Optical properties of highly photosensitive hybrid sol-gel films

• 来源期刊: 中国光学快报(英文版)
• 学科: 工学
• 关键词: 溶胶凝胶 混合膜 光学特性 薄膜 有机无机杂化材料 光敏 体积收缩 光学厚度
• 年，卷（期）: 2010,（4）
• 所属期刊栏目: Thin Films
• 页码范围: 435-438
• 页数: 4页
• 分类号: TQ174.758 TS149
• 语种: 英文

摘要

A new organic-inorganic hybrid material,which shows photo-induced reduction of refractive index as well as volume contraction,is prepared using a sol-gel method.This material is coated on a Si substrate by spin-coating to manufacture film.After irradiated by ultraviolet(UV) light with a deuterium lamp for 5 h, the thickness of film decreases largely by 55%,and the refractive index of film changes from 1.484 to 1.445 at 550 nm.The film''s optical thickness exhibits an exponential change with the increasing...