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

Giulia Longo; Cristina Momblona; Maria Grazia La-Placa; Lidón Gil-Escrig; Michele Sessolo; Henk J. Bolink

doi:10.1021/acsenergylett.7b01217

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

Giulia Longo, Cristina Momblona, Maria Grazia La-Placa, Lidón Gil-Escrig, Michele Sessolo, Henk J. Bolink^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

98 Citations (Scopus)

Abstract

Methylammonium lead mixed-halide perovskites MAPb(Br_xI_1-x)₃ are promising materials for the preparation of tandem devices. When exposed to light, MAPb(Br_xI_1-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.

Original language	English
Pages (from-to)	214-219
Number of pages	6
Journal	ACS Energy Letters
Volume	3
Issue number	1
Early online date	22 Dec 2017
DOIs	https://doi.org/10.1021/acsenergylett.7b01217
Publication status	Published - 12 Jan 2018
Externally published	Yes

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title = "Fully Vacuum-Processed Wide Band Gap Mixed-Halide Perovskite Solar Cells",

abstract = "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.",

author = "Giulia Longo and Cristina Momblona and La-Placa, {Maria Grazia} and Lid{\'o}n Gil-Escrig and Michele Sessolo and Bolink, {Henk J.}",

note = "We are grateful to Novaled GmbH, for the supply of the organic charge-transport materials and dopants. We further acknowledge financial support from the European Union H2020 project INFORM (grant 675867), the Spanish Ministry of Economy and Competitiveness (MINECO) via the Unidad de Excelencia Mar{\'i}a de Maeztu MDM-2015-0538, MAT2017-88821-R, and PCIN-2015-255, and the Generalitat Valenciana (Prometeo/2016/135). C.M. and M.S. thank the MINECO for their pre- and postdoctoral (JdC) contracts. M.-G.L.-P. acknowledges the support of the Grisolia grant from the Generalitat Valenciana.",

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doi = "10.1021/acsenergylett.7b01217",

language = "English",

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T1 - Fully Vacuum-Processed Wide Band Gap Mixed-Halide Perovskite Solar Cells

AU - Longo, Giulia

AU - Momblona, Cristina

AU - La-Placa, Maria Grazia

AU - Gil-Escrig, Lidón

AU - Sessolo, Michele

AU - Bolink, Henk J.

N1 - We are grateful to Novaled GmbH, for the supply of the organic charge-transport materials and dopants. We further acknowledge financial support from the European Union H2020 project INFORM (grant 675867), the Spanish Ministry of Economy and Competitiveness (MINECO) via the Unidad de Excelencia María de Maeztu MDM-2015-0538, MAT2017-88821-R, and PCIN-2015-255, and the Generalitat Valenciana (Prometeo/2016/135). C.M. and M.S. thank the MINECO for their pre- and postdoctoral (JdC) contracts. M.-G.L.-P. acknowledges the support of the Grisolia grant from the Generalitat Valenciana.

PY - 2018/1/12

Y1 - 2018/1/12

N2 - 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.

AB - 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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JO - ACS Energy Letters

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

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