Improved Radiation Sensing with Methylammonium Lead Bromide Perovskite Semiconductors

  • Ryan Tan
  • , Bogdan Dryzhakov
  • , Andrew Shayotovich
  • , Andrew Naylor
  • , Kate Higgins
  • , Jessica Charest
  • , Bin Hu
  • , Mahshid Ahmadi
  • , Eric Lukosi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Methylammonium lead bromide (CH3NH3PbBr3 or MAPB) perovskite semiconductors are a potential low-cost option for high energy resolution semiconductor detectors for gamma and neutron sensing. MAPB has recently been demonstrated for its ability to sense alpha particles and neutrons, and pertinent electronic properties have previously been reported. In this presentation, we report on several techniques of improving detector performance to achieve better spectroscopic performance for gamma sensing. These methods include anion and partial cation substitutions of MAPB to improve carrier transport and limit ionic conductivity and several surface treatment and metallization techniques for improved carrier extraction and minimization of device polarization.

Original languageEnglish
Title of host publication2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728141640
DOIs
StatePublished - Oct 2019
Externally publishedYes
Event2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019 - Manchester, United Kingdom
Duration: Oct 26 2019Nov 2 2019

Publication series

Name2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019

Conference

Conference2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019
Country/TerritoryUnited Kingdom
CityManchester
Period10/26/1911/2/19

Funding

Manuscript received December 16, 2019. Part of this work was conducted in the Micro-Processing Research Facility, a University of Tennessee Core Facility. This material is based upon work supported by the U.S. Department of Homeland Security under grant no. 2016-DN-077-ARI01. Disclaimer: The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Department of Homeland Security.

Keywords

  • Gamma detection
  • MAPB
  • MAPBbBr
  • Perovskite

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