Efficient white light-emitting diodes based on Cu(I) activated single-phase halide single crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00585737" target="_blank" >RIV/68378271:_____/24:00585737 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/pssr.202300463" target="_blank" >https://doi.org/10.1002/pssr.202300463</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pssr.202300463" target="_blank" >10.1002/pssr.202300463</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficient white light-emitting diodes based on Cu(I) activated single-phase halide single crystals

Popis výsledku v původním jazyce

Single-phase white light emitters have become a potential substitute for tricolor phosphor mixtures for the white light-emitting diodes (WLEDs) application to simplify device structure and eliminate self-absorption. Newly developed lowdimensional halides, noted for their highly efficient luminescent characteristics, have seen increasing interest in recent years. Herein, highly efficient white-light emission is demonstrated in single-phase zero-dimensional halide single crystal, namely monovalent Cu-doped Cs2HfCl6. Cs2HfCl6:Cu single crystals have three luminescent centers. Two emission peaks at 365 nm and 380 nm correspond to the intrinsic self-trapped excitons emission and a defect-related trapped exciton emission, respectively. Cu doping introduces an intense Cu-bound exciton emission peaking at 540 nm with a large Stokes shift of 250 nm and a high photoluminescence quantum yield of 68%.

Název v anglickém jazyce

Efficient white light-emitting diodes based on Cu(I) activated single-phase halide single crystals

Popis výsledku anglicky

Single-phase white light emitters have become a potential substitute for tricolor phosphor mixtures for the white light-emitting diodes (WLEDs) application to simplify device structure and eliminate self-absorption. Newly developed lowdimensional halides, noted for their highly efficient luminescent characteristics, have seen increasing interest in recent years. Herein, highly efficient white-light emission is demonstrated in single-phase zero-dimensional halide single crystal, namely monovalent Cu-doped Cs2HfCl6. Cs2HfCl6:Cu single crystals have three luminescent centers. Two emission peaks at 365 nm and 380 nm correspond to the intrinsic self-trapped excitons emission and a defect-related trapped exciton emission, respectively. Cu doping introduces an intense Cu-bound exciton emission peaking at 540 nm with a large Stokes shift of 250 nm and a high photoluminescence quantum yield of 68%.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Physica Status Solidi

ISSN

1862-6254

e-ISSN

1862-6270

Svazek periodika

18

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

2300463

Kód UT WoS článku

001142475300001

EID výsledku v databázi Scopus

2-s2.0-85182485323