Bulk Assembly of Corrugated 1D Metal Halides with Broadband Yellow Emission

Haoran Lin; Chenkun Zhou; Jennifer Neu; Yan Zhou; Dan Han; Shiyou Chen; Michael Worku; Maya Chaaban; Sujin Lee; Ella Berkwits; Theo Siegrist; Mao Hua Du; Biwu Ma

doi:10.1002/adom.201801474

Bulk Assembly of Corrugated 1D Metal Halides with Broadband Yellow Emission

Haoran Lin, Chenkun Zhou, Jennifer Neu, Yan Zhou, Dan Han, Shiyou Chen, Michael Worku, Maya Chaaban, Sujin Lee, Ella Berkwits, Theo Siegrist, Mao Hua Du, Biwu Ma

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

70 Scopus citations

Abstract

The family of molecular level low-dimensional organic metal halide hybrids has expanded significantly over the last few years. Here a new type of 1D metal halide structure is reported, in which metal halide octahedra form a corrugated double-chain structure via nonplanar edge-sharing. This material with a chemical formula of C ₅ H ₁₆ N ₂ Pb ₂ Br ₆ exhibits a broadband yellow emission under ultraviolet light excitation with a photoluminescence quantum efficiency of around 10%. The light-yellow emission is considered to be attributed to self-trapping excitons. Theoretical calculations show that the unique alignment of the octahedra leads to small band dispersion and large exciton binding energy. Together with previously reported 1D metal halide wires and tubes, this new bulk assembly of 1D metal halides suggests the potential to develop a library of bulk assemblies of metal halides with controlled structures and compositions.

Original language	English
Article number	1801474
Journal	Advanced Optical Materials
Volume	7
Issue number	6
DOIs	https://doi.org/10.1002/adom.201801474
State	Published - Mar 19 2019
Externally published	Yes

Funding

The authors acknowledge the support from the National Science Foundation (DMR-1709116) and the Air Force Office of Scientific Research (AFOSR) (17RT0906). J.N. and T.S. acknowledge funding from the National Science Foundation under grant DMR-606952. Part of the work was carried out at the National High Magnetic Field Laboratory, which was funded by the National Science Foundation under DMR-1644779 and the State of Florida. The work at Oak Ridge National Laboratory (ORNL) was supported by the U. S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences, and Engineering Division. D.H. and S.C. were supported by National Natural Science Foundation of China (NSFC) under Grant Nos. 61574059 and 61722402, Shu-Guang program (15SG20). The authors thank Dr. Kenneth Hanson at FSU for the access to a spectrophotometer.

Funders	Funder number
Materials Sciences
Shu-Guang program	15SG20
State of Florida
U. S. Department of Energy
National Science Foundation	DMR-1709116, 1709116
U.S. Department of Energy
Air Force Office of Scientific Research	17RT0906, DMR-1644779, DMR-606952
Office of Science
Basic Energy Sciences
Oak Ridge National Laboratory
Division of Materials Sciences and Engineering
Fayetteville State University
National Natural Science Foundation of China	61722402, 61574059

Keywords

1D structures
exciton self-trapping
organic metal halide hybrids
photoluminescence
quantum confinement effect

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10.1002/adom.201801474

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title = "Bulk Assembly of Corrugated 1D Metal Halides with Broadband Yellow Emission",

abstract = " The family of molecular level low-dimensional organic metal halide hybrids has expanded significantly over the last few years. Here a new type of 1D metal halide structure is reported, in which metal halide octahedra form a corrugated double-chain structure via nonplanar edge-sharing. This material with a chemical formula of C 5 H 16 N 2 Pb 2 Br 6 exhibits a broadband yellow emission under ultraviolet light excitation with a photoluminescence quantum efficiency of around 10%. The light-yellow emission is considered to be attributed to self-trapping excitons. Theoretical calculations show that the unique alignment of the octahedra leads to small band dispersion and large exciton binding energy. Together with previously reported 1D metal halide wires and tubes, this new bulk assembly of 1D metal halides suggests the potential to develop a library of bulk assemblies of metal halides with controlled structures and compositions.",

keywords = "1D structures, exciton self-trapping, organic metal halide hybrids, photoluminescence, quantum confinement effect",

author = "Haoran Lin and Chenkun Zhou and Jennifer Neu and Yan Zhou and Dan Han and Shiyou Chen and Michael Worku and Maya Chaaban and Sujin Lee and Ella Berkwits and Theo Siegrist and Du, {Mao Hua} and Biwu Ma",

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AU - Lin, Haoran

AU - Zhou, Chenkun

AU - Neu, Jennifer

AU - Zhou, Yan

AU - Han, Dan

AU - Chen, Shiyou

AU - Worku, Michael

AU - Chaaban, Maya

AU - Lee, Sujin

AU - Berkwits, Ella

AU - Siegrist, Theo

AU - Du, Mao Hua

AU - Ma, Biwu

PY - 2019/3/19

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N2 - The family of molecular level low-dimensional organic metal halide hybrids has expanded significantly over the last few years. Here a new type of 1D metal halide structure is reported, in which metal halide octahedra form a corrugated double-chain structure via nonplanar edge-sharing. This material with a chemical formula of C 5 H 16 N 2 Pb 2 Br 6 exhibits a broadband yellow emission under ultraviolet light excitation with a photoluminescence quantum efficiency of around 10%. The light-yellow emission is considered to be attributed to self-trapping excitons. Theoretical calculations show that the unique alignment of the octahedra leads to small band dispersion and large exciton binding energy. Together with previously reported 1D metal halide wires and tubes, this new bulk assembly of 1D metal halides suggests the potential to develop a library of bulk assemblies of metal halides with controlled structures and compositions.

AB - The family of molecular level low-dimensional organic metal halide hybrids has expanded significantly over the last few years. Here a new type of 1D metal halide structure is reported, in which metal halide octahedra form a corrugated double-chain structure via nonplanar edge-sharing. This material with a chemical formula of C 5 H 16 N 2 Pb 2 Br 6 exhibits a broadband yellow emission under ultraviolet light excitation with a photoluminescence quantum efficiency of around 10%. The light-yellow emission is considered to be attributed to self-trapping excitons. Theoretical calculations show that the unique alignment of the octahedra leads to small band dispersion and large exciton binding energy. Together with previously reported 1D metal halide wires and tubes, this new bulk assembly of 1D metal halides suggests the potential to develop a library of bulk assemblies of metal halides with controlled structures and compositions.

KW - 1D structures

KW - exciton self-trapping

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Bulk Assembly of Corrugated 1D Metal Halides with Broadband Yellow Emission

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