Double Perovskite Scintillators Enabled by Co‐Doped Trap Regulation for Thermally Enhanced X‐Ray Imaging DOI Open Access
Renyan Huang, Xiong Zhang, Xieming Xu

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Abstract Scintillation materials play a significant role in the exploration of extreme space environments and high‐energy physics. Nevertheless, due to prevalence thermal quenching, most traditional scintillators are not capable stable X‐ray imaging at high‐temperature working mode. In this work, Ce 3+ Tb ions successfully co‐doped into Cs 2 NaGdCl 6 double perovskites (DPs) via solvothermal method, exhibiting unusual thermally enhanced scintillation performance. Specifically, radioluminescence intensity :Tb /Ce increases with temperature achieve large ratio 3.67 from 80 500 K. Interestingly, introduction brings dramatic increase thermoluminescence intensity, demonstrating that an increased number deep trap results suppression quenching. At same time, extra occurrence traps can be traced localized octahedral distortions around dopant ions. Moreover, flexible DP‐based film is fabricated by direct coating showing imaging. Ultra‐stable performance over 5 h realized under high 380 K film. The provide regulation strategy for exploring novel high‐performance temperatures.

Language: Английский

A Mild Synthesis of 0D Mn2+‐Doped Cs3CdBr5 Metal Halide for White Light‐Emitting Diodes and X‐Ray Imaging DOI

Tongtong Kou,

Qilin Wei, Tong Chang

et al.

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 3, 2024

Abstract All‐inorganic Cd‐based metal halide is widely studied and applied in the field of optoelectronics due to its superior stability, diverse phase structure, unique photoelectric properties. However, all‐inorganic 0D not their extreme synthesis conditions. In this paper, a simple mild solution method devised successfully synthesize Cs 3 CdBr 5 by manipulating crystal growth kinetics. Simultaneously, influence doping element Mn on transition matrix optical properties are investigated. By with an appropriate concentration 2+ , green emission (520 nm) photoluminescence quantum yield (PLQY) as high 97.39% obtained. Benefiting from near‐unity PLQY excellent properties, white emitting light‐emitting diodes (WLEDs) :20%Mn phosphor exhibit warm light color rendering index (CRI) 91 correlated temperature (CCT) 4108 K. addition, also demonstrates X‐ray scintillation low detection limit 32.83 nGy air ·s −1 . The results show that :Mn only promising candidate for solid‐state lighting but low‐dose high‐resolution imaging.

Language: Английский

Citations

4
Pb2+ and Mn2+ Codoped Cs2CdCl4 Nanocrystals with Tunable Emission DOI
Min Zeng, Rui Wang, Xi Zeng

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 14, 2025

Language: Английский

Citations

0
All‐In‐One Double Perovskite Flexible Film with Highly Efficient Warm‐White Emission, Near‐Infrared Emission, and X‐Ray Radioluminescence DOI Open Access

Hui Peng,

Wenjie Huang,

Linghang Kong

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Abstract Recently, lead‐free double perovskites have gained much attention for their superior optoelectronic properties. However, realizing efficient white light and near‐infrared (NIR) emission, as well bright radioluminescence (RL) in a single compound has not yet been reported. Herein, Bi 3+ /Mo 4+ ‐codoped Cs 2 Ag 0.6 Na 0.4 InCl 6 perovskite is synthesized by hydrothermal reaction. Under photoexcitation, the codoped exhibits highly broadband warm‐white emission (610 nm) NIR (930 nm), which can be attributed to self‐trapped exciton of d–d transition Mo , respectively. Interestingly, also emits strong with yield 25100 photons per MeV under X‐ray irradiation. Based on /PDMS flexible film, its applications emitting diodes (WLED), source, scintillator are demonstrated, respectively, all exhibit remarkable Finally, as‐fabricated devices light, NIR, imaging further demonstrated pixel‐level image fusion realized without pixel mismatch complex processing. Therefore, internal information capsule wrapped centrifuge tube iron wire successfully through fusion.

Language: Английский

Citations

0
Rb2AgBr3:Cu scintillators for high performance gamma and X-ray detection DOI
Qi Wu, Xunsheng Zhou,

Wanting Gui

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160815 - 160815

Published: Feb. 1, 2025

Language: Английский

Citations

0
Double Perovskite Scintillators Enabled by Co‐Doped Trap Regulation for Thermally Enhanced X‐Ray Imaging DOI Open Access
Renyan Huang, Xiong Zhang, Xieming Xu

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Abstract Scintillation materials play a significant role in the exploration of extreme space environments and high‐energy physics. Nevertheless, due to prevalence thermal quenching, most traditional scintillators are not capable stable X‐ray imaging at high‐temperature working mode. In this work, Ce 3+ Tb ions successfully co‐doped into Cs 2 NaGdCl 6 double perovskites (DPs) via solvothermal method, exhibiting unusual thermally enhanced scintillation performance. Specifically, radioluminescence intensity :Tb /Ce increases with temperature achieve large ratio 3.67 from 80 500 K. Interestingly, introduction brings dramatic increase thermoluminescence intensity, demonstrating that an increased number deep trap results suppression quenching. At same time, extra occurrence traps can be traced localized octahedral distortions around dopant ions. Moreover, flexible DP‐based film is fabricated by direct coating showing imaging. Ultra‐stable performance over 5 h realized under high 380 K film. The provide regulation strategy for exploring novel high‐performance temperatures.

Language: Английский

Citations

0