Perovskite Quantum-Dot-in-Host for Detection of Ionizing Radiation.
basic_science · Level V
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- Record sourced from PubMed, PMID 32401004.
- Also identified by DOI 10.1021/acsnano.0c02529.
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Abstract
The concept of quantum-dot-in-perovskite solids pioneered by Ning and co-workers introduces a useful class of solution-processed type I heterostructures for optoelectronics applications. Concurrent searches for solution-processable detectors of ionizing radiation have focused on lead-halide perovskites. As described in this issue of <i>ACS Nano</i>, Cao <i>et al</i>. examined CsPbBr<sub>3</sub> nanocrystals imbedded in Cs<sub>4</sub>PbBr<sub>6</sub> as a wider gap host and determined its performance and possibilities as a scintillator for X-ray imaging. In this Perspective, we describe issues and research opportunities on ionizing radiation imaging and spectroscopy based on the CsPbBr<sub>3</sub>@Cs<sub>4</sub>PbBr<sub>6</sub> composite and other perovskite-dot-in-host combinations in which the dot may be of lower dimensionality than 3, and we explore ionizing radiation detectors using halide perovskites.