Sub-Nanometer Conformal TiO2 Blocking Layer for High Efficiency Solid-State Perovskite Absorber Solar Cells

A mere 2 nm conformal titanium dioxide overlayer coated by atomic layer deposition is shown to act as a blocking layer for high‐efficiency solid‐state perovskite (CH3NH3PbI3) absorber‐based solar cells. Surpassing the existing multilayer passivation, this ultrathin sub‐nanometer layer leads to a pho...

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Veröffentlicht in:	Advanced materials (Weinheim) 2014-07, Vol.26 (25), p.4309-4312
Hauptverfasser:	Chandiran, Aravind Kumar, Yella, Aswani, Mayer, Matthew T., Gao, Peng, Nazeeruddin, Mohammad Khaja, Grätzel, Michael
Format:	Artikel
Sprache:	eng
Schlagworte:	atomic layer deposition blocking layer CH3NH3PbI3 dye-sensitized solar cell perovskite absorber
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creator	Chandiran, Aravind Kumar Yella, Aswani Mayer, Matthew T. Gao, Peng Nazeeruddin, Mohammad Khaja Grätzel, Michael
description	A mere 2 nm conformal titanium dioxide overlayer coated by atomic layer deposition is shown to act as a blocking layer for high‐efficiency solid‐state perovskite (CH3NH3PbI3) absorber‐based solar cells. Surpassing the existing multilayer passivation, this ultrathin sub‐nanometer layer leads to a photovoltaic power conversion efficiency of 11.5%.
doi_str_mv	10.1002/adma.201306271
format	Article
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source	Wiley Online Library Journals Frontfile Complete
subjects	atomic layer deposition blocking layer CH3NH3PbI3 dye-sensitized solar cell perovskite absorber
title	Sub-Nanometer Conformal TiO2 Blocking Layer for High Efficiency Solid-State Perovskite Absorber Solar Cells
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