Woodruff School of Mechanical Engineering

NRE/MP Seminar

Nuclear & Radiological Engineering and Medical Physics Programs

Title:

Radiation Detection using Perovskites from Materials to Devices

Speaker:

Prof. Paul Sellin

Affiliation:

University of Surrey UK, Physics

When:

Tuesday, September 13, 2022 at 11:00:00 AM   Add to Calendar

Where:

Boggs Building, Room 3-47

Host:

Dr. Nolan Hertel
nolan.hertel@me.gatech.edu
404-894-6316

Abstract

Perovskites are a fascinating and varied class of materials that have recently been applied for use as sensor for ionising radiation. Having been widely developed by the PV and solid-state lighting communities, perovskites have many electronic and optical properties that make them very well suited for use as radiation detectors. Of particular interest are lead halide perovskites where the presence of high‐Z atoms such as Cs and Pb provides good X‐ray and gamma ray efficiency, combined with good charge transport, and/or scintillation properties. In this talk I will present an overview of the latest results from my group on perovskite radiation detectors, including both direct detection with single crystal and polycrystalline lead halide materials, and next generation radiation scintillators using various double perovskite materials.


Biography

Paul Sellin is a Professor of Physics at the University of Surrey (UK) specializing in the development of new materials for radiation detection. He has worked for more than 30 years in this field, initially concentrating on the development of wide bandgap semiconductors such as CdTe, CZT, SiC, and diamond for use as radiation sensors. His group is now focused on the synthesis and characterization of metal halide and ‘lead free’ double perovskite materials for use as radiation detectors, both as direct charge-based detectors and as perovskite scintillators.