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Issue 1, 2015
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The identification and characterization of defect states in hybrid organic–inorganic perovskite photovoltaics

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Abstract

Thin film photovoltaic cells based on hybrid halide perovskite absorbers have emerged as promising candidates for next generation photovoltaics. Here, we have characterized and identified the defect energy distribution in the CH3NH3PbI3 perovskite using admittance spectroscopy, which reveals a deep defect state ∼0.16 eV above the valence band. According to theoretical calculations, the defect state is possibly attributed to iodine interstitials (Ii), which can become the non-radiative recombination centers in the absorber.

Graphical abstract: The identification and characterization of defect states in hybrid organic–inorganic perovskite photovoltaics

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Publication details

The article was received on 03 Oct 2014, accepted on 07 Oct 2014 and first published on 29 Oct 2014


Article type: Communication
DOI: 10.1039/C4CP04479G
Phys. Chem. Chem. Phys., 2015,17, 112-116

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    The identification and characterization of defect states in hybrid organic–inorganic perovskite photovoltaics

    H. Duan, H. Zhou, Q. Chen, P. Sun, S. Luo, T. Song, B. Bob and Y. Yang, Phys. Chem. Chem. Phys., 2015, 17, 112
    DOI: 10.1039/C4CP04479G

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