Ultrabright and highly efficient all-inorganic zero-dimensional perovskite scintillators

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00547974" target="_blank" >RIV/68378271:_____/21:00547974 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/adom.202100460" target="_blank" >https://doi.org/10.1002/adom.202100460</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/adom.202100460" target="_blank" >10.1002/adom.202100460</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ultrabright and highly efficient all-inorganic zero-dimensional perovskite scintillators

Popis výsledku v původním jazyce

Low-dimensional halide perovskites with excellent luminescent properties have become leading candidates for optoelectronic and radiation-detection applications. In this work, Tl cation is incorporated into 0D perovskite Cs3Cu2I5 host and an ultrabright and efficient scintillator is developed for X-ray and γ-ray detection. The radioluminescence emission of Cs3Cu2I5:Tl crystal under X-ray excitation consists of a self-trapped exciton emission at 440 nm and a Tl-related emission at 510 nm at room temperature. With optimized Tl doping, the Cs3Cu2I5 not only demonstrates about fivetimes enhanced steady-state scintillation yield up to 150 000 photons/MeV and an improvement of X-ray detection limit from 103.6 to 66.3 nGy s−1, but also maintains an extremely low afterglow of 0.17% at 10 ms after X-ray cutoff. The Cs3Cu2I5:Tl also possess a remarkable energy resolution of 3.4% at 662 keV and an ultrahigh light yield of 87 000 photons/MeV under 137Cs γ-ray radiation.

Název v anglickém jazyce

Ultrabright and highly efficient all-inorganic zero-dimensional perovskite scintillators

Popis výsledku anglicky

Low-dimensional halide perovskites with excellent luminescent properties have become leading candidates for optoelectronic and radiation-detection applications. In this work, Tl cation is incorporated into 0D perovskite Cs3Cu2I5 host and an ultrabright and efficient scintillator is developed for X-ray and γ-ray detection. The radioluminescence emission of Cs3Cu2I5:Tl crystal under X-ray excitation consists of a self-trapped exciton emission at 440 nm and a Tl-related emission at 510 nm at room temperature. With optimized Tl doping, the Cs3Cu2I5 not only demonstrates about fivetimes enhanced steady-state scintillation yield up to 150 000 photons/MeV and an improvement of X-ray detection limit from 103.6 to 66.3 nGy s−1, but also maintains an extremely low afterglow of 0.17% at 10 ms after X-ray cutoff. The Cs3Cu2I5:Tl also possess a remarkable energy resolution of 3.4% at 662 keV and an ultrahigh light yield of 87 000 photons/MeV under 137Cs γ-ray radiation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/EF16_019%2F0000760" target="_blank" >EF16_019/0000760: Fyzika pevných látek pro 21. století</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Advanced Optical Materials

ISSN

2195-1071

e-ISSN

2195-1071

Svazek periodika

9

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

2100460

Kód UT WoS článku

000645865000001

EID výsledku v databázi Scopus

2-s2.0-85105142541