Noise spectroscopy study of methylammonium lead tribromide single-crystal detectors: Gamma-ray spectroscopy applications

Baussens, Oriane; Montémont, G.; Verilhac, Jean‐Marie; Hirsch, Lionel; Gros-Daillon, Eric

doi:10.1016/j.nima.2022.166904

Cited by 2 publications

(4 citation statements)

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“…1,2 Semiconductors containing elements with a high atomic number that have a large mobility−lifetime product and high resistivity can detect gamma-ray photons at room temperature. 3,4 Generally, high-purity semiconductors, including expensive CdTe and CdZnTe single crystals, have been applied in gamma-ray detectors. 5−10 Recently, lead halide perovskite single crystals (LHPSCs) MAPbX 3 (MA = CH 3 NH 3 ) have been considered as the nextgeneration room-temperature semiconductors for gamma-ray detection.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Gamma-ray detection has been widely used in nuclear monitoring, medical inspection, and scientific research. , Semiconductors containing elements with a high atomic number that have a large mobility–lifetime product and high resistivity can detect gamma-ray photons at room temperature. , Generally, high-purity semiconductors, including expensive CdTe and CdZnTe single crystals, have been applied in gamma-ray detectors. − …”

Section: Introductionmentioning

confidence: 99%

“…3 LHPSC-based NIN photodiodes with a shaping time of 8 μs. Under an external bias of 300 V, our MAPbBr 3 LHPSC-based NIN photodiodes achieve an energy resolution of 10.3% for137 Cs 662 keV gamma-ray photons.…”

mentioning

confidence: 99%

“…3 LHPSC for the first time to resolve 662 keV137 Cs gamma-ray photons. The results obtained for the NIN structure of this LHPSC could also motivate the development of gamma-ray detectors based on other types of MAPbX 3 LHPSCs.…”

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confidence: 99%

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Using N–I–N Photodiodes Made of Perovskite Single Crystals for Low Noise Gamma-Ray Spectroscopy

Wang,

Xu,

Pan

et al. 2024

ACS Appl. Mater. Interfaces

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Solution-processed lead halide perovskite single crystals (LHPSCs) are believed to have great potential in gamma-ray spectroscopy. However, obtaining low-defect LHPSCs from a solution at low temperatures is difficult compared to obtaining Bridgman single crystals such as CdTe and Si. Herein, noise from the intrinsic defects of LHPSCs is considered as the main problem hindering their gamma-ray detection performance. By isolating the defect-induced holes in LHPSCs via energy barriers, we show that NIN photodiodes based on three types of LHPSCs, i.e., MAPbBr 3 (MA = CH 3 NH 3 ), MAPbBr 2.5 Cl 0.5 , and cascade LHPSCs, have demonstrated good energy resolution in the range of 6.7−10.3% for 662 keV 137 Cs gamma-ray photons. The noise for >10 mm 3 devices is low, in the order of 340−860 electrons, and the electron collection efficiency reaches 23−43%. These results pave the way for obtaining low-cost, large, high energy-resolution gamma-ray detectors at room temperature (300 K).

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Section: ■ Introductionmentioning

confidence: 99%