Timing performance of lead halide perovskite nanoscintillators embedded in a polystyrene matrix

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00562769" target="_blank" >RIV/68378271:_____/22:00562769 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/22:00364477

Výsledek na webu

<a href="https://hdl.handle.net/11104/0334969" target="_blank" >https://hdl.handle.net/11104/0334969</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d2tc02060b" target="_blank" >10.1039/d2tc02060b</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Timing performance of lead halide perovskite nanoscintillators embedded in a polystyrene matrix

Popis výsledku v původním jazyce

In this work, we present the production, characterization, and – for the first time – time resolution measurements of CsPbBr3 nanocrystals embedded in polystyrene, using two different surface ligands (OA + OAm and DDAB) and three different filling factors of up to 10%. The samples were characterized by spectroscopic methods, namely photoand radio-luminescence as well as transmittance, while scintillation decay kinetics was measured in a time correlated single photon counting setup upon X-ray excitation. In addition, the time resolution of these materials was measured using a novel setup coupled to analog silicon photomultipliers and low energy pulsed X-ray excitation. When comparing with the state of the art inorganic(LYSO:Ce) crystal, more than twofold time resolution improvement was obtained. These first promising results represent the starting point for the optimization of CsPbBr3 nanocrystals embedded in polymer matrices and their application in fast timing detectors for TOF-CT, TOF-PET and high energy physics.n

Název v anglickém jazyce

Timing performance of lead halide perovskite nanoscintillators embedded in a polystyrene matrix

Popis výsledku anglicky

In this work, we present the production, characterization, and – for the first time – time resolution measurements of CsPbBr3 nanocrystals embedded in polystyrene, using two different surface ligands (OA + OAm and DDAB) and three different filling factors of up to 10%. The samples were characterized by spectroscopic methods, namely photoand radio-luminescence as well as transmittance, while scintillation decay kinetics was measured in a time correlated single photon counting setup upon X-ray excitation. In addition, the time resolution of these materials was measured using a novel setup coupled to analog silicon photomultipliers and low energy pulsed X-ray excitation. When comparing with the state of the art inorganic(LYSO:Ce) crystal, more than twofold time resolution improvement was obtained. These first promising results represent the starting point for the optimization of CsPbBr3 nanocrystals embedded in polymer matrices and their application in fast timing detectors for TOF-CT, TOF-PET and high energy physics.n

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Chemistry C

ISSN

2050-7526

e-ISSN

2050-7534

Svazek periodika

10

Číslo periodika v rámci svazku

35

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

12836-12843

Kód UT WoS článku

000843796800001

EID výsledku v databázi Scopus

2-s2.0-85137405817