Zero-dimensional Cs4EuX6 (X = Br, I) all-inorganic perovskite single crystals for gamma-ray spectroscopy
Abstract
Organic–inorganic and all-inorganic halide perovskites have become leading candidates toward high-performance optoelectronic devices and radiation detectors. In this work, we report novel zero-dimensional Cs4EuX6 (X = Br, I) perovskite single crystals as self-activated scintillators with superior performance for gamma-ray spectroscopy. Both Cs4EuBr6 and Cs4EuI6 single crystals grown by the Bridgman method were determined to have the trigonal crystal structure with the R$$\bar{3}$$c space group, and have a melting point of approximately 540°C. Cs4EuBr6 and Cs4EuI6 exhibit blue emission under UV excitation and high light yields of 78,000 ± 4000 photons/MeV and 53,000 ± 3000 photons/MeV under 137Cs gamma-ray irradiation, respectively. In particular, the former represents the best result achieved for self-activated scintillators thus far. Thermally stimulated luminescence studies and density functional theory calculations elucidate the correlation between halogen vacancies and long-lived emission (afterglow) at room temperature in Cs4EuX6 (X=Br, I) single crystals. In conclusion, our findings not only demonstrate the high gamma-ray detection efficiency in Cs4EuX6 (X=Br, I), but will further promote the development of 0D metal halide-based novel luminescent and radiation detection materials.
- Authors:
-
[1];
[2];
[3];
[4];
[5];
[6];
- Univ. of Tennessee, Knoxville, TN (United States). Scintillation Materials Research Center; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
- East China Normal Univ. (ECNU), Shanghai (China). Key Lab. of Polar Materials and Devices (Ministry of Education); East China Normal Univ. (ECNU), Shanghai (China). Dept. of Physics; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division
- Beihang Univ., Beijing (China). Key Lab. of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education), Dept. of Physics
- East China Normal Univ. (ECNU), Shanghai (China). Key Lab. of Polar Materials and Devices (Ministry of Education)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
- Univ. of Tennessee, Knoxville, TN (United States). Scintillation Materials Research Center; Univ. of Tennessee, Knoxville, TN (United States). Bredesen Center for Interdisciplinary Research and Graduate Education
- Univ. of Tennessee, Knoxville, TN (United States). Scintillation Materials Research Center
- Univ. of Tennessee, Knoxville, TN (United States). Scintillation Materials Research Center; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering; Univ. of Tennessee, Knoxville, TN (United States). Bredesen Center for Interdisciplinary Research and Graduate Education; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Nuclear Engineering
- 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:
- 1459274
- Alternate Identifier(s):
- OSTI ID: 1455088
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Materials Chemistry C
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 25; Journal ID: ISSN 2050-7526
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Perovskites; zero-dimensional; radiation detection; scintillators
Citation Formats
Wu, Yuntao, Han, Dan, Chakoumakos, Bryan C., Shi, Hongliang, Chen, Shiyou, Du, Mao-Hua, Greeley, Ian, Loyd, Matthew, Rutstrom, Daniel J., Stand, Luis, Koschan, Merry, and Melcher, Charles L. Zero-dimensional Cs4EuX6 (X = Br, I) all-inorganic perovskite single crystals for gamma-ray spectroscopy. United States: N. p., 2018.
Web. doi:10.1039/C8TC01458B.
Wu, Yuntao, Han, Dan, Chakoumakos, Bryan C., Shi, Hongliang, Chen, Shiyou, Du, Mao-Hua, Greeley, Ian, Loyd, Matthew, Rutstrom, Daniel J., Stand, Luis, Koschan, Merry, & Melcher, Charles L. Zero-dimensional Cs4EuX6 (X = Br, I) all-inorganic perovskite single crystals for gamma-ray spectroscopy. United States. https://doi.org/10.1039/C8TC01458B
Wu, Yuntao, Han, Dan, Chakoumakos, Bryan C., Shi, Hongliang, Chen, Shiyou, Du, Mao-Hua, Greeley, Ian, Loyd, Matthew, Rutstrom, Daniel J., Stand, Luis, Koschan, Merry, and Melcher, Charles L. Fri .
"Zero-dimensional Cs4EuX6 (X = Br, I) all-inorganic perovskite single crystals for gamma-ray spectroscopy". United States. https://doi.org/10.1039/C8TC01458B. https://www.osti.gov/servlets/purl/1459274.
@article{osti_1459274,
title = {Zero-dimensional Cs4EuX6 (X = Br, I) all-inorganic perovskite single crystals for gamma-ray spectroscopy},
author = {Wu, Yuntao and Han, Dan and Chakoumakos, Bryan C. and Shi, Hongliang and Chen, Shiyou and Du, Mao-Hua and Greeley, Ian and Loyd, Matthew and Rutstrom, Daniel J. and Stand, Luis and Koschan, Merry and Melcher, Charles L.},
abstractNote = {Organic–inorganic and all-inorganic halide perovskites have become leading candidates toward high-performance optoelectronic devices and radiation detectors. In this work, we report novel zero-dimensional Cs4EuX6 (X = Br, I) perovskite single crystals as self-activated scintillators with superior performance for gamma-ray spectroscopy. Both Cs4EuBr6 and Cs4EuI6 single crystals grown by the Bridgman method were determined to have the trigonal crystal structure with the R$\bar{3}$c space group, and have a melting point of approximately 540°C. Cs4EuBr6 and Cs4EuI6 exhibit blue emission under UV excitation and high light yields of 78,000 ± 4000 photons/MeV and 53,000 ± 3000 photons/MeV under 137Cs gamma-ray irradiation, respectively. In particular, the former represents the best result achieved for self-activated scintillators thus far. Thermally stimulated luminescence studies and density functional theory calculations elucidate the correlation between halogen vacancies and long-lived emission (afterglow) at room temperature in Cs4EuX6 (X=Br, I) single crystals. In conclusion, our findings not only demonstrate the high gamma-ray detection efficiency in Cs4EuX6 (X=Br, I), but will further promote the development of 0D metal halide-based novel luminescent and radiation detection materials.},
doi = {10.1039/C8TC01458B},
journal = {Journal of Materials Chemistry C},
number = 25,
volume = 6,
place = {United States},
year = {Fri Jun 15 00:00:00 EDT 2018},
month = {Fri Jun 15 00:00:00 EDT 2018}
}
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Figures / Tables:
Figure 1: (a) A 12-mm diameter as-grown Cs4EuBr6 single crystal. (b) A 7-mm diameter as-grown Cs4EuI6 single crystal and (c) a 1-mm thick Cs4EuI6 slab. (d) Optical transmission spectra of 1 mm thick Cs4EuBr6 and Cs4EuI6 crystal slabs. (e) Differential scanning calorimeter curves of Cs4EuBr6 and Cs4EuI6 single crystals. (f)more »
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Eu 2+ : A suitable substituent for Pb 2+ in CsPbX 3 perovskite nanocrystals?
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