Personal Details

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Dr. WEI Fengxia

Scientist II


Structural Materials (STR) Department


2 Fusionopolis Way, Innovis, #08-03, Singapore 138634

Research Details

  • Structural-property relationship

  • High entropy alloys, oxide fuel cell electrolyte, hybrid perovskites

  • High throughput X-ray diffraction

  • Materials Synthesis:
    • Solid state reaction, single crystal growth (Floating zone method, solution growth method, hydrothermal method, mechanochemical synthesis )
    • Metal oxide, rare earth oxide, ceramic materials, hybrid perovskites.
  • Materials characterization:
    • TEM (JEOL 2010, JEOL 2100F, software GATAN, CRISP, ImageJ, STEMCELL, JEMS )
    • SEM
    • X-ray diffraction (powder, single crystal)
    • Single crystal neutron diffraction
    • Synchrotron diffraction (Single crystal high pressure, variable temperature powder and powder PDF)
    • Small angle X-ray scattering

Accelerated Materials Development  (AMDM)

  • Institute of Materials Research and Engineering, A*STAR, , Scientist II         April 2019 to present

  • Institute of Materials Research and Engineering, A*STAR, , Scientist I          Oct 2017 to Mar 2019

  • University of Cambridge, UK, Postdoc,                                                            Nov 2015 to Oct 2017

  • Singapore Polytechnic, Research Scientist,                                                    Sept 2014 to Apr 2015

  • Nanyang Technological University, Project Officer,                                         Sept 2012 - Feb 2014

  • Nanyang Technological University, Project Officer,                                         Sept 2008- Jul 2009



B.Eng   2004-2008     School of Materials Science and Engineering, Nanyang Technological University, 1st class Honors, Singapore.

Ph.D    2008-2014      School of Materials Science and Engineering (MSE), Nanyang Technological University (NTU), Singapore (Supervisor: Prof Tim White, Co-supervisor: Prof Christian Kloc)


  • A*STAR International Fellowship (2014)
  • World Future Foundation PhD thesis prize in Environmental and Sustainability Research @NTU (2014)
  • MSE Research Scholarship (2009-2013)
  • Singapore Ministry of Education Undergraduate Scholarship (2004-2008)
  • Royal Society of Chemistry Membership, UK (2017-2018)
  • Postdoc Society of Trinity college, University of Cambridge (2016-2017)


  1.  Wei, F.X., Deng, Z., Sun, S., Hartono, N., Seng, H., Buonasisi, T., Bristowe, P.B., Cheetham A.K., Enhanced visible light absorption for lead-free double perovskite Cs2AgSbBr6, Chem. Commun. 2019, 55, 3721 - 3724.

  2.  Hou, J., Sutrisna, P., Wang, T., Gao, S., Li, Q., Zhou, C., Sun, S., Yang, H., Wei, F.X., Ruggiero, M., Zeitler, J., Cheetham, A.K., Liang K., Chen, V., Unraveling the interfacial structure-performance correlation of flexible metal-organic framework membranes on polymeric substrates, ACS Appl. Mater. Interfaces, 2019, 11 (5), pp 5570–5577.

  3. Ng, C.K., Tam, T.L., Wei, F.X., Lu, X., Wu, J., Anion–π and anion–π-radical interactions in bis(triphenylphosphonium)-naphthalene diimide salts, Org. Chem. Front., 2019, 6, 110-115.


  1. Handoko, A.D.; Wei. F.X.; Lim, J., Yeo, B.S.; Seh, Z., Understanding heterogeneous electrocatalytic carbon dioxide reduction through operando techniques, 2018, Nat. Catal.(1), 922-924. 

  2. Kieslich, G., Skelton, J.M., Armstrong, J., Wu, Y., Wei, F.X., Svane, K.L., Walsh, A.; Butler, K.T., Hydrogen bonding versus entropy: revealing the underlying thermodynamics of the hybrid organic-inorganic perovskite [CH3NH3] PbBr3, Chem. Mater. 2018, DOI: 10.1021/acs.chemmater.8b03164. IF. 9.890, citation: 0.

  3. Wu, Y.; Halat, D.; Wei, F.X.; Binfor, T.; Seymour, L.; Gaultois, M.; Shaker, S.; Wang, J.; Grey, C.; Cheetham, A.K.; Mixed X-site formate-hypophosphite hybrid perovskite, Chem. Eur. J., 2018, DOI: 10.1002/chem.201803061. IF. 5.16, citation:0

  4. Wei, F.X., Brivio, F., Wu, Y., Sun, S., Bristowe, P.D., Cheetham, A.K., Synthesis, crystal structure, magnetic and electronic properties of the caesium-based transition metal halide Cs3Fe2Br9, J. Mater. Chem. C. 2018, 6(14), p 3573-3577. IF: 5.976, citation: 1.

  5. Deng, Dong, L., Sun, S.J., Deng, Z, Li, W., Wei, F.X., Qi, Y., Li, Y., Li, X. Lu, P. Ramamurty, U., Elastic properties and thermal expansion of lead-free halide double perovskite Cs2AgBiBr6., Comput. Mater. Sci. 2018, 141, 49-58.  IF: 2.53, citation:6.

  6. Hoye, R.; Eyre, L.; Wei, F.X.; Brivio, F.; Sadhanala, A.; Sun, S.; Li, W.; Zhang, K.; MacManus‐Driscoll J.L.; Bristowe, P.D.; Friend, R.H.; Cheetham, A.K.; Deschler, F.; Fundamental carrier lifetime exceeding 1 µs in Cs2AgBiBr6 double perovskite, Adv. Mater. Interfaces, 2018, p.1800464, IF: 4.834, citation: 0.

  7. Hu, P., Wang, S., Chaturvedi, A., Wei, F.X., Zhu, X., Zhang, X., Li, R., Jiang, H., Long, Y., Kloc, C., , Impact of CH··· X (X= F, N) and π-π Interactions on Tuning the Degree of Charge Transfer in F6TNAP-based Organic Binary Compound Single Crystals, Cryst. Growth Des. 2018, 18 (3), pp 1776–1785. IF: 3.972, citation:4.


  8. Wei, F.X; Deng, Z.Y; Sun, S.J.; Zhang, F.H.; Evans, D.M.; Kieslich, G.; Tominaka, S.; Carpenter, M.A.; Zhang, J.; Bristowe, P.D.; Cheetham, A.K.; The Synthesis and Properties of a Lead-Free Hybrid Double Perovskite: (CH3NH3)2AgBiBr6, Chem. Mater. 2017, 29 (3), pp 1089–1094. IF: 9.890, citation: 63.

  9. Longley, L., Li, N., Wei, F.X., Bennett, T. D., Uncovering a reconstructive solid–solid phase transition in a metal– organic framework, R. Soc. open sci., 2017, 4: 171355.  IF: 2.243, citation: 0.

  10. Sun, S., Deng, Z, Wu,Y., Wei, F.X., Isikgor, F., Brivio, F., Gaultois, M., Ouyang, J.,  Bristowe, P., Cheetham A. and Kieslich,G. Variable temperature and high-pressure crystal chemistry of perovskite formamidinium lead iodide: a single crystal X-ray diffraction and computational study. Chem. Commun., 2017, 53 (54), 7537-7540. IF: 6.290, citation:10.

  11. Deng, Z., Wei, F.X., Brivio, F., W, Y., Sun, S.J., Bristowe, P., Cheetham, A.K., The synthesis and characterization of the rare-earth hybrid double perovskite: (CH3NH3)2KGdCl6 and (CH3NH3)2KYCl6. J. Phys. Chem. Lett., 2017, 8, 5015-5020. IF: 8.709, citation: 7.

  12. Sun, S., Isikgor, H., Deng, Z., Wei, F.X., Kieslich, G., Bristowe, P., Ouyang, J., and Cheetham, A. Factors influencing the mechanical properties of formamidinium lead halides and related hybrid perovskites.  ChemSusChem, 2017, 10 (19), 3740-3745. IF: 7.411, citation: 9. 


  13. Wei, F.X.; Deng, Z.Y.; Sun, S.J.; Xie, F.; Kieslich, G.; Evans, D. M.; Carpenter, M. A.; Bristowe, P. D.; Cheetham, A. K., The synthesis, structure and electronic properties of a lead-free hybrid inorganic-organic double perovskite (MA)2KBiCl6 (MA = methylammonium). Mater. Horiz. 2016. 3, 328-332., IF:13.183, citation: 85.

  14. Deng, Z.Y., Wei, F.X., Sun, S., Kieslich, G., Cheetham, A. K. and Bristowe, P.D., Exploring the properties of leadfree hybrid double perovskites using a combined computationalexperimental approach, J. Mater.Chem.A 2016, 4, 12025-12029. IF: 9.931, citation: 45.

  15. Wang, J.X..; Wei, F.X.; Lim, S. M.; Liu, E.; Guet, C.; White, T.; Dong, Z., Synthesis and Crystal Structure Characterization of Oxysilicate Apatites for Stabilization of Sr and Rare-Earth Elements. J. Am. Ceram.Soc. 2016, 99 (5), 1761-1768. IF:2.956, citation: 0.

  16. Pramana, S.S, Baikie, T., An T, Tucker, M.G., Wu, J., Schreyer, M.K., Wei, F.X., Bayliss, R., Kloc, C.L, White, T.J., Horsfield,A.P., and Skinner, S.J., Correlation of location structures and diffusion pathways in modulated anisotropic ion conductors,  J. Amer. Chem. Soc, 2016, 138, 1273-1279. IF: 14.357, citation: 6.  

  17. Hu, P., Du, K.Z., Wei, F.X., Jiang, H., Kloc, C., Crystal growth, HOMO-LUMO engineering and charge transfer degree in Perylene-FxTCNQ(x=1,2,4) organic charge transfer binary compounds, Cryst. Growth Des., 2016, 16(5), 3019-3027.  IF: 3.972, citation: 33


  18. Wei, F.X., Gasparyan, H., Keenan, P., Gutmann, M., Fang, Y.N., Baikie, T., Claridge, J.,  Slater, P.,  Kloc, C., and  White, T.; Intermediate temperature anisotropic ion conduction in melilite electrolyte, J. Mater. Chem. A, 2015, 3, 3091-3096.  IF: 9.931, citation: 11.

  19. Wei, F.X; Fang, Y.N.; Xiao, S.J.; Cheng, Z.L.; Liu, Q.S.; Ting, K.E.; Yin, X.J., Ultrafast Growth of Self-organized Anatase Nanorod arrays using anodization method without thermal annealing, J. sci. technol. environ.inform., 2015, 5(1),  3000259. IF: 2.29, citation: 0.

  20. Liu, X.; Zhang, Q.; Chong, W. K.; Yip, J. N.; Wen, X.; Li, Z.; Wei, F.X; Yu, G.; Xiong, Q.; Sum, T. C., Cooperative Enhancement of Second-Harmonic Generation from a Single CdS Nanobelt-Hybrid Plasmonic Structure. ACS Nano 2015, 9 (5), 5018-5026. IF: 13.709, citation: 19.

  21. Teng, Y.T., Wei, F.X., Yazami, R., Synthesis of NixCo(1-x)F2 (x= 0, 0.25, 0.50, 0.75, 1.0) and application in lithium ion batteries, J. Alloys compd., 2015, 653,434-443.  IF: 3.779, citation: 5.

  22. Jiang, C.Y., Lim, S.L., Goh, W.P., Wei, F.X., Zhang, J., Improvement of CH3NH3PbI3 formation for efficient and reproducible mesoscopic perovskite solar cells, ACS Appl. Mater. Interfaces, 2015, 7, 24726-24732. IF: 8.097, citation: 33.


  23. Hu. P., Ma, L., Tan, K.J., Jiang, H., Wei, F.X., Yu, C., Goetz, K., Jurchescu, O., McNeil, L., Gurzadyan, G.G. and Kloc, C, Solvent-Dependent Stoichiometry of Perylene and TCNQ (7,7,8,8-tetracyanoquinodimethane) Charge Transfer Compounds, Cryst. Growth Des., 2014, 14, 6376-6382. IF: 3.972, citation: 20.

  24. Jiang, H.; Ye, J.; Hu, P.; Wei, F.X.; Wang, N.; Kloc, C.; Single Crystals of Fluorinated Metal Phthalocyanines: From Theoretical Predictions to Physical Properties, Scientific Report. NPG, 2014, 4, 7573. IF: 4.122, citation: 27.

  25. Baikie, T., Schreyer, M., Wei, F.X., Herrin,J.S.,  Ferraris, C., Brink, F., Topolska, J., Piltz, R., Price, J. and  White, T.;The Influence of Stereochemically Active Lone Pair Electrons on Crystal Symmetry and Twist Angles in Lead Apatite-2H Type Structures, Mineral. Mag., 2014, 78(2), p. 325-345. IF: 1.285, citation: 5.


  26. An, T, Baikie,T., Wei, F.X.,  Pramana, S.S, Schreyer, M., Piltz, R., Shin, F., Wei, J., Slater, P., and White, T., Crystallographic Correlations with Anisotropic Oxide Ion Conduction in Aluminum-doped Neodymium Silicate Apatite Electrolytes. Chem. Mater., 2013, 25(7), p. 1109-1120.  IF: 9.890, citation: 12.

  27. Baikie, T., Fang, Y.N, Kadro, J. M., Schreyer, M, Wei, F.X., Mhaisalkar, S. G., Graetzel, M. and White, T. J., Synthesis and Crystal Chemistry of the Hybrid Perovskite (CH3NH3)PbI3 for Solid State Sensitised Solar Cell Applications. J. Mater. Chem. A, 2013. 1(18): p. 5628-5641. IF: 9.931, citation: 1443.

  28. Toh, M.L., Tan, K.J., Wei, F.X., Zhang, K.K., Jiang, H., Kloc, C., Intercalation of organic molecules into SnS2 single crystals. J. Solid State Chem, 2013. 198: p. 224-230. IF: 2.179, citation: 22.

  29. Jiang, H.; Zhang, K. K.; Ye, J.; Wei, F.X.; Hu, P.; Guo, J.; Liang, C. Y.; Chen, X. D.; Zhang, Y.; Mcneil, L. E.; Hu, W. P.; Kloc, C., Atomically flat, large-sized, two-dimensional organic nanocrystals. Small 2013, 9, p.990-995. IF: 9.59, citation: 26.

  30. Bayliss, R.; Pramana, S.; An, T.; Wei, F.X.; Kloc, C.; White, A.; Skinner, S.; White, T.; Baikie, T., FergusoniteType CeNbO4+δ Electrolyte: Single Crystal Growth, Symmetry Revision and Conductivity. J.  Solid State Chem, 2013, 204, p. 291-297.  IF: 2.179, citation: 10.

  31. Wei, F.X.; Williams, T.; An, T.; Thomas, T.; Kloc, C.; Wei, J.; White, T.; Atomic scale observation of compositional and displacive modulations in  incommensurate melilite electrolytes, J.solid state chem. 2013, 203, p.291-296.  IF: 2.179, citation: 2.

  32. Xiao, J.C.,, Azuma, Y., Liu, Y., Li, G., Wei, F.X., Tan, K.J., Kloc, C., Zhang, H., Majima, Y. and Zhang, Q., Synthesis, structure, physical properties, and displacement current measurement of an n-type organic semiconductor: 2:3,5:6-bis(1,1-dicyanoethylene- 2,2-dithiolate)-quinone., Aust. J. Chem. 2013, p. 1674-1678.  IF: 1.059, Citation: 6.


  33. Wei, F.X.; Baikie, T.; An, T.; Kloc, C.; Wei, J.; white, T., The crystal chemistry of melilite [CaLa]2[Ga]2[Ga2O7]2: a five dimensional solid electrolyte. Inorg. Chem. 2012, 51, (10),p. 5941-5949.  IF: 4.700, citation: 12.

  34. Liu, Y.; Wei, F.X.; Yeo, S. N.; Lee, F. M.; Kloc, C.; Yan, Q.; Hng, H. H.; Ma, J.; Zhang, Q., Synthesis, crystal structure, and optical properties of a three- dimensional quaternary Hg-In-S-Cl Chalcohalide: Hg7InS6Cl5. Inorg. Chem. 2012, 51, p.4414-4416.  IF: 4.700, citation: 26.

  35. Liu, Y.; Wei Tan, M. J.; Wei, F.X.; Tian, Y.; Wu, T.; Kloc, C.; Huo, F.; Yan, Q.; Hng, H. H.; Ma, J.; Zhang, Q. C., In situ formation of new organic ligands to construct two novel self-charge-transfer Pb(ii)-based frameworks. CrystEngComm 2012, 14, (1), p. 75-78.  IF: 3.304, citation: 14.

  36. Wu, Y. C.; Yin, Z. Y.; Xiao, J. C.; Liu, Y.; Wei, F.X.; Tan, K. J.; Kloc, C.; Huang, L.; Yan, Q.; Hu, F.; Zhang, H.; Zhang, Q., Crystal structure and phototransistor behavior of N-substituted Heptacene. ACS Appl. mater. Interfaces 2012, 4, p. 1883-1886.  IF: 8.097, citation: 69.


  37. Wei, F.X.; Baikie, T.; An, T.; Shreyer, M.; Kloc, C.; White, T., Five-dimensional incommensurate structure of the melilite electrolyte [CaNd]2[Ga]2[Ga2O7]2. J. Am. Chem. Soc. 2011, 133, (38), p.15200-15211. IF:14.357, citation: 20.

  38. An, T.; Baikie, T.; Wei, F. X.; Kloc, C.; Brink, F.; Wei, J.; Ngoh, S. L.; White, T., Single crystal growth of apatitetype Al-doped neodymium silicates by the floating zone method. J. Cryst. Grow. 2011, 333, (1), p.70-73. IF: 1.742, Citation: 11.

  39. Yuan, H. T.; Toh, M. L.; Morimoto, K.; Tan, W.; Wei, F.X.; Shimotani, H.; Kloc, C.; Wasa, Y., Liquid-gated electric-double-layer transistor on layered metal dichalcogenide, SnS2. Appl. Phys. Lett. 2011, 98, p. 012102.  IF: 3.495, citation: 37.

  40. Liu, Y.; Tian, Y. F.; Wei, F.X.; Ser, C. P.; Huang, C. W.; Boey, F.; Kloc, C.; Chen, L.; Wu, T.; Zhang, Q. C., A new hydrazine-bridged thioantimonate Mn2Sb4S8(N2H4)2: Synthesis, structure, optical and magnetic properties. Inorg. Chem. Commun. 2011,14(6), p. 884-888. IF:1.81, citation: 30.

  41. Xiao, J.; Yang, B.; Wong, J.I.; Liu, Y.; Wei, F.X.; Tan, K.J.; Teng, X.; Wu, Y.; Huang, L.; Kloc, C.; Boey, F.; Ma, J.; Zhang,H.; Yang, H.; Zhang, Q.; Synthesis, characterization, self-assembly, and physical properties of 11-methylbenzo[d]pyreno[4,5-b]furan, Org. Lett.201113 (12), pp 3004–3007. IF: 6.492, citation, 77.



  42. Tam, T.L.; Li, H.; Wei, F.X.; Tan, K.J.; Kloc, C.; Lam, Y.; Mhaisalkar S.; Grimsdale, A.C.; One-Pot Synthesis of 4,8-Dibromobenzo[1,2-c;4,5-c′]bis[1,2,5]thiadiazole, Org. Lett.201012 (15), pp 3340–3343. IF: 6.492, citation: 38.

Last updated on : 02 Apr 2019 04:29 PM