Blue Long Afterglow and Ultra Broadband Vis‐NIR Emission from All‐Inorganic Copper‐Doped Silver Halide Single Crystals
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Blue Long Afterglow and Ultra Broadband Vis‐NIR Emission from All‐Inorganic Copper‐Doped Silver Halide Single Crystals. / Wang, Sijia; Liu, Runze; Li, Juntao; Meng, Caixia; Liu, Jianyong; Chen, Junsheng; Cheng, Pengfei; Wu, Kaifeng.
I: Angewandte Chemie International Edition, 2024.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Blue Long Afterglow and Ultra Broadband Vis‐NIR Emission from All‐Inorganic Copper‐Doped Silver Halide Single Crystals
AU - Wang, Sijia
AU - Liu, Runze
AU - Li, Juntao
AU - Meng, Caixia
AU - Liu, Jianyong
AU - Chen, Junsheng
AU - Cheng, Pengfei
AU - Wu, Kaifeng
PY - 2024
Y1 - 2024
N2 - All-inorganic metal halides with afterglow emission have attracted increasing attention due to their significantly longer afterglow duration and higher stability compared to their organic-inorganic hybrid counterparts. However, their afterglow colors have not yet reached the blue spectral region. Here, we report all-inorganic copper-doped Rb2AgBr3 single crystals with ultralong blue afterglow (>300 s) by modulating defect states through doping engineering. The introduction of copper(I) ions into Rb2AgBr3 facilitates the formation of bromine vacancies, thus increasing the density of trap states available for charge storage and enabling bright, persistent emission after ceasing the excitation. Moreover, cascade energy transfer between distinct emissive centers in the crystals results in ultra-broadband photoluminescence, not only covering the whole white light with near-unity quantum yield but also extending into the near-infrared region. This ‘cocktail’ of exotic light-emission properties, in conjunction with the excellent stability of copper-doped Rb2AgBr3 crystals, allowed us to demonstrate their implementation to solid-state lighting, night vision, and intelligent anti-counterfeiting.
AB - All-inorganic metal halides with afterglow emission have attracted increasing attention due to their significantly longer afterglow duration and higher stability compared to their organic-inorganic hybrid counterparts. However, their afterglow colors have not yet reached the blue spectral region. Here, we report all-inorganic copper-doped Rb2AgBr3 single crystals with ultralong blue afterglow (>300 s) by modulating defect states through doping engineering. The introduction of copper(I) ions into Rb2AgBr3 facilitates the formation of bromine vacancies, thus increasing the density of trap states available for charge storage and enabling bright, persistent emission after ceasing the excitation. Moreover, cascade energy transfer between distinct emissive centers in the crystals results in ultra-broadband photoluminescence, not only covering the whole white light with near-unity quantum yield but also extending into the near-infrared region. This ‘cocktail’ of exotic light-emission properties, in conjunction with the excellent stability of copper-doped Rb2AgBr3 crystals, allowed us to demonstrate their implementation to solid-state lighting, night vision, and intelligent anti-counterfeiting.
U2 - 10.1002/anie.202403927
DO - 10.1002/anie.202403927
M3 - Journal article
C2 - 38632085
JO - Angewandte Chemie International Edition
JF - Angewandte Chemie International Edition
SN - 1433-7851
ER -
ID: 391673012