CsPbBr3 perovskite detectors with 1.4% energy resolution for high-energy γ-rays

Yihui He; Matthew Petryk; Zhifu Liu; Daniel G. Chica; Ido Hadar; Charles Leak; Weijun Ke; Ioannis Spanopoulos; Wenwen Lin; Duck Young Chung; Bruce W. Wessels; Zhong He; Mercouri G. Kanatzidis

doi:10.1038/s41566-020-00727-1

CsPbBr₃ perovskite detectors with 1.4% energy resolution for high-energy γ-rays

Yihui He, Matthew Petryk, Zhifu Liu, Daniel G. Chica, Ido Hadar, Charles Leak, Weijun Ke, Ioannis Spanopoulos, Wenwen Lin, Duck Young Chung, Bruce W. Wessels, Zhong He, Mercouri G. Kanatzidis^*

^*Corresponding author for this work

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

230 Scopus citations

Abstract

Halide perovskite semiconductors are poised to revitalize the field of ionizing radiation detection as they have done to solar photovoltaics. We show that all-inorganic perovskite CsPbBr₃ devices resolve ¹³⁷Cs 662-keV γ-rays with 1.4% energy resolution, as well as other X- and γ-rays with energies ranging from tens of keV to over 1 MeV in ambipolar sensing and unipolar hole-only sensing modes with crystal volumes of 6.65 mm³ and 297 mm³, respectively. We report the scale-up of CsPbBr₃ ingots to up to 1.5 inches in diameter with an excellent hole mobility–lifetime product of 8 × 10⁻³ cm² V⁻¹ and a long hole lifetime of up to 296 μs. CsPbBr₃ detectors demonstrate a wide temperature region from ~2 °C to ~70 °C for stable operation. Detectors protected with suitable encapsulants show a uniform response for over 18 months. Consequently, we identify perovskite CsPbBr₃ semiconductor as an exceptional candidate for new-generation high-energy γ-ray detection.

Original language	English
Pages (from-to)	36-42
Number of pages	7
Journal	Nature Photonics
Volume	15
Issue number	1
DOIs	https://doi.org/10.1038/s41566-020-00727-1
State	Published - Jan 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020, The Author(s), under exclusive licence to Springer Nature Limited.

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10.1038/s41566-020-00727-1

Cite this

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title = "CsPbBr3 perovskite detectors with 1.4% energy resolution for high-energy γ-rays",

abstract = "Halide perovskite semiconductors are poised to revitalize the field of ionizing radiation detection as they have done to solar photovoltaics. We show that all-inorganic perovskite CsPbBr3 devices resolve 137Cs 662-keV γ-rays with 1.4% energy resolution, as well as other X- and γ-rays with energies ranging from tens of keV to over 1 MeV in ambipolar sensing and unipolar hole-only sensing modes with crystal volumes of 6.65 mm3 and 297 mm3, respectively. We report the scale-up of CsPbBr3 ingots to up to 1.5 inches in diameter with an excellent hole mobility–lifetime product of 8 × 10−3 cm2 V−1 and a long hole lifetime of up to 296 μs. CsPbBr3 detectors demonstrate a wide temperature region from ~2 °C to ~70 °C for stable operation. Detectors protected with suitable encapsulants show a uniform response for over 18 months. Consequently, we identify perovskite CsPbBr3 semiconductor as an exceptional candidate for new-generation high-energy γ-ray detection.",

author = "Yihui He and Matthew Petryk and Zhifu Liu and Chica, {Daniel G.} and Ido Hadar and Charles Leak and Weijun Ke and Ioannis Spanopoulos and Wenwen Lin and Chung, {Duck Young} and Wessels, {Bruce W.} and Zhong He and Kanatzidis, {Mercouri G.}",

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AU - He, Yihui

AU - Petryk, Matthew

AU - Liu, Zhifu

AU - Chica, Daniel G.

AU - Hadar, Ido

AU - Leak, Charles

AU - Ke, Weijun

AU - Spanopoulos, Ioannis

AU - Lin, Wenwen

AU - Chung, Duck Young

AU - Wessels, Bruce W.

AU - He, Zhong

AU - Kanatzidis, Mercouri G.

PY - 2021/1

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N2 - Halide perovskite semiconductors are poised to revitalize the field of ionizing radiation detection as they have done to solar photovoltaics. We show that all-inorganic perovskite CsPbBr3 devices resolve 137Cs 662-keV γ-rays with 1.4% energy resolution, as well as other X- and γ-rays with energies ranging from tens of keV to over 1 MeV in ambipolar sensing and unipolar hole-only sensing modes with crystal volumes of 6.65 mm3 and 297 mm3, respectively. We report the scale-up of CsPbBr3 ingots to up to 1.5 inches in diameter with an excellent hole mobility–lifetime product of 8 × 10−3 cm2 V−1 and a long hole lifetime of up to 296 μs. CsPbBr3 detectors demonstrate a wide temperature region from ~2 °C to ~70 °C for stable operation. Detectors protected with suitable encapsulants show a uniform response for over 18 months. Consequently, we identify perovskite CsPbBr3 semiconductor as an exceptional candidate for new-generation high-energy γ-ray detection.

AB - Halide perovskite semiconductors are poised to revitalize the field of ionizing radiation detection as they have done to solar photovoltaics. We show that all-inorganic perovskite CsPbBr3 devices resolve 137Cs 662-keV γ-rays with 1.4% energy resolution, as well as other X- and γ-rays with energies ranging from tens of keV to over 1 MeV in ambipolar sensing and unipolar hole-only sensing modes with crystal volumes of 6.65 mm3 and 297 mm3, respectively. We report the scale-up of CsPbBr3 ingots to up to 1.5 inches in diameter with an excellent hole mobility–lifetime product of 8 × 10−3 cm2 V−1 and a long hole lifetime of up to 296 μs. CsPbBr3 detectors demonstrate a wide temperature region from ~2 °C to ~70 °C for stable operation. Detectors protected with suitable encapsulants show a uniform response for over 18 months. Consequently, we identify perovskite CsPbBr3 semiconductor as an exceptional candidate for new-generation high-energy γ-ray detection.

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