Structure and optical property changes of Nb_{2}O_{5} particles by Q-switched laser pulses in water |
| |
Authors: | Jing-Yi Liang Chao-Hsien Wu Yuyuan Zheng Pouyan Shen Shuei-Yuan Chen |
| |
Institution: | 1. Department of Materials and Optoelectronic Science, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan, ROC 2. Department of Mechanical and Automation Engineering, I-Shou University, Kaohsiung, 84001, Taiwan, ROC
|
| |
Abstract: | Monoclinic H-type Nb $_{2}$ O $_{5}$ powders subjected to Q-switched laser pulses in water were characterized by X-ray/electron diffraction and optical spectroscopy to have a significant optical property change with accompanied transformation into orthorhombic T-, pseudohexagonal TT-type and an amorphous phase. The T-Nb $_{2}$ O $_{5}$ nanoparticles were (100), (010), (001) and ( $\overline{2} $ 01) faceted and commonly in oriented intergrowth with TT-type or amorphized domains retaining the polymerized block units of the relic H-type. Such multiple-phase nanoparticles were hydrogenated and densified to modify Raman and FTIR bands and to show visible absorptions corresponding to a broad minimum band gap of 2.3–2.8 eV for potential opto-catalytic and electrochromic applications. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|