Near-infrared absorption enhancement in microstructured silicon by Ag film deposition |
| |
| Authors: | Yanchao Wang Jinsong Gao Haigui Yang Xiaoyi Wang |
| |
| Affiliation: | 1.University of the Chinese Academy of Sciences,Beijing,China;2.Key Laboratory of Optical System Advanced Manufacturing Technology,Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences,Changchun,China |
| |
| Abstract: | We investigate the influence of spike-like microstructures formed on the silicon surface via fs-laser scanning with different-size on its near-infrared absorption from 1200 to 2500 nm. Although the infrared absorption of the small size microstructures is obviously lower than the large size, it can be further improved to 90 % by a large amount of random and irregular Ag nano particles from a subsequent deposition of Ag thin film. The origins of absorption enhancement are discussed and theoretically analyzed in detail. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
