Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (11): 1253-1258.DOI: 10.15541/jim20180234

Special Issue: 钙钛矿材料

• Orginal Article • Previous Articles    

Growth and Characterization of All-inorganic Perovskite CsPbBr3 Crystal by a Traveling Zone Melting Method

XU Jia-Yue1, LIANG Xiao-Xiao1, JIN Min2, ZENG Hai-Bo1,3, KIMURA Hideo4, HU Hao-Yang2, SHAO He-Zhu2, SHEN Hui1, TIAN Tian1, LI Hai-Xia1   

  1. (1. Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China; 2. 
    College of Materials, Shanghai Dianji University, Shanghai 201306, China; 3. Institute of Optoelectronics and Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; 4. National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan)
     
  • Received:2018-05-21 Published:2018-11-16 Online:2018-10-20
  • About author:XU Jia-Yue (1966-), professor. E-mail: xujiayue@sit.edu.cn
  • Supported by:
    Foundation item: National Natural Science Foundation of China (51472263, 51572175, 61605116);Ningbo Natural Science Foundation (2017A610009);Public Projects of Zhejiang Province (2017C31006);Shanghai Natural Science Foundation (15ZR1440600)

Abstract:

A self-designed traveling zone melting method was employed to fabricate perovskite CsPbBr3 crystals, which is helpful for impurities removing and moisture excluding. A large-size CsPbBr3 crystal with a dimension of ϕ 25 mm× 60 mm is successfully obtained. The as-grown crystal shows orange color and displays an excellent transmittance of 78.6% in the range of 600 nm - 2000 nm wavelength. It is revealed by DSC analysis that there is phase transition at 88.1℃ and 131.25℃, respectively. The band gap Eg of the crystal is calculated to be 2.25 eV. The above results prove that the traveling zone melting method is indeed a potential approach for large size and high quality CsPbBr3 crystal preparation.

 

Key words: traveling zone melting method, CsPbBr3 crystal, transmittance, band gap

CLC Number: