Broadband Emission in Hybrid Organic–Inorganic Halides of Group 12 Metals
Abstract
We report syntheses, crystal and electronic structures, and characterization of three new hybrid organic–inorganic halides (R)ZnBr3(DMSO), (R)2CdBr4·DMSO, and (R)CdI3(DMSO) (where (R) = C6(CH3)5CH2N(CH3)3, and DMSO = dimethyl sulfoxide). The compounds can be conveniently prepared as single crystals and bulk polycrystalline powders using a DMSO–methanol solvent system. On the basis of the single-crystal X-ray diffraction results carried out at room temperature and 100 K, all compounds have zero-dimensional (0D) crystal structures featuring alternating layers of bulky organic cations and molecular inorganic anions based on a tetrahedral coordination around group 12 metal cations. The presence of discrete molecular building blocks in the 0D structures results in localized charges and tunable room-temperature light emission, including white light for (R)ZnBr3(DMSO), bluish-white light for (R)2CdBr4·DMSO, and green for (R)CdI3(DMSO). The highest photoluminescence quantum yield (PLQY) value of 3.07% was measured for (R)ZnBr3(DMSO), which emits cold white light based on the calculated correlated color temperature (CCT) of 11,044 K. All compounds exhibit fast photoluminescence lifetimes on the timescale of tens of nanoseconds, consistent with the fast luminescence decay observed in π-conjugated organic molecules. Temperature dependence photoluminescence study showed the appearance of additional peaks around 550 nm, resulting from the organic salt emission. Density functional theory calculationsmore »
- Authors:
-
- Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, USA
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education), Department of Physics, Beihang University, Beijing 100191, China
- Groupe d’Etudes de la Matière Condensée, UMR CNRS 8653-Université de Versailles Saint Quentin En Yvelines, Université Paris-Saclay, 45 Avenue des États-Unis, 78035 Versailles, France
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1489084
- Alternate Identifier(s):
- OSTI ID: 1490568
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Published Article
- Journal Name:
- ACS Omega
- Additional Journal Information:
- Journal Name: ACS Omega Journal Volume: 3 Journal Issue: 12; Journal ID: ISSN 2470-1343
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Roccanova, Rachel, Houck, Matthew, Yangui, Aymen, Han, Dan, Shi, Hongliang, Wu, Yuntao, Glatzhofer, Daniel T., Powell, Douglas R., Chen, Shiyou, Fourati, Houcem, Lusson, Alain, Boukheddaden, Kamel, Du, Mao-Hua, and Saparov, Bayrammurad. Broadband Emission in Hybrid Organic–Inorganic Halides of Group 12 Metals. United States: N. p., 2018.
Web. doi:10.1021/acsomega.8b02883.
Roccanova, Rachel, Houck, Matthew, Yangui, Aymen, Han, Dan, Shi, Hongliang, Wu, Yuntao, Glatzhofer, Daniel T., Powell, Douglas R., Chen, Shiyou, Fourati, Houcem, Lusson, Alain, Boukheddaden, Kamel, Du, Mao-Hua, & Saparov, Bayrammurad. Broadband Emission in Hybrid Organic–Inorganic Halides of Group 12 Metals. United States. https://doi.org/10.1021/acsomega.8b02883
Roccanova, Rachel, Houck, Matthew, Yangui, Aymen, Han, Dan, Shi, Hongliang, Wu, Yuntao, Glatzhofer, Daniel T., Powell, Douglas R., Chen, Shiyou, Fourati, Houcem, Lusson, Alain, Boukheddaden, Kamel, Du, Mao-Hua, and Saparov, Bayrammurad. Fri .
"Broadband Emission in Hybrid Organic–Inorganic Halides of Group 12 Metals". United States. https://doi.org/10.1021/acsomega.8b02883.
@article{osti_1489084,
title = {Broadband Emission in Hybrid Organic–Inorganic Halides of Group 12 Metals},
author = {Roccanova, Rachel and Houck, Matthew and Yangui, Aymen and Han, Dan and Shi, Hongliang and Wu, Yuntao and Glatzhofer, Daniel T. and Powell, Douglas R. and Chen, Shiyou and Fourati, Houcem and Lusson, Alain and Boukheddaden, Kamel and Du, Mao-Hua and Saparov, Bayrammurad},
abstractNote = {We report syntheses, crystal and electronic structures, and characterization of three new hybrid organic–inorganic halides (R)ZnBr3(DMSO), (R)2CdBr4·DMSO, and (R)CdI3(DMSO) (where (R) = C6(CH3)5CH2N(CH3)3, and DMSO = dimethyl sulfoxide). The compounds can be conveniently prepared as single crystals and bulk polycrystalline powders using a DMSO–methanol solvent system. On the basis of the single-crystal X-ray diffraction results carried out at room temperature and 100 K, all compounds have zero-dimensional (0D) crystal structures featuring alternating layers of bulky organic cations and molecular inorganic anions based on a tetrahedral coordination around group 12 metal cations. The presence of discrete molecular building blocks in the 0D structures results in localized charges and tunable room-temperature light emission, including white light for (R)ZnBr3(DMSO), bluish-white light for (R)2CdBr4·DMSO, and green for (R)CdI3(DMSO). The highest photoluminescence quantum yield (PLQY) value of 3.07% was measured for (R)ZnBr3(DMSO), which emits cold white light based on the calculated correlated color temperature (CCT) of 11,044 K. All compounds exhibit fast photoluminescence lifetimes on the timescale of tens of nanoseconds, consistent with the fast luminescence decay observed in π-conjugated organic molecules. Temperature dependence photoluminescence study showed the appearance of additional peaks around 550 nm, resulting from the organic salt emission. Density functional theory calculations show that the incorporation of both the low-gap aromatic molecule R and the relatively electropositive Zn and Cd metals can lead to exciton localization at the aromatic molecular cations, which act as luminescence centers.},
doi = {10.1021/acsomega.8b02883},
journal = {ACS Omega},
number = 12,
volume = 3,
place = {United States},
year = {Fri Dec 28 00:00:00 EST 2018},
month = {Fri Dec 28 00:00:00 EST 2018}
}
https://doi.org/10.1021/acsomega.8b02883
Web of Science
Figures / Tables:
Works referencing / citing this record:
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