Sub‐Nanometer Conformal TiO 2  Blocking Layer for High Efficiency Solid‐State Perovskite Absorber Solar Cells | Zendy

Chandiran Aravind Kumar | Zendy; Yella Aswani | Zendy; Mayer Matthew T. | Zendy; Gao Peng | Zendy; Nazeeruddin Mohammad Khaja | Zendy; Grätzel Michael | Zendy

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Sub‐Nanometer Conformal TiO 2 Blocking Layer for High Efficiency Solid‐State Perovskite Absorber Solar Cells

Author(s) -

Chandiran Aravind Kumar,

Yella Aswani,

Mayer Matthew T.,

Gao Peng,

Nazeeruddin Mohammad Khaja,

Grätzel Michael

Publication year - 2014

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201306271

Subject(s) - overlayer , passivation , materials science , perovskite (structure) , energy conversion efficiency , layer (electronics) , blocking (statistics) , photovoltaic system , nanometre , nanotechnology , deposition (geology) , solid state , atomic layer deposition , optoelectronics , engineering physics , chemical engineering , computer science , electrical engineering , composite material , paleontology , chemistry , sediment , engineering , biology , computer network

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 (CH 3 NH 3 PbI 3 ) absorber‐based solar cells. Surpassing the existing multilayer passivation, this ultrathin sub‐nanometer layer leads to a photovoltaic power conversion efficiency of 11.5%.

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