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

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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Zusammenfassung: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%.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201306271