Epitaxial Growth and Stoichiometry Control of Ultrawide Bandgap ZnGa2O4 Films by Pulsed Laser Deposition
文献类型：期刊论文
| 作者 | Wang, Liu; Zhang, Wenrui; Liu, Ningtao; Zhang, Tan; Wang, Zilong; Wu, Simiao; Zhan, Zhaolin; Ye, Jichun |
| 刊名 | COATINGS
 |
| 出版日期 | 2021 |
| 卷号 | 11期号:7 |
| 关键词 | THIN-FILMS LUMINESCENCE CHARACTERISTICS ULTRAVIOLET PHOTODETECTORS PHOTOLUMINESCENCE |
| 英文摘要 | ZnGa2O4 is a promising semiconductor for developing high-performance deep-ultraviolet photodetectors owing to a number of advantageous fundamental characteristics. However, Zn volatilization during the ZnGa2O4 growth is a widely recognized problem that seriously degrades the film quality and the device performance. In this study, we report the synthesis of epitaxial ZnGa2O4 thin films by pulsed laser deposition using a non-stoichiometric Zn1+xGa2O4 target. It is found that supplementing excessive Zn concentration from the target is highly effective to stabilize stochiometric ZnGa2O4 thin films during the PLD growth. The influence of various growth parameters on the phase formation, crystallinity and surface morphology is systematically investigated. The film growth behavior further impacts the resulting optical absorption and thermal conductivity. The optimized epitaxial ZnGa2O4 film exhibits a full width at half maximum value of 0.6 degree for a 120 nm thickness, a surface roughness of 0.223 nm, a band gap of 4.79 eV and a room-temperature thermal conductivity of 40.137 W/(m.K). This study provides insights into synthesizing epitaxial ZnGa2O4 films for high performance optoelectronic devices. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21780]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Ye, JC (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 2.Zhang, WR 3.Zhan, ZL (corresponding author), Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, Liu,Zhang, Wenrui,Liu, Ningtao,et al. Epitaxial Growth and Stoichiometry Control of Ultrawide Bandgap ZnGa2O4 Films by Pulsed Laser Deposition[J]. COATINGS,2021,11(7). |
| APA | Wang, Liu.,Zhang, Wenrui.,Liu, Ningtao.,Zhang, Tan.,Wang, Zilong.,...&Ye, Jichun.(2021).Epitaxial Growth and Stoichiometry Control of Ultrawide Bandgap ZnGa2O4 Films by Pulsed Laser Deposition.COATINGS,11(7). |
| MLA | Wang, Liu,et al."Epitaxial Growth and Stoichiometry Control of Ultrawide Bandgap ZnGa2O4 Films by Pulsed Laser Deposition".COATINGS 11.7(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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