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Fabrication and characterization of CH^sub 3^NH^sub 3^(Cs)Pb(Sn)I^sub 3^(Cl) perovskite solar cells with TiO^sub 2^ nanoparticle layers

TiO2/CH3NH3(Cs)Pb(Sn)I3(Cl)-based photovoltaic cells were fabricated and investigated. The solar cells with TiO2 nanoparticles on compact TiO2 layers provided better photovoltaic performance than those without TiO2 nanoparticles on the compact TiO2 layers. The short-circuit current density and open-...

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Published in:	Japanese Journal of Applied Physics 2018-02, Vol.57 (2), p.02CE03
Main Authors:	Ueoka, Naoki, Oku, Takeo, Suzuki, Atsushi, Sakamoto, Hiroki, Yamada, Masahiro, Minami, Satoshi, Miyauchi, Shinsuke
Format:	Article
Language:	English
Subjects:	Grain boundaries Lead Nanoparticles Open circuit voltage Perovskites Photoelectricity Photovoltaic cells Quantum efficiency Short circuits Solar cells Tin Titanium dioxide X-ray diffraction
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container_title	Japanese Journal of Applied Physics
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creator	Ueoka, Naoki Oku, Takeo Suzuki, Atsushi Sakamoto, Hiroki Yamada, Masahiro Minami, Satoshi Miyauchi, Shinsuke
description	TiO2/CH3NH3(Cs)Pb(Sn)I3(Cl)-based photovoltaic cells were fabricated and investigated. The solar cells with TiO2 nanoparticles on compact TiO2 layers provided better photovoltaic performance than those without TiO2 nanoparticles on the compact TiO2 layers. The short-circuit current density and open-circuit voltage were increased by using 16 nm TiO2 nanoparticles, which resulted in improved photoelectric conversion efficiency. The external quantum efficiency increased because of the improved interface between the TiO2 layer and the perovskite layer. X-ray diffraction showed suppression of the formation of PbI2 crystals, and the coverage and grain boundary area of the perovskite crystals with 16 nm TiO2 layers were improved, which resulted in the improved performance of the perovskite solar cell.
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source	IOPscience journals; Institute of Physics
subjects	Grain boundaries Lead Nanoparticles Open circuit voltage Perovskites Photoelectricity Photovoltaic cells Quantum efficiency Short circuits Solar cells Tin Titanium dioxide X-ray diffraction
title	Fabrication and characterization of CH^sub 3^NH^sub 3^(Cs)Pb(Sn)I^sub 3^(Cl) perovskite solar cells with TiO^sub 2^ nanoparticle layers
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