Journal of Inorganic Materials ›› 2016, Vol. 31 ›› Issue (10): 1063-1067.DOI: 10.15541/jim20160150

• Orginal Article • Previous Articles     Next Articles

Solution Growth and Performance of CH3NH3PbCl3 Single Crystal

WANG Wan-Fu1, SU Jing1, LEI Yong1, ZHONG Kun1, WANG Di2   

  1. (1. School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China; 2. National Laboratory of Solid State Microstructures and Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China)
  • Received:2016-03-15 Revised:2016-03-25 Published:2016-10-20 Online:2016-09-23
  • About author:WANG Wan-Fu. E-mail: 572088876@qq.com
  • Supported by:
    National Natural Science Foundation of China (51472123;1302268;51502142);Jiangsu Province Practice and Innovation Training Program for College Students(201410300014Z);'Qing Lan' Project Foundation of Jiangsu Province

Abstract:

Perovskite-type organic-inorganic hybrids CH3NH3PbX3(X= halogen) are good application materials for solid-state solar cell devices. To study the basic performances of these perovskite compounds, growth and optical-electrical properties of the large single crystals with high quality are of great necessity. In present study, CH3NH3PbCl3 single crystals with dimension of about 4 mm×3 mm×3 mm were grown by evaporation and inversion crystallization method. Powder X-ray diffraction (PXRD) of the obtained crystals powder showed that the crystals were of cubic structure, and their lattice constants were 0.56833 nm and 0.56891 nm, respectively. Fourier transform-infrared (FT-IR) and Raman spectra of the crystals were measured and the peaks were assigned. The optical properties were characterized by UV-VIS-NIR and photoluminescence spectroscopy. The results showed that the absorption edge of CH3NH3PbCl3 crystal was about 423 nm, with the photoluminescence peak at 433 nm, the band gap at 2.97 eV. As compared with the optical properties of CH3NH3PbCl3 thin films, CH3NH3PbCl3 single crystal has application advantages in solar cell. Finally, the band structure of CH3NH3PbCl3 crystal was studied by the first principle, and the band gap value was calculated to be 2.428 eV, which was in good agreement with the present experimental result.

Key words: CH3NH3PbCl3 single crystal, evaporation crystallization, inversion crystallization, spectroscopy

CLC Number: