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 | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 8852 |
| DOIs | |
| Publication status | Published - 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 |
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 |
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Keywords
- Cs-compound
- photoconductivity
- wide gap semiconductor
- x-ray detector
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
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.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8852 2013. 88520A.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Heavy metal ternary halides for room-temperature x-ray and gamma-ray detection
AU - Liu, Zhifu
AU - Peters, John A.
AU - Stoumpos, Constantinos C.
AU - Sebastian, Maria
AU - Wessels, Bruce W.
AU - Im, Jino
AU - Freeman, Arthur J
AU - Kanatzidis, Mercouri G
PY - 2013
Y1 - 2013
N2 - 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.
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.
KW - Cs-compound
KW - photoconductivity
KW - wide gap semiconductor
KW - x-ray detector
UR - http://www.scopus.com/inward/record.url?scp=84887011877&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887011877&partnerID=8YFLogxK
U2 - 10.1117/12.2022877
DO - 10.1117/12.2022877
M3 - Conference contribution
SN - 9780819497024
VL - 8852
BT - Proceedings of SPIE - The International Society for Optical Engineering
ER -