Inside Perovskites: Quantum Luminescence from Bulk Cs4PbBr6 Single Crystals

Michele De Bastiani; Ibrahim Dursun; Yuhai Zhang; Buthainah A. Alshankiti; Xiao He Miao; Jun Yin; Emre Yengel; Erkki Alarousu; Bekir Turedi; Jawaher M. Almutlaq; Makhsud I. Saidaminov; Somak Mitra; Issam Gereige; Ahmed Alsaggaf; Yihan Zhu; Yu Han; Iman S. Roqan; Jean Luc Bredas; Omar F. Mohammed; Osman M. Bakr

doi:10.1021/acs.chemmater.7b02415

Inside Perovskites: Quantum Luminescence from Bulk Cs₄PbBr₆ Single Crystals

Michele De Bastiani, Ibrahim Dursun, Yuhai Zhang, Buthainah A. Alshankiti, Xiao He Miao, Jun Yin, Emre Yengel, Erkki Alarousu, Bekir Turedi, Jawaher M. Almutlaq, Makhsud I. Saidaminov, Somak Mitra, Issam Gereige, Ahmed Alsaggaf, Yihan Zhu, Yu Han, Iman S. Roqan, Jean Luc Bredas, Omar F. Mohammed, Osman M. Bakr

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190 Scopus citations

Abstract

Zero-dimensional perovskite-related structures (0D-PRS) are a new frontier of perovskite-based materials. 0D-PRS, commonly synthesized in powder form, manifest distinctive optical properties such as strong photoluminescence (PL), narrow emission line width, and high exciton binding energy. These properties make 0D-PRS compelling for several types of optoelectronic applications, including phosphor screens and electroluminescent devices. However, it would not be possible to rationally design the chemistry and structure of these materials, without revealing the origins of their optical behavior, which is contradictory to the well-studied APbX₃ perovskites. In this work, we synthesize single crystals of Cs₄PbBr₆ 0D-PRS, and investigated the origins of their unique optical and electronic properties. The crystals exhibit a PL quantum yield higher than 40%, the highest reported for perovskite-based single crystals. Time-resolved and temperature dependent PL studies, supported by DFT calculations, and structural analysis, elucidate an emissive behavior reminiscent of a quantum confined structure rather than a typical bulk perovskite material.

Original language	English (US)
Pages (from-to)	7108-7113
Number of pages	6
Journal	Chemistry of Materials
Volume	29
Issue number	17
DOIs	https://doi.org/10.1021/acs.chemmater.7b02415
State	Published - Sep 12 2017
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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10.1021/acs.chemmater.7b02415

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De Bastiani, M., Dursun, I., Zhang, Y., Alshankiti, B. A., Miao, X. H., Yin, J., Yengel, E., Alarousu, E., Turedi, B., Almutlaq, J. M., Saidaminov, M. I., Mitra, S., Gereige, I., Alsaggaf, A., Zhu, Y., Han, Y., Roqan, I. S., Bredas, J. L., Mohammed, O. F., & Bakr, O. M. (2017). Inside Perovskites: Quantum Luminescence from Bulk Cs₄PbBr₆ Single Crystals. Chemistry of Materials, 29(17), 7108-7113. https://doi.org/10.1021/acs.chemmater.7b02415

De Bastiani, M, Dursun, I, Zhang, Y, Alshankiti, BA, Miao, XH, Yin, J, Yengel, E, Alarousu, E, Turedi, B, Almutlaq, JM, Saidaminov, MI, Mitra, S, Gereige, I, Alsaggaf, A, Zhu, Y, Han, Y, Roqan, IS, Bredas, JL, Mohammed, OF & Bakr, OM 2017, 'Inside Perovskites: Quantum Luminescence from Bulk Cs₄PbBr₆ Single Crystals', Chemistry of Materials, vol. 29, no. 17, pp. 7108-7113. https://doi.org/10.1021/acs.chemmater.7b02415

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title = "Inside Perovskites: Quantum Luminescence from Bulk Cs4PbBr6 Single Crystals",

abstract = "Zero-dimensional perovskite-related structures (0D-PRS) are a new frontier of perovskite-based materials. 0D-PRS, commonly synthesized in powder form, manifest distinctive optical properties such as strong photoluminescence (PL), narrow emission line width, and high exciton binding energy. These properties make 0D-PRS compelling for several types of optoelectronic applications, including phosphor screens and electroluminescent devices. However, it would not be possible to rationally design the chemistry and structure of these materials, without revealing the origins of their optical behavior, which is contradictory to the well-studied APbX3 perovskites. In this work, we synthesize single crystals of Cs4PbBr6 0D-PRS, and investigated the origins of their unique optical and electronic properties. The crystals exhibit a PL quantum yield higher than 40%, the highest reported for perovskite-based single crystals. Time-resolved and temperature dependent PL studies, supported by DFT calculations, and structural analysis, elucidate an emissive behavior reminiscent of a quantum confined structure rather than a typical bulk perovskite material.",

author = "{De Bastiani}, Michele and Ibrahim Dursun and Yuhai Zhang and Alshankiti, {Buthainah A.} and Miao, {Xiao He} and Jun Yin and Emre Yengel and Erkki Alarousu and Bekir Turedi and Almutlaq, {Jawaher M.} and Saidaminov, {Makhsud I.} and Somak Mitra and Issam Gereige and Ahmed Alsaggaf and Yihan Zhu and Yu Han and Roqan, {Iman S.} and Bredas, {Jean Luc} and Mohammed, {Omar F.} and Bakr, {Osman M.}",

note = "Funding Information: The authors acknowledge the financial support of KAUST and Saudi Aramco (Grant RGC/3/3095-01). Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

month = sep,

day = "12",

doi = "10.1021/acs.chemmater.7b02415",

language = "English (US)",

volume = "29",

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T2 - Quantum Luminescence from Bulk Cs4PbBr6 Single Crystals

AU - De Bastiani, Michele

AU - Dursun, Ibrahim

AU - Zhang, Yuhai

AU - Alshankiti, Buthainah A.

AU - Miao, Xiao He

AU - Yin, Jun

AU - Yengel, Emre

AU - Alarousu, Erkki

AU - Turedi, Bekir

AU - Almutlaq, Jawaher M.

AU - Saidaminov, Makhsud I.

AU - Mitra, Somak

AU - Gereige, Issam

AU - Alsaggaf, Ahmed

AU - Zhu, Yihan

AU - Han, Yu

AU - Roqan, Iman S.

AU - Bredas, Jean Luc

AU - Mohammed, Omar F.

AU - Bakr, Osman M.

PY - 2017/9/12

Y1 - 2017/9/12

N2 - Zero-dimensional perovskite-related structures (0D-PRS) are a new frontier of perovskite-based materials. 0D-PRS, commonly synthesized in powder form, manifest distinctive optical properties such as strong photoluminescence (PL), narrow emission line width, and high exciton binding energy. These properties make 0D-PRS compelling for several types of optoelectronic applications, including phosphor screens and electroluminescent devices. However, it would not be possible to rationally design the chemistry and structure of these materials, without revealing the origins of their optical behavior, which is contradictory to the well-studied APbX3 perovskites. In this work, we synthesize single crystals of Cs4PbBr6 0D-PRS, and investigated the origins of their unique optical and electronic properties. The crystals exhibit a PL quantum yield higher than 40%, the highest reported for perovskite-based single crystals. Time-resolved and temperature dependent PL studies, supported by DFT calculations, and structural analysis, elucidate an emissive behavior reminiscent of a quantum confined structure rather than a typical bulk perovskite material.

AB - Zero-dimensional perovskite-related structures (0D-PRS) are a new frontier of perovskite-based materials. 0D-PRS, commonly synthesized in powder form, manifest distinctive optical properties such as strong photoluminescence (PL), narrow emission line width, and high exciton binding energy. These properties make 0D-PRS compelling for several types of optoelectronic applications, including phosphor screens and electroluminescent devices. However, it would not be possible to rationally design the chemistry and structure of these materials, without revealing the origins of their optical behavior, which is contradictory to the well-studied APbX3 perovskites. In this work, we synthesize single crystals of Cs4PbBr6 0D-PRS, and investigated the origins of their unique optical and electronic properties. The crystals exhibit a PL quantum yield higher than 40%, the highest reported for perovskite-based single crystals. Time-resolved and temperature dependent PL studies, supported by DFT calculations, and structural analysis, elucidate an emissive behavior reminiscent of a quantum confined structure rather than a typical bulk perovskite material.

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Inside Perovskites: Quantum Luminescence from Bulk Cs₄PbBr₆ Single Crystals

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