Air-stable Bulk Halide Single Crystal Scintillator Cs3 Cu2 I5 by Melt Growth: Intrinsic and Tl-doped with High Light Yield

ACS Applied Materials & Interfaces
Dongsheng Yuan

Abstract

Ternary metal halides with large exciton binding energy have recently gained considerable attention in the optoelectronic field, due to their high photoluminescence quantum yield and large Stokes shift. Here, efficient scintillators are designed based on these advantageous properties. For the first time, bulk Cs3Cu2I5 was grown using a melt method other than the intensively reported solution growth, and behaved as an intrinsic scintillator, emitting bright blue (~450 nm) light under X-ray and gamma ray irradiation. Successful Tl-doping at Cs sites tuned the emission band over the entire visible range (400-700 nm) due to the synergetic effects of self-trapped excitons (STEs) and Tl centers. Notably, after doping with 1% Tl+, the scintillation light yield of Cs3Cu2I5 increased by nearly three times to 51000 ± 2000 ph/MeV (Cs-137, 662 keV). Cs3Cu2I5:Tl showed a higher energy resolution of 4.5% at 662 keV than that of NaI:Tl and an excellent non-proportionality (< 3%) in the gamma ray energy range of 60-1275 keV. A model of energy relaxation in Cs3Cu2I5:Tl scintillators is proposed and discussed. In particular, it is the first Cu-based halide scintillator that has air-stability, good stopping power, and the ability to grow large bu...Continue Reading

References

May 28, 2002·Physics in Medicine and Biology·Carel W E van Eijk
Feb 9, 2016·Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment·Stephen E DerenzoAndrew Canning
Nov 17, 2016·Scientific Reports·M D BirowosutoC Soci
Aug 19, 2017·Science Advances·Kiyoshi MiyataX-Y Zhu
Jul 13, 2018·Angewandte Chemie·Bogdan M BeninMaksym V Kovalenko
Aug 29, 2018·Nature·Qiushui ChenXiaogang Liu
Sep 15, 2018·Advanced Materials·Taehwan JunHideo Hosono
Apr 24, 2019·Advanced Materials·Azhar FakharuddinLukas Schmidt-Mende
Sep 19, 2019·Advanced Materials·Bo YangJiang Tang
Mar 5, 2020·Science Advances·Abhishek KumarRanjan Singh
May 28, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Jian LuGuo-Cong Guo

❮ Previous
Next ❯

Citations

Jan 6, 2021·Chemical Society Reviews·Mingze Li, Zhiguo Xia
Jan 7, 2021·ACS Applied Materials & Interfaces·Huangjie LuJian-Qiang Wang
Oct 26, 2021·The Journal of Physical Chemistry Letters·Xinjiang WangLijun Zhang

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.