Transparency of Hybrid Films Based on (γ-Methacrylpropyl)- trimethoxysilane and Its Validation by Computing Energy-band Structure
Using (γ-methacrylpropyl)-trimethoxysilane (MPMS) modified with various amounts of tetraethoxysilane (TEOS) and titanium tetrabutoxide (TTB), two kinds of hybrid films, film-MPMS-silsesquioxane (SSO)-TEOS (f-MSTE) and film-MPMS-SSO-TTB (f-MSTT), were prepared. The average transparency (AT) of the modified films, about 90-94％, was measured in the ranges of the VIS light region (400-750 nm) and in the NIR region (750-2500 nm), indicating that these high-AT films can provide crops with growth energy and improvement of the photosynthetic process efficiency. Both TEOS and TTB adequate additions resulted in a hybrid structure (containing SiO2 and TiO2), and an addition can cause an increase in the AT radiation from sunlight. However, the AT of f-MSTE is higher than that of f-MSTT, which was validated using molecular dynamic simulation and calculation of the states density and the energy-band structure of MPMS-SSO, SiO2 and TiO2 building blocks.
Films silsesquioxane modification sunlight density of states band structure
Haiyan Wang Di Wang Peng Zhu Lijiang Hu
Chemistry Department, Harbin Institute of Technology, Harbin 150001, China College of Chemistry and Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China Chemistry Department, Harbin Institute of Technology, Harbin 150001, China
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
778-783
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）