
  • Vajeeston, Ponniah; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2008). First-principles investigations of the MMgH3 (M = Li, Na, K, Rb, Cs) series. Journal of Alloys and Compounds.  ISSN 0925-8388.  450 . doi: 10.1016/j.jallcom.2006.10.163
  • Yartys, Volodymyr; Vajeeston, Ponniah; Riabov, Alexander Bronoslavovich; Ravindran, Ponniah; Denys, Roman Volodymyrovich; Mæhlen, Jan Petter; Delaplane, Robert G. & Fjellvåg, Helmer (2008). Crystal chemistry and metal-hydrogen bonding in anisotropic and interstitial hydrides of intermetallics of rare earth (R) and transition metals (T), RT3 and R2T7. Zeitschrift fur Kristallographie.  ISSN 0044-2968.  223(10), s 674- 689 . doi: 10.1524/zkri.2008.1030
  • Karazhanov, Smagul; Ravindran, Ponniah; Vajeeston, Ponniah; Ulyashin, A; Finstad, Terje & Fjellvåg, Helmer (2007). Phase stability, electronic structure, and optical properties of indium oxide polytypes. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  76(7) . doi: 10.1103/PhysRevB.76.075129
  • Karazhanov, Smagul; Ravindran, Ponniah; Vajeeston, Ponniah & Ulyashin, AG (2007). Hydride electronics. Physica status solidi. A, Applied research.  ISSN 0031-8965.  204, s 3538- 3544
  • Klaveness, Arne; Vajeeston, Ponniah; Ravindran, Ponniah; Fjellvåg, Helmer & Kjekshus, Arne (2007). Structure and bonding in BA1H(5) (B = Be, Ca, Sr) from first-principle calculations. Journal of Alloys and Compounds.  ISSN 0925-8388.  433 . doi: 10.1016/j.jallcom.2006.06.047
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2007). A new series of high hydrogen content hydrogen-storage materials - A theoretical prediction. Journal of Alloys and Compounds.  ISSN 0925-8388.  446, s 44- 47 . doi: 10.1016/j.jallcom.2006.12.058
  • Klaveness, Arne; Vajeeston, Ponniah; Ravindran, Ponniah; Fjellvåg, Helmer; Li, Yanjun & Kjekshus, Arne (2006). Structural phase stability and bonding behavior of BAlH5 (B=Mg,Ba) from first-principles calculations. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  73
  • Ravindran, Ponniah; Vajeeston, Ponniah; Vidya, R.; Fjellvåg, Helmer & Kjekshus, A (2006). Modeling of hydrogen storage materials by density-functional calculations. Journal of Power Sources.  ISSN 0378-7753.  159, s 88- 99
  • Vajeeston, Ponniah; Ravindran, Ponniah; Hauback, BC; Fjellvåg, Helmer; Kjekshus, Arne; Furuseth, Sigrid Breien & Hanfland, M (2006). Structural stability and pressure-induced phase transitions in MgH2. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  73
  • Vajeeston, Ponniah; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2006). High hydrogen content complex hydrides: A density-functional study. Applied Physics Letters.  ISSN 0003-6951.  89
  • Vajeeston, Ponniah; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2005). Structural stability of alkali boron tetrahydrides ABH(4) (A = Li, Na, K, Rb, Cs) from first principle calculation. Journal of Alloys and Compounds.  ISSN 0925-8388.  387(1), s 97- 104 Show summary
  • Magnuson, M; Butorin, SM; Sathe, C; Nordgren, J & Ponniah, Vajeeston (2004). Spin transition in LaCoO3 investigated by resonant soft X-ray emission spectroscopy. Europhysics letters.  ISSN 0295-5075.  68, s 289- 295
  • Ponniah, Ravindran; Ponniah, Vajeeston; Fjellvåg, Helmer & Kjekshus, Arne (2004). Chemical-bonding and high-pressure studies on hydrogen-storage materials. Computational materials science.  ISSN 0927-0256.  30, s 349- 357 Show summary
  • Ponniah, Vajeeston; Ponniah, Ravindran; Fjellvåg, Helmer & Kjekshus, Arne (2004). Search for metal hydrides with short hydrogen-hydrogen separation: Ab initio calculations. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  70, s art. no.- 014107 Show summary
  • Ponniah, Vajeeston; Ponniah, Ravindran; Kjekshus, Arne & Fjellvåg, Helmer (2004). Crystal structure of KAlH4 from first principle calculations. Journal of Alloys and Compounds.  ISSN 0925-8388.  363, s L7- L11 Show summary
  • Ponniah, Vajeeston; Ponniah, Ravindran; Kjekshus, Arne & Fjellvåg, Helmer (2004). Structural stability and electronic structure for Li3AlH6. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  69, s art. no.- 020104 Show summary
  • Ponniah, Vajeeston; Ponniah, Ravindran; Kjekshus, Arne & Fjellvåg, Helmer (2004). Structural stability of BeH2 at high pressures. Applied Physics Letters.  ISSN 0003-6951.  84, s 34- 36
  • Ponniah, Vajeeston; Ponniah, Ravindran; Ravindran, Vidya; Fjellvåg, Helmer & Kjekshus, Arne (2004). Design of potential hydrogen-storage materials using first-principle density-functional calculations. Crystal Growth & Design.  ISSN 1528-7483.  4, s 471- 477
  • Ravindran, Vidya; Ponniah, Ravindran; Ponniah, Vajeeston; Fjellvåg, Helmer & Kjekshus, Arne (2004). Spin, charge, and orbital orderings in oxides with dual-valent transition metal ions. Ceramics International.  ISSN 0272-8842.  30, s 1993- 1998 Show summary
  • Ravindran, Vidya; Ponniah, Ravindran; Ponniah, Vajeeston; Kjekshus, Arne & Fjellvåg, Helmer (2004). Effect of oxygen stoichiometry on spin, charge, and orbital ordering in manganites. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  69, s art. no.- 092405 Show summary
  • Ravindran, Ponniah; Vidya, R.; Vajeeston, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2003). Ground- and excited-state properties of inorganic solids from full-potential density-functional calculations. Journal of Solid State Chemistry.  ISSN 0022-4596.  176(2), s 338- 374
  • Vajeeston, Ponniah; Ravindran, Ponniah; Vidya, R.; Fjellvåg, Helmer & Kjekshus, Arne (2003). Pressure-induced phase of NaAlH4: A potential candidate for hydrogen storage?. Applied Physics Letters.  ISSN 0003-6951.  82(14), s 2257- 2259
  • Vajeeston, Ponniah; Ravindran, Ponniah; Vidya, R.; Kjekshus, Arne; Fjellvåg, Helmer & Yartys, V.A. (2003). Short hydrogen-hydrogen separation in RNiInH1.333 (R=La, Ce, Nd). Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  67(1), s 014101/1- 014101/11
  • Vajeeston, Ponniah; Ravindran, Ponniah; Ravindran, Vidya; Fjellvåg, Helmer & Kjekshus, Arne (2003). Huge-pressure-induced volume collapse in LiAlH4 and its implications to hydrogen storage. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  68, s art. no.- 212101
  • Ravindran, Ponniah; Vajeeston, Ponniah; Vidya, R.; Kjekshus, Arne & Fjellvåg, Helmer (2002). Violation of the minimum H-H separation "rule" for metal hydrides. Physical Review Letters.  ISSN 0031-9007.  89(106403) Show summary
  • Ravindran, Ponniah; Vidya, R.; Vajeeston, Ponniah; Kjekshus, Arne; Fjellvåg, Helmer & Hauback, Bjørn C. (2002). Antiferromagnetic vs. ferromagnetic interactions and spin-glass-like behavior in ruthenates. Solid State Communications.  ISSN 0038-1098.  124(8), s 293- 298 Show summary
  • Vajeeston, Ponniah; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2002). Pressure-induced structural transitions in MgH2. Physical Review Letters.  ISSN 0031-9007.  89(175506) Show summary
  • Vajeeston, Ponniah; Vidya, R.; Ravindran, Ponniah; Fjellvåg, Helmer; Kjekshus, Arne & Skjeltorp, Arne Torbjørn (2002). Electronic structure, phase stability and chemical bonding in Th2Al and Th2AlH4. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  65(075101) Show summary
  • Ravindran, Ponniah; Vajeeston, Ponniah; Vidya, R.; Kjekshus, Arne & Fjellvåg, Helmer (2001). Detailed electronic structure studies of superconducting MgB2 and related compounds. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  64(224509) Show summary

View all works in Cristin

  • Hu, Yang; El-Kharbachi, Abdelouahab; Yoshida, Koji; Vajeeston, Ponniah; Sørby, Magnus Helgerud; Orimo, Shin-Ichi; Fjellvåg, Helmer & Hauback, Bjørn (2017). Ionic Properties of the borohydride-sulfide Mixed System for All-Solid Li-Ion Batteries.
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah; Emerich, Hermann; Fjellvåg, Helmer; Hermann, Matthias; Hu, Yang; Ruud, Amund & Drathen, Christina (2016). Size Matters: How crystallite size controls reaction path in the sodium bismuth anode system.
  • 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?.
  • Rasakkannu, Muregesan; Vajeeston, Ponniah & Velauthapillai, Dhayalan (2015). Computational Modeling of New bulk materials for the Intermediate Band Solar cells.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Computational materials design and characterisation for energy harvesting and energy storage materials.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). High-throughput computational materials design and characterisation for functional inorganic materials.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Particle size reduction enhance the conductivity in Li2FeSiO4.
  • Vajeeston, Ponniah (2014). First-principles study of structural stability, dynamical and Mechanical properties of Li2FeSiO4 polymorphs.
  • Vajeeston, Ponniah (2013). Computational Studies of Materials for Hydrogen Storage in the Bulk and Nano phases.
  • Vajeeston, Ponniah (2013). Search for potential precursors for Si/SiO2-atomic layer deposition - a quantum chemical study.
  • 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), s 2711- 2712 . doi: 10.1016/j.ijhydene.2011.10.097
  • Vajeeston, Ponniah (2010). Materials characterisation from Density Functional theory.
  • Vajeeston, Ponniah (2010). Nanophase aspects of hydrogen storage materials - a theoretical study.
  • Karazhanov, Smagul; Ravindran, Ponniah; Ulyashin, Alexander; Vajeeston, Ponniah & Finstad, Terje (2006). Electronic Structure and Optical Properties of Indium Tin Oxide.
  • Ravindran, Ponniah; Vajeeston, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2003). Chemical-bonding and High-pressure Studies on Hydrogen-storage Materials.
  • Vajeeston, Ponniah; Ravindran, Ponniah; Vidya, R.; Fjellvåg, Helmer & Kjekshus, Arne (2003). Design of Potential Hydrogen-storage Material using First-principle Density-functional Calculations.
  • Vidya, R.; Ravindran, Ponniah; Vajeeston, Ponniah; Fjellvåg, Helmer & Kjekshus, Arne (2003). Spin, charge, and orbital orderings in oxides with dual-valent transition-metal ions.
  • Ravindran, Ponniah; Vidya, R.; Vajeeston, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2001). Electronic structure studies on superconducting MgB2 and related compounds.
  • Vajeeston, Ponniah; Ravindran, Ponniah; Vidya, R.; Fjellvåg, Helmer; Kjekshus, Arne & Skjeltorp, Arne Torbjørn (2001). Theoretical investigation of hydrides based on Cu2Al-type materials.

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