在矿光探测器中将TiO2微球嵌入到活性层中作为光散射器,以促进光采集
Jianwen Feng1,2, Xiangqian Cui2, Bobo Li2
1Institute of New Carbon Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China.
Nanotechnology
|June 26, 2023
概括
二氧化 (TiO2) 微球通过散射光来增强矿光探测器,改善光子捕获. 这提高了光电流和响应能力,而不会对设备性能产生负面影响.
科学领域:
- 材料科学 材料科学 材料科学
- 光电学是指光电子产品.
- 纳米技术纳米技术
背景情况:
- 矿光探测器提供高性能,但可以通过光吸收受到限制.
- 改善光管理对于提高光电探测器效率至关重要.
研究的目的:
- 为了提高p-i-n矿光探测器的光子捕获能力.
- 研究二氧化 (TiO2) 微球作为光散射器的作用.
主要方法:
- 在p-i-n光探测器的矿石层中嵌入TiO2微球 (200-400nm).
- 分析特定波长下的光电流和响应性的变化.
- 评估对载体提取,暗电流和响应时间的影响.
主要成果:
- 在560-610nm和730-790nm范围内观察到增强的光电流和响应能力.
- 光流在590nm时增加了17.93%,达到1.71μA.
- 没有发现对载体提取,暗电流或响应时间的负面影响.
结论:
- TiO2微球有效地作为光散射器,改善矿层内的光传输.
- 整合TiO2微球是一种可行的策略,可以提高矿光探测器的性能.
- 通过使用混合化物矿装置进一步验证了这些发现.
相关概念视频
Total Internal Reflection Fluorescence Microscopy
Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
Photoluminescence: Applications
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...


