The Optimum Conditions of Fabricating Process of Opal-based Photonic Crystal Films Under Relative Humidity-Controlled Environments

• Main Authors: Yen-Kai Huang, 黃彥凱
• Other Authors: 廖朝光
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/66188735809146931587

碩士 === 元智大學 === 化學工程與材料科學學系 === 94 === The quality of photonic band gap (PBG) films produced using colloidal silica particles under different sedimentation environments was studied. The fabricating procedure includes particle syntheses, powder suspension and sedimentation. Results show that the higher quality of the PBG films was fabricated in higher relative humidity (RH) controlled conditions and low alcohol-content solvents. In addition, the surface tension and particle concentration were also influential factors to affect the PBG crystal growth. From the result of design of experimental (DOE), the final period of the sedimentation process was verified as the most influential stage of the formation of the PBG films. The optimal operating conditions of the PBG crystal fabrication were determined using the DOE data and the optimization approach. The minimum time of fabricating the high quality of PBG film was obtained under the optimum RH-Controlled conditions.