Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
Feature: Functional Ceramics for Energy Conversion and Storage Devices: Full papers
Effects of NH4Cl addition to perovskite CH3NH3PbI3 photovoltaic devices
Takeo OKUYuya OHISHIAtsushi SUZUKIYuzuru MIYAZAWA
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2017 Volume 125 Issue 4 Pages 303-307

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Abstract

Effects of NH4Cl addition to perovskite CH3NH3PbI3 precursor solutions on photovoltaic properties were investigated. TiO2/CH3NH3PbI3(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 were improved by a small amount of Cl-doping, which resulted in improvement of the efficiencies of the devices. The structure analysis indicated formation of a homogeneous microstructure by NH4Cl addition to the perovskite phase, and formation of PbI2 was suppressed by the NH4Cl addition.

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© 2017 The Ceramic Society of Japan
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