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

Takeo Oku; Yuya Ohishi; Atsushi Suzuki; Yuzuru Miyazawa

doi:10.3390/met6070147

Metals (Jun 2016)

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

Takeo Oku,
Yuya Ohishi,
Atsushi Suzuki,
Yuzuru Miyazawa

Affiliations

Takeo Oku: Department of Materials Science, University of Shiga Prefecture, 2500 Hassaka, Hikone, Shiga 522-8533, Japan
Yuya Ohishi: Department of Materials Science, University of Shiga Prefecture, 2500 Hassaka, Hikone, Shiga 522-8533, Japan
Atsushi Suzuki: Department of Materials Science, University of Shiga Prefecture, 2500 Hassaka, Hikone, Shiga 522-8533, Japan
Yuzuru Miyazawa: U-TEC Laboratory, U-TEC Corporation, 648-1 Matsukasa, Yamatokoriyama, Nara 639-1124, Japan

DOI: https://doi.org/10.3390/met6070147
Journal volume & issue: Vol. 6, no. 7
p. 147

Abstract

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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.

Published in Metals

ISSN: 2075-4701 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.mdpi.com/journal/metals

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