Experimental and theoretical study of defect-driven scintillation from &gamma;-Ga2O3 nanophosphor-embedded transparent glass-ceramics

doi:10.1103/PhysRevB.108.155414

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	Experimental and theoretical study of defect-driven scintillation from γ-Ga2O3 nanophosphor-embedded transparent glass-ceramics
	Fan, Chunli 1; Li, Wenhao 1; Nan, Jinlong 1; Hu, Peng 3; Qian, Sen 3; Zhu, Yao 1; Sun, Yan 1; Hu, Qingmiao 4; Hua, Zhehao 3; Wang, Ci 1,2; Ren, Jing 1,2; Zhang, Jianzhong 1,2
通讯作者	Wang, Ci(2520210429@hrbeu.edu.cn) ; Ren, Jing(ren.jing@hrbeu.edu.cn)
	2023-10-11
发表期刊	PHYSICAL REVIEW B
ISSN	2469-9950
卷号	108 期号:15 页码:11
摘要	Gallium oxide (Ga2O3), as a representative of the four-generation ultrawide band-gap semiconductors, emerges to be a promising candidate for high performance scintillators. However, the full exploitation of its scintillation properties and the understanding of the defect-driven luminescence mechanisms are still lacking especially for gamma -Ga2O3 nanocrystals (NCs) grown in glass. Here, the easy-to-process glass-making and post -thermal treatment method is used to prepare gamma -Ga2O3 NC embedded transparent glass-ceramics (GCs). X-ray excited bright visible blue-green emissions are observed from the gamma -Ga2O3 NC embedded GCs, which are attributed to the donor-acceptor pair (DAP) recombination. Positive luminescence hysteresis is found to occur in the processes of both ultraviolet (UV) light excited photoluminescence and the x-ray excited luminescence (XEL). A method of prolonged UV preirradiation is used to counteract the hysteresis effect, which is desirable from the application point of view. Monte Carlo simulation is employed to reveal the difference between x -and gamma -ray photoresponse of the GCs, and the results are compared with those of the Bi4Ge3O12 crystal. First-principles calculations are carried out to investigate the intrinsic defect properties of gamma-Ga2O3. Our results provide a theoretical foundation to understand the relevant defects responsible for the observed DAP, and offer potential avenues for tailoring optical performance for various applications. As a proof-of-concept, an x-ray imaging system is built on the studied GC scintillator, exhibiting performance superior to that of the eye-catching CsPbBr3 perovskite NC embedded GCs.
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Heilongjiang Province of China ; Fundamental Research Funds for the Central Universities ; GHfund B ; State Key Laboratory of Particle Detection and Electronics
DOI	10.1103/PhysRevB.108.155414
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52201008] ; National Natural Science Foundation of China[52372003] ; National Natural Science Foundation of China ; Natural Science Foundation of Heilongjiang Province of China[ZD2023E004] ; Fundamental Research Funds for the Central Universities[3072020CF2515] ; Fundamental Research Funds for the Central Universities[3072022CFJ2504] ; GHfund B[202302024584] ; State Key Laboratory of Particle Detection and Electronics[SKLPDE-KF-202311]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001088038300001
出版者	AMER PHYSICAL SOC
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178025
专题	中国科学院金属研究所
通讯作者	Wang, Ci; Ren, Jing
作者单位	1.Harbin Engn Univ, Coll Phys & Optoelect Engn, Harbin 150001, Peoples R China 2.Harbin Engn Univ, Natl Key Lab Underwater Acoust Technol, Harbin 150001, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Fan, Chunli,Li, Wenhao,Nan, Jinlong,et al. Experimental and theoretical study of defect-driven scintillation from γ-Ga2O3 nanophosphor-embedded transparent glass-ceramics[J]. PHYSICAL REVIEW B,2023,108(15):11.
APA	Fan, Chunli.,Li, Wenhao.,Nan, Jinlong.,Hu, Peng.,Qian, Sen.,...&Zhang, Jianzhong.(2023).Experimental and theoretical study of defect-driven scintillation from γ-Ga2O3 nanophosphor-embedded transparent glass-ceramics.PHYSICAL REVIEW B,108(15),11.
MLA	Fan, Chunli,et al."Experimental and theoretical study of defect-driven scintillation from γ-Ga2O3 nanophosphor-embedded transparent glass-ceramics".PHYSICAL REVIEW B 108.15(2023):11.