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National Chung Hsing University Institutional Repository - NCHUIR > 工學院 > 化學工程學系所 > 依資料類型分類 > 期刊論文 >  All sol-gel organic-inorganic nonlinear optical materials based on melamines and an alkoxysilane dye

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/129352

標題: All sol-gel organic-inorganic nonlinear optical materials based on melamines and an alkoxysilane dye
作者: Hsiue, G.H.;Lee, R.H.;Jeng, R.J.
鄭如忠;李榮和
關鍵字: sol-gel;melamines;alkoxysilane dye;composite-materials;2nd-order;polymers;networks;polymerization;routes;system;silica
日期: 1999
Issue Date: 2012-12-07 15:26:38 (UTC+8)
關連: Polymer, Volume 40, Issue 23, Page(s) 6417-6428.
摘要: A series of all sol-gel organic-inorganic nonlinear optical materials based on the prepolymers of melamines and an alkoxysilane dye (ASD) were investigated. The NLO-active ASD containing nitroazobenzene was incorporated into the melamine matrices with different weight ratios. This all sor-gel type is shown to have the advantages of simultaneous polymerizations, and better compatibility between two components due to residual hydroxyl and silanol groups after curing. The simultaneous route is often used to avoid significant phase separation in a multi-component system. SEM results indicate that the inorganic networks are distributed uniformly throughout the organic networks on a molecular scale. The silica particle sizes are well under 1 mu m. This series of all sol-gel materials exhibits large second-order optical nonlinearity (d(33) = 10-54 pm/V at 1064 nm, and 3-17 pm/V at 1542 nm) after poling and curing. Temporal stability of the effective second harmonic coefficient at 100 degrees C is also reported. (C) 1999 Elsevier Science Ltd. All rights reserved.
Relation: Polymer
Appears in Collections:[依資料類型分類] 期刊論文
[依教師分類] 李榮和

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