Resolving the Energy of γ-Ray Photons with MAPbI3 Single Crystals

Yihui He, Weijun Ke, Grant C.B. Alexander, Kyle M. McCall, Daniel G. Chica, Zhifu Liu, Ido Hadar, Constantinos C. Stoumpos, Bruce W. Wessels, Mercouri G Kanatzidis

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Halide perovskites exhibit remarkably high-performance as semiconductors compared to conventional materials because of an unusually favorable combination of optoelectronic properties. We demonstrate here that solution-grown single-crystals of organic-inorganic hybrid perovskite CH3NH3PbI3 (MAPbI3), implemented in a Schottky-type device design, can produce outstanding hard radiation detectors with high spectral response and low dark current for the first time. Schottky-type MAPbI3 detector achieves an excellent energy resolution of 6.8% for 57Co 122 keV gamma ray. The high detector performance is achieved due to the balanced charge collection efficiency for both electrons and holes, reflected in the high mobility-lifetime (μτ) products of both carriers (∼0.8 × 10-3 cm2/V). MAPbI3 also demonstrates remarkably long electron and hole lifetimes (τe = 10 μs and τh = 17 μs) and impressive operational stability over time. Furthermore, dual-source detection of α particle (5.5 MeV) and γ-ray (59.5 keV) from the 241Am radiation source is achieved simultaneously by Schottky-type MAPbI3 detector. These results reveal the great potential of MAPbI3 as a high-performance, low-cost radiation detection material.

Original languageEnglish
Pages (from-to)4132-4138
Number of pages7
JournalACS Photonics
Volume5
Issue number10
DOIs
Publication statusPublished - Oct 17 2018

Fingerprint

Photons
rays
Single crystals
Radiation
Detectors
detectors
single crystals
photons
Electrons
Equipment Design
life (durability)
Radiation detectors
Semiconductors
Dark currents
radiation detectors
Gamma Rays
perovskites
dark current
radiation sources
spectral sensitivity

Keywords

  • charge transport
  • hybrid halide perovskite
  • radiation detection
  • semiconductor detector
  • γ-ray spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biotechnology
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

He, Y., Ke, W., Alexander, G. C. B., McCall, K. M., Chica, D. G., Liu, Z., ... Kanatzidis, M. G. (2018). Resolving the Energy of γ-Ray Photons with MAPbI3 Single Crystals. ACS Photonics, 5(10), 4132-4138. https://doi.org/10.1021/acsphotonics.8b00873

Resolving the Energy of γ-Ray Photons with MAPbI3 Single Crystals. / He, Yihui; Ke, Weijun; Alexander, Grant C.B.; McCall, Kyle M.; Chica, Daniel G.; Liu, Zhifu; Hadar, Ido; Stoumpos, Constantinos C.; Wessels, Bruce W.; Kanatzidis, Mercouri G.

In: ACS Photonics, Vol. 5, No. 10, 17.10.2018, p. 4132-4138.

Research output: Contribution to journalArticle

He, Y, Ke, W, Alexander, GCB, McCall, KM, Chica, DG, Liu, Z, Hadar, I, Stoumpos, CC, Wessels, BW & Kanatzidis, MG 2018, 'Resolving the Energy of γ-Ray Photons with MAPbI3 Single Crystals', ACS Photonics, vol. 5, no. 10, pp. 4132-4138. https://doi.org/10.1021/acsphotonics.8b00873
He Y, Ke W, Alexander GCB, McCall KM, Chica DG, Liu Z et al. Resolving the Energy of γ-Ray Photons with MAPbI3 Single Crystals. ACS Photonics. 2018 Oct 17;5(10):4132-4138. https://doi.org/10.1021/acsphotonics.8b00873
He, Yihui ; Ke, Weijun ; Alexander, Grant C.B. ; McCall, Kyle M. ; Chica, Daniel G. ; Liu, Zhifu ; Hadar, Ido ; Stoumpos, Constantinos C. ; Wessels, Bruce W. ; Kanatzidis, Mercouri G. / Resolving the Energy of γ-Ray Photons with MAPbI3 Single Crystals. In: ACS Photonics. 2018 ; Vol. 5, No. 10. pp. 4132-4138.
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