An Ultrathin Sputtered TiO2 Compact Layer for Mesoporous Brookite-based Plastic CH3NH3PbI3−xClx Solar Cells

A combination of a mesoporous brookite layer prepared at 150 °C and an ultrathin sputtered compact TiO2 layer was employed as an electron collector of CH3NH3PbI3−xClx perovskite solar cells on an indium tin oxide-polyethylene naphthalate (ITO-PEN) plastic film. The significant contribution of the 8...

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Bibliographic Details
Published in:Chemistry letters 2017, Vol.46 (4), p.530
Main Authors: Kogo, Atsushi, Iwasaki, Shinichi, Ikegami, Masashi, Miyasaka, Tsutomu
Format: Article
Language:eng ; jpn
Subjects:
Brookite
Energy conversion efficiency
Indium tin oxides
Perovskites
Photovoltaic cells
Polyethylene naphthalate
Solar cells
Titanium dioxide
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Summary:A combination of a mesoporous brookite layer prepared at 150 °C and an ultrathin sputtered compact TiO2 layer was employed as an electron collector of CH3NH3PbI3−xClx perovskite solar cells on an indium tin oxide-polyethylene naphthalate (ITO-PEN) plastic film. The significant contribution of the 8 nm-thick compact layer on ITO to suppressing recombination was clarified; this contribution resulted in a high power conversion efficiency of up to 13.8%.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.161163