Effects of Cl Addition to Sb-Doped Perovskite-Type CH3NH3PbI3 Photovoltaic Devices

Metals

Yuya Ohishi¹  Takeo Oku¹  Atsushi Suzuki¹  Yuzuru Miyazawa² 

[1] Department of Materials Science, University of Shiga Prefecture, 2500 Hassaka, Hikone, Shiga 522-8533, Japan;U-TEC Laboratory, U-TEC Corporation, 648-1 Matsukasa, Yamatokoriyama, Nara 639-1124, Japan;

关键词: microstructure;    photoconversion;    solar cell;    perovskite;    Sb;    Cl;    NH4Cl;    antimony;   

DOI  :  10.3390/met6070147

来源: DOAJ

【 摘 要 】

The effects of SbI3, PbCl2, and NH4Cl addition to perovskite CH3NH3PbI3 precursor solutions on photovoltaic properties were investigated. TiO2/CH3NH3Pb(Sb)I3(Cl)-based photovoltaic devices were fabricated by a spin-coating technique, and the microstructures of the devices were investigated by X-ray diffraction and scanning electron microscopy. Current density-voltage characteristics and incident photon-to-current conversion efficiencies were improved by a small amount of Sb- and Cl-doping, which resulted in improvement of the efficiencies of the devices. The structure analysis indicated formation of a homogeneous microstructure by NH4Cl addition with SbI3.

【 授权许可】

Unknown