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Fully Vacuum-Processed Wide Band Gap Mixed-Halide Perovskite Solar Cells AITranslate

Giulia Longo; Cristina Momblona; MariaGrazia LaPlaca; Lidón GilEscrig; Michele Sessolo; Henk J. Bolink;
Universidad de Valencia; Universidad de Valencia; Universidad de Valencia; Universidad de Valencia; Universidad de Valencia; Universidad de Valencia
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Abstract AITranslate

Methylammonium lead mixed-halide perovskites MAPb(BrxI1–x)3 are promising materials for the preparation of tandem devices. When exposed to light, MAPb(BrxI1–x)3 segregates in iodide- and bromide-rich phases, limiting the achievable photovoltage and hence the attainable device efficiency. To date only solution-processed mixed-halide perovskites have been demonstrated. We present fully vacuum-deposited mixed-halide perovskite thin films with band gap of 1.72 and 1.87 eV, prepared by controlling the deposition rates of the different halide precursors. When used in thin-film devices, these materials lead to power conversion efficiencies of 15.9 and 10.5%, respectively, which are among the highest reported to date for these types of wide band gap absorbers.

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DOI：https://doi.org/10.1021/acsenergylett.7b01217

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Methylammonium lead mixed-halide perovskites MAPb(BrxI1–x)3 are promising materials for the preparation of tandem devices. When exposed to light, MAPb(BrxI1–x)3 segregates in iodide- and bromide-rich phases, limiting the achievable photovoltage and hence the attainable device efficiency. To date only solution-processed mixed-halide perovskites have been demonstrated. We present fully vacuum-deposited mixed-halide perovskite thin films with band gap of 1.72 and 1.87 eV, prepared by controlling the deposition rates of the different halide precursors. When used in thin-film devices, these materials lead to power conversion efficiencies of 15.9 and 10.5%, respectively, which are among the highest reported to date for these types of wide band gap absorbers.

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GB/T 7714-2015 [1] Giulia Longo, Cristina Momblona, MariaGrazia LaPlaca, et al. ACS Energy Letters, 2018(3). DOI:10.1021/acsenergylett.7b01217.
MLA [1] Giulia Longo, et al., ACS Energy Letters, no. 3, 2018, https://doi.org/10.1021/acsenergylett.7b01217.
APA [1] Giulia Longo, Cristina Momblona, MariaGrazia LaPlaca, Lidón GilEscrig, Michele Sessolo, & Henk J. Bolink. (2018). ACS Energy Letters(3). https://doi.org/10.1021/acsenergylett.7b01217
IEEE [1] Giulia Longo, Cristina Momblona, MariaGrazia LaPlaca, Lidón GilEscrig, Michele Sessolo, and Henk J. Bolink, ACS Energy Letters, no. 3, 2018, doi: 10.1021/acsenergylett.7b01217.