A Victim of Halide Ion Segregation. How Light Soaking Affects Solar Cell Performance of Mixed Halide Lead Perovskites

Samu, Gergely F.; Janáky, Csaba; Kamat, Prashant V.

doi:10.1021/acsenergylett.7b00589

Title: A Victim of Halide Ion Segregation. How Light Soaking Affects Solar Cell Performance of Mixed Halide Lead Perovskites

Abstract

Photoinduced segregation in mixed halide perovskites has a direct influence on decreasing the solar cell efficiency as segregated I-rich domains serve as charge recombination centers. Here, the changes in the external quantum efficiency mirror the spectral loss in the absorption; however, the time scale of the IPCE recovery in the dark is slower than the absorption recovery, showing the intricate nature of the photoinduced halide segregation and charge collection in solar cell devices.

Authors:

Samu, Gergely F. ^[1];

^[1];

Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary, MTA-SZTE “Lendület” Photoelectrochemistry Research Group, Rerrich Square 1, Szeged H-6720, Hungary

Publication Date:: Thu Jul 27 00:00:00 EDT 2017

Research Org.:: University of Notre Dame, IN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1372954

Alternate Identifier(s):: OSTI ID: 1415023

Grant/Contract Number:: FC02-04ER15533

Resource Type:: Published Article

Journal Name:: ACS Energy Letters

Additional Journal Information:: Journal Name: ACS Energy Letters Journal Volume: 2 Journal Issue: 8; Journal ID: ISSN 2380-8195

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY

Citation Formats


                    Samu, Gergely F., Janáky, Csaba, and Kamat, Prashant V. A Victim of Halide Ion Segregation. How Light Soaking Affects Solar Cell Performance of Mixed Halide Lead Perovskites.  United States: N. p., 2017. 
Web.  doi:10.1021/acsenergylett.7b00589.

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                    Samu, Gergely F., Janáky, Csaba, & Kamat, Prashant V. A Victim of Halide Ion Segregation. How Light Soaking Affects Solar Cell Performance of Mixed Halide Lead Perovskites.  United States.  https://doi.org/10.1021/acsenergylett.7b00589

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                    Samu, Gergely F., Janáky, Csaba, and Kamat, Prashant V. Thu .  
"A Victim of Halide Ion Segregation. How Light Soaking Affects Solar Cell Performance of Mixed Halide Lead Perovskites".  United States.  https://doi.org/10.1021/acsenergylett.7b00589.

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@article{osti_1372954,

  title        = {A Victim of Halide Ion Segregation. How Light Soaking Affects Solar Cell Performance of Mixed Halide Lead Perovskites},

  author       = {Samu, Gergely F. and Janáky, Csaba and Kamat, Prashant V.},

  abstractNote = {Photoinduced segregation in mixed halide perovskites has a direct influence on decreasing the solar cell efficiency as segregated I-rich domains serve as charge recombination centers. Here, the changes in the external quantum efficiency mirror the spectral loss in the absorption; however, the time scale of the IPCE recovery in the dark is slower than the absorption recovery, showing the intricate nature of the photoinduced halide segregation and charge collection in solar cell devices.},

  doi          = {10.1021/acsenergylett.7b00589},

  journal      = {ACS Energy Letters},

  number       = 8,

  volume       = 2,

  place        = {United States},

  year         = {Thu Jul 27 00:00:00 EDT 2017},

  month        = {Thu Jul 27 00:00:00 EDT 2017}

}

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Title: A Victim of Halide Ion Segregation. How Light Soaking Affects Solar Cell Performance of Mixed Halide Lead Perovskites

Abstract

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