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用电子陷阱能量分辨密度识别金属氧化物粉末的新概念A Novel Concept of Identification of Metal-oxide Powders by Energy-resolved Density of Electron Traps |
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| 课程网址: | http://videolectures.net/preglov_ohtani_metal_oxide_powders/ |
| 主讲教师: | Bunsho Ohtani |
| 开课单位: | 北海道大学 |
| 开课时间: | 2017-08-22 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Energy-resolved distribution of electron traps (ERDT) as well as conduction-band bottom (CBB) in metal oxide particles as a function of energy from valence-band (VB) top has been evaluated by newly developed reversed double-beam photoacoustic spectroscopy (RDB-PAS), in which photoabsorption of electrons in ETs directly excited from VB by irradiation of intense continuous light is measured by photoacoustic spectroscopy (PAS) using modulated LED light at 625 nm. In this study, how to use ERDT/CBB patterns as a finger print for identification of metal oxide (titania, niobia and the others) particles having band gap and ETs by weighted degree of coincidence multiplied by the degrees of coincidence of ERDT patterns, total density of ETs and CBB, and correlation between degree of coincidences of ERDT/CBB patterns and photocatalytic activities are discussed. |
| 关 键 词: | 电子陷阱能量; 密度识别; 金属氧化物 |
| 课程来源: | 视频讲座网 |
| 数据采集: | 2020-11-29：yxd |
| 最后编审: | 2021-09-20：zyk |
| 阅读次数: | 80 |