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Metals 2016, 6(7), 147; doi:10.3390/met6070147

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

1
Department of Materials Science, University of Shiga Prefecture, 2500 Hassaka, Hikone, Shiga 522-8533, Japan
2
U-TEC Laboratory, U-TEC Corporation, 648-1 Matsukasa, Yamatokoriyama, Nara 639-1124, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 26 February 2016 / Revised: 25 June 2016 / Accepted: 28 June 2016 / Published: 29 June 2016
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Abstract

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. View Full-Text
Keywords: microstructure; photoconversion; solar cell; perovskite; Sb; Cl; NH4Cl; antimony microstructure; photoconversion; solar cell; perovskite; Sb; Cl; NH4Cl; antimony
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Oku, T.; Ohishi, Y.; Suzuki, A.; Miyazawa, Y. Effects of Cl Addition to Sb-Doped Perovskite-Type CH3NH3PbI3 Photovoltaic Devices. Metals 2016, 6, 147.

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