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

• Orginal Article • Previous Articles    

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

Jia-Yue XU1, Xiao-Xiao LIANG1, Min JIN2(), Hai-Bo ZENG1,3, Hideo KIMURA4, Hao-Yang HU2, He-Zhu SHAO2, Hui SHEN1, Tian TIAN1, Hai-Xia LI1   

  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 Online:2018-11-16 Published: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: 

  • TQ174