Facile synthesis and characterization of \(\hbox {CsPbBr}_{3}\) and \(\hbox {CsPb}_{2}\hbox {Br}_{5}\) powders

  • Xinghua Su
  • Jing Zhang
  • Ge Bai


All-inorganic caesium lead-halide perovskite \(\hbox {CsPbBr}_{3}\) and \(\hbox {CsPb}_{2}\hbox {Br}_{5}\) powders have emerged as attractive optoelectronic materials owing to their stabilities and highly efficient photoluminescence (PL). Herein we report a facile chemical route to prepare highly luminescent monoclinic \(\hbox {CsPbBr}_{3}\) and tetragonal \(\hbox {CsPb}_{2}\hbox {Br}_{5}\) powders at room temperature. The \(\hbox {CsPbBr}_{3}\) powders exhibit regular crystal shape and demonstrate polyhedral geometry with an average particle size of 10 \(\upmu \)m. The \(\hbox {CsPb}_{2}\hbox {Br}_{5}\) powders show platelet morphologies and the lateral sizes of the particles are from 5 up to 200 \(\upmu \)m. Both \(\hbox {CsPbBr}_{3}\) and \(\hbox {CsPb}_{2}\hbox {Br}_{5}\) powders present a narrow emission line-width and PL emission of 528 and 527 nm, respectively. A direct band gap of 2.35 eV and an indirect band gap of 3.01 eV are calculated for \(\hbox {CsPbBr}_{3}\) and \(\hbox {CsPb}_{2}\hbox {Br}_{5}\) powders, respectively. In addition, the monoclinic \(\hbox {CsPbBr}_{3}\) can be transformed to tetragonal \(\hbox {CsPb}_{2}\hbox {Br}_{5}\) in the presence of water. The large-scale synthesis of \(\hbox {CsPbBr}_{3}\) and \(\hbox {CsPb}_{2}\hbox {Br}_{5}\) will be advantageous in future applications of optoelectronic devices.


\(\hbox {CsPbBr}_{3}\) \(\hbox {CsPb}_{2}\hbox {Br}_{5}\) powders synthesis characterization 



This work was supported by the China Postdoctoral Science Foundation under Grant Number 2015M582584, the Postdoctoral Research Project of Shaanxi Province under Grant Number 2016BSHEDZZ06, the Special Fund for Basic Scientific Research of Central Colleges, Chang’an University, under Grant Number 310831171011 and the Special Fund for Basic Research Support Programs of Chang’an University.


  1. 1.
    Dong Q, Fang Y, Shao Y, Mulligan P, Qiu J, Cao L and Huang J 2015 Science 347 967CrossRefGoogle Scholar
  2. 2.
    Noh J H, Im S H, Heo J H, Mandal T N and Seok S I 2013 Nano Lett. 13 1764CrossRefGoogle Scholar
  3. 3.
    Liu M, Johnston M B and Snaith H J 2013 Nature 501 395CrossRefGoogle Scholar
  4. 4.
    Yang W S, Noh J H, Jeon N J, Kim Y C, Ryu S, Seo J et al 2015 Science 348 1234CrossRefGoogle Scholar
  5. 5.
    Tan Z K, Moghaddam R S, Lai M L, Docampo P, Higler R, Deschler F et al 2014 Nat. Nanotechnol. 9 687Google Scholar
  6. 6.
    Kim Y H, Cho H, Heo J H, Kim T S, Myoung N, Lee C L et al 2015 Adv. Mater. 27 1248CrossRefGoogle Scholar
  7. 7.
    Zhang Q, Ha S T, Liu X, Sum T C and Xiong Q 2014 Nano Lett. 14 5995CrossRefGoogle Scholar
  8. 8.
    Sutherland B R, Hoogland S, Adachi M M, Wong C T and Sargent E H 2014 ACS Nano 8 10947CrossRefGoogle Scholar
  9. 9.
    Hu X, Zhang X, Liang L, Bao J, Li S, Yang W et al 2014 Adv. Funct. Mater. 24 7373CrossRefGoogle Scholar
  10. 10.
    Dou L, Yang Y M, You J, Hong Z, Chang W H, Li G et al 2014 Nat. Commun. 5 5404CrossRefGoogle Scholar
  11. 11.
    Zhu Z, Hadjiev V G, Rong Y, Guo R, Cao B, Tang Z et al 2016 Chem. Mater. 28 7385CrossRefGoogle Scholar
  12. 12.
    Gu Z, Wang K, Sun W, Li J, Liu S, Song Q et al 2016 Adv. Opt. Mater. 4 472CrossRefGoogle Scholar
  13. 13.
    Song J, Xu L, Li J, Xue J, Dong Y, Li X et al 2016 Adv. Opt. Mater. 28 4861CrossRefGoogle Scholar
  14. 14.
    Li X, Wu Y, Zhang S, Cai B, Gu Y, Song J et al 2016 Adv. Funct. Mater. 26 2435CrossRefGoogle Scholar
  15. 15.
    Swarnkar A, Chulliyil R, Ravi V K, Irfanullah M, Chowdhury A and Nag A 2015 J Angew. Chem. Int. Ed. 54 15424CrossRefGoogle Scholar
  16. 16.
    Kulbak M, Cahen D and Hodes G 2015 J. Phys. Chem. Lett. 6 2452CrossRefGoogle Scholar
  17. 17.
    Pan J, Sarmah S P, Murali B, Dursun I, Peng W, Parida M R et al 2015 J. Phys. Chem. Lett. 6 5027CrossRefGoogle Scholar
  18. 18.
    Song J, Li J, Li X, Xu L, Dong Y and Zeng H 2015 Adv. Mater. 27 7162CrossRefGoogle Scholar
  19. 19.
    Zhang X, Xu B, Zhang J, Gao Y, Zheng Y, Wang K et al 2016 Adv. Funct. Mater. 26 4595CrossRefGoogle Scholar
  20. 20.
    Tang X, Hu Z, Yuan W, Hu W, Shao H, Han D et al 2017 Adv. Opt. Mater. 5 1600788CrossRefGoogle Scholar
  21. 21.
    Akkerman Q A, Motti S G, Kandada A R S, Mosconi E, D’Innocenzo V, Bertoni G et al 2016 J. Am. Chem. Soc. 138 1010CrossRefGoogle Scholar
  22. 22.
    Bekenstein Y, Koscher B A, Eaton S W, Yang P and Alivisatos A P 2015 J. Am. Chem. Soc. 137 16008CrossRefGoogle Scholar
  23. 23.
    Rodová M, Brožek J, Knížek K and Nitsch K 2003 J. Therm. Anal. Calorim. 71 667CrossRefGoogle Scholar
  24. 24.
    Møller C K 1958 Nature 182 1436CrossRefGoogle Scholar
  25. 25.
    Protesescu L, Yakunin S, Bodnarchuk M I, Krieg F, Caputo R, Hendon C H et al 2015 Nano Lett. 15 3692CrossRefGoogle Scholar
  26. 26.
    Shamsi J, Dang Z, Bianchini P, Canale C, Stasio F D, Brescia R et al 2016 J. Am. Chem. Soc. 138 7240CrossRefGoogle Scholar
  27. 27.
    Ma R, Liu Z, Takada K, Iyi N, Bando Y and Sasaki T 2007 J. Am. Chem. Soc. 129 5257CrossRefGoogle Scholar
  28. 28.
    Niu G D, Guo X D and Wang L D 2015 J. Mater. Chem. A 3 8970CrossRefGoogle Scholar
  29. 29.
    Tang X, Hu Z, Chen W, Xing X, Zang Z, Hu W et al 2016 Nano Energy 28 462CrossRefGoogle Scholar
  30. 30.
    Li G, Wang H, Zhu Z, Chang Y, Zhang T, Song Z et al 2016 Chem. Commun. 52 11296CrossRefGoogle Scholar
  31. 31.
    Ruan L, Shen W, Wang A, Xiang A and Deng Z 2017 J. Phys. Chem. Lett. 8 3853CrossRefGoogle Scholar

Copyright information

© Indian Academy of Sciences 2018

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringChang’an UniversityXi’anChina

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