Synthesis of Complex Cesium Lead Bromide Glass Ceramics: Role of Thermal Plasma

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F25%3A00617272" target="_blank" >RIV/61389021:_____/25:00617272 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216275:25310/24:39921956

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11664-024-11642-4" target="_blank" >https://link.springer.com/article/10.1007/s11664-024-11642-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11664-024-11642-4" target="_blank" >10.1007/s11664-024-11642-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis of Complex Cesium Lead Bromide Glass Ceramics: Role of Thermal Plasma

Popis výsledku v původním jazyce

The present work reports on the results of the synthesis and study of complex cesium lead bromide glass ceramics using classical heating and thermal plasma. The role of the substrate in the thermal plasma-assisted processes of growth has been disclosed. For reference, powder samples of these bromides were also synthesized. X-ray diffraction (XRD) revealed the presence of many material phases in all the samples except for the glass ceramics grown in a furnace using classical methods. The dominant phase was Cs4PbBr6 in most cases. However, CsPbBr3 was also present in some samples. Exotic phases such as solid Br2, metallic Cs (which dominates in one of the glass ceramic samples), and Cs4Pb9 were also observed. This indicates cesium segregation during the samples' growth and excess cesium in metallic form within the samples. The existence of CsPbBr3 quantum dots within or among the Cs4PbBr6 nanocrystals has been confirmed by photoluminescence (PL) measurements. Electron paramagnetic resonance (EPR) revealed the existence of Cs0–Cs0 dimers in a type of quantum dot undergoing a phase transition at 10 K.

Název v anglickém jazyce

Synthesis of Complex Cesium Lead Bromide Glass Ceramics: Role of Thermal Plasma

Popis výsledku anglicky

The present work reports on the results of the synthesis and study of complex cesium lead bromide glass ceramics using classical heating and thermal plasma. The role of the substrate in the thermal plasma-assisted processes of growth has been disclosed. For reference, powder samples of these bromides were also synthesized. X-ray diffraction (XRD) revealed the presence of many material phases in all the samples except for the glass ceramics grown in a furnace using classical methods. The dominant phase was Cs4PbBr6 in most cases. However, CsPbBr3 was also present in some samples. Exotic phases such as solid Br2, metallic Cs (which dominates in one of the glass ceramic samples), and Cs4Pb9 were also observed. This indicates cesium segregation during the samples' growth and excess cesium in metallic form within the samples. The existence of CsPbBr3 quantum dots within or among the Cs4PbBr6 nanocrystals has been confirmed by photoluminescence (PL) measurements. Electron paramagnetic resonance (EPR) revealed the existence of Cs0–Cs0 dimers in a type of quantum dot undergoing a phase transition at 10 K.

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/GA24-12872S" target="_blank" >GA24-12872S: Pokročilá uzavřená nanokompozitní struktura CsPbBr3/ZnO/PS s účinnou odezvou na ionizující záření</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Electronic Materials

ISSN

0361-5235

e-ISSN

1543-186X

Svazek periodika

54

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

996-1006

Kód UT WoS článku

001375441400001

EID výsledku v databázi Scopus

2-s2.0-85212130032