Heavy metal ternary halides for room-temperature x-ray and gamma-ray detection

Zhifu Liu; John A. Peters; Constantinos C. Stoumpos; Maria Sebastian; Bruce W. Wessels; Jino Im; Arthur J. Freeman; Mercouri G. Kanatzidis

doi:10.1117/12.2022877

Heavy metal ternary halides for room-temperature x-ray and gamma-ray detection

Zhifu Liu, John A. Peters, Constantinos C. Stoumpos, Maria Sebastian, Bruce W. Wessels, Jino Im, Arthur J. Freeman, Mercouri G. Kanatzidis

Northwestern University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

20 Citations (Scopus)

Abstract

We report our recent progress on wide bandgap ternary halide compounds CsPbBr3 and CsPbCl3 for room temperature x-ray and gamma-ray detectors. Their bandgaps are measured to be 2.24 eV and 2.86 eV, respectively. The measured mobility-lifetime products of CsPbBr3 are 1.7×10-3, 1.3×10-3 cm2/V, for electron and hole carriers, respectively, comparable to those of CdTe. We measured the room temperature spectral response of CsPbBr3 sample to Ag x-ray radiation. It has a well-resolved spectral response to the 22.4 keV Kα radiation peak and detector efficiency comparable to that of CdZnTe detector at 295 K.

Original language	English
Title of host publication	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV
DOIs	https://doi.org/10.1117/12.2022877
Publication status	Published - Nov 8 2013
Event	SPIE Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XV - San Diego, CA, United States Duration: Aug 26 2013 → Aug 28 2013

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	8852
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	SPIE Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XV
Country	United States
City	San Diego, CA
Period	8/26/13 → 8/28/13

Keywords

Cs-compound
photoconductivity
wide gap semiconductor
x-ray detector

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.2022877

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Liu, Z., Peters, J. A., Stoumpos, C. C., Sebastian, M., Wessels, B. W., Im, J., Freeman, A. J., & Kanatzidis, M. G. (2013). Heavy metal ternary halides for room-temperature x-ray and gamma-ray detection. In Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV [88520A] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8852). https://doi.org/10.1117/12.2022877

Heavy metal ternary halides for room-temperature x-ray and gamma-ray detection. / Liu, Zhifu; Peters, John A.; Stoumpos, Constantinos C.; Sebastian, Maria; Wessels, Bruce W.; Im, Jino; Freeman, Arthur J.; Kanatzidis, Mercouri G.

Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV. 2013. 88520A (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8852).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Liu, Z, Peters, JA, Stoumpos, CC, Sebastian, M, Wessels, BW, Im, J, Freeman, AJ & Kanatzidis, MG 2013, Heavy metal ternary halides for room-temperature x-ray and gamma-ray detection. in Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV., 88520A, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8852, SPIE Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XV, San Diego, CA, United States, 8/26/13. https://doi.org/10.1117/12.2022877

Liu, Zhifu ; Peters, John A. ; Stoumpos, Constantinos C. ; Sebastian, Maria ; Wessels, Bruce W. ; Im, Jino ; Freeman, Arthur J. ; Kanatzidis, Mercouri G. / Heavy metal ternary halides for room-temperature x-ray and gamma-ray detection. Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV. 2013. (Proceedings of SPIE - The International Society for Optical Engineering).

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abstract = "We report our recent progress on wide bandgap ternary halide compounds CsPbBr3 and CsPbCl3 for room temperature x-ray and gamma-ray detectors. Their bandgaps are measured to be 2.24 eV and 2.86 eV, respectively. The measured mobility-lifetime products of CsPbBr3 are 1.7×10-3, 1.3×10-3 cm2/V, for electron and hole carriers, respectively, comparable to those of CdTe. We measured the room temperature spectral response of CsPbBr3 sample to Ag x-ray radiation. It has a well-resolved spectral response to the 22.4 keV Kα radiation peak and detector efficiency comparable to that of CdZnTe detector at 295 K.",

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AU - Im, Jino

AU - Freeman, Arthur J.

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AB - We report our recent progress on wide bandgap ternary halide compounds CsPbBr3 and CsPbCl3 for room temperature x-ray and gamma-ray detectors. Their bandgaps are measured to be 2.24 eV and 2.86 eV, respectively. The measured mobility-lifetime products of CsPbBr3 are 1.7×10-3, 1.3×10-3 cm2/V, for electron and hole carriers, respectively, comparable to those of CdTe. We measured the room temperature spectral response of CsPbBr3 sample to Ag x-ray radiation. It has a well-resolved spectral response to the 22.4 keV Kα radiation peak and detector efficiency comparable to that of CdZnTe detector at 295 K.

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