Experimental and theoretical study of defect-driven scintillation from γ-Ga2O3 nanophosphor-embedded transparent glass-ceramics
文献类型：期刊论文
| 作者 | Fan, Chunli2; Li, Wenhao2; Nan, Jinlong2; Hu, Peng4; Qian, Sen4; Zhu, Yao2; Sun, Yan2; Hu, Qingmiao1; Hua, Zhehao4; Wang, Ci2,3 |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2023-10-11 |
| 卷号 | 108期号:15页码:11 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.108.155414 |
| 通讯作者 | Wang, Ci(2520210429@hrbeu.edu.cn) ; Ren, Jing(ren.jing@hrbeu.edu.cn) |
| 英文摘要 | 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:001088038300001 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | 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 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178024]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Ci; Ren, Jing |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Harbin Engn Univ, Coll Phys & Optoelect Engn, Harbin 150001, Peoples R China 3.Harbin Engn Univ, Natl Key Lab Underwater Acoust Technol, Harbin 150001, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, 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. |
入库方式： OAI收割
来源：金属研究所
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