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ウエダ ヨシオ
Ueda Yoshio
上田 良夫 所属 追手門学院大学 理工学部 電気電子工学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2017/05 |
| 形態種別 | 論文 |
| 査読 | 査読あり |
| 標題 | Optical damage assessment and recovery investigation of hydrogen-ion and deuterium-ion plasma-irradiated bulk ZnO single crystals |
| 執筆形態 | 共著・編著（代表編著を除く） |
| 掲載誌名 | JOURNAL OF APPLIED PHYSICS |
| 掲載区分 | 国外 |
| 出版社・発行元 | AMER INST PHYSICS |
| 巻・号・頁 | 121(17) |
| 著者・共著者 | Melvin John F. Empizo,Kohei Yamanoi,Kazuyuki Mori,Keisuke Iwano,Yuki Iwasa,Yuki Minami,Ren Arita,Kazuhito Fukuda,Keisuke Takano,Toshihiko Shimizu,Makoto Nakajima,Masashi Yoshimura,Nobuhiko Sarukura,Takayoshi Norimatsu,Masanori Hangyo,Hiroshi Azechi,Tsuguo Fukuda,Bess G. Singidas,Roland V. Sarmago,Makoto Oya,Yoshio Ueda |
| 概要 | In realizing zinc oxide (ZnO) scintillator applications, we assess the optical damage and investigate the recovery of hydrogen-ion ( H-ion) and deuterium-ion (D-ion) plasma-irradiated bulk ZnO single crystals. Hydrothermal-grown bulk crystals are irradiated with H-ion and D-ion beams with 1 keV energy and similar to 10(20) m(-2) s(-1) flux. After irradiation, the single crystals exhibit decreased visible transparencies, redshifted ultraviolet (UV) emission peaks, shortened UV emission lifetimes, and suppressed visible emission bands. These changes in the optical transmittances and photoluminescence emissions are attributed to the generation of defects during irradiation and to the interaction of hydrogen with other defects and/or impurities. Although modified by ion irradiation, the optical properties of the ZnO crystals, except for the UV emission lifetimes, recover hours after without any sample treatment and only at room temperature. |
| DOI | 10.1063/1.4982346 |
| ISSN | 0021-8979/1089-7550 |