本研究利用溶膠-凝膠法，製備應用在光學儲存的有機無機複合材料。在甲基丙烯酸丙酯三甲氧基矽烷(MPTS)與四乙氧基矽烷(TEOS)做為前驅物的系統內，添加甲基丙烯酸苯基酯(BMA)，可以填補MPTS的單體在縮合反應後被TEOS隔開的情形，使光聚合時光柵結構能成長完整。本研究在添加BMA後，繞射效率可提昇至約50%。
為了放大SiO2孔洞結構並探討對於繞射效率的影響，本研究亦添加了素有”矽橡膠”之稱的聚二甲基矽氧烷(PDMS)，其兩端的氫氧基可參與縮和反應。結果顯示添加PDMS者，其最高繞射效率及衰退速率上的表現均次於未添加者。推斷可能原因為PDMS參與縮合反應，單體間的距離增大使光柵無法完整成長，導致繞射能力下降。而繞射效率衰退的原因則與藍光持續寫入以及PDMS的添加有關。

Optical storage materials based on a photopolymerizable silica and a benzyl methacrylate (BMA) were prepared by sol-gel process and their optical properties were measured in this study. The silica precursors used were 3-(trimethoxysilyl) propyl methacrylate (MPTS), polydimethylsiloxane (PDMS), and tetraethyl- orthosilicate (TEOS). BMA was expected to fill the empty space between MPTS clusters to increase the degree of free radical polymerization, so as to increase the optical density of the materials system. In our system, the diffraction efficiency can reach as high as 50 %. On the other hand, PDMS was designed to enlarge the pore structure of silica, allowing the polymerizable BMA and MPTS to efficiently fill the pores before irradiation. The result shows the diffraction efficiency decreases and decays quickly by the addition of PDMS. The decrease of diffraction efficiency is attributed to the co-condensation of PDMS with MPTS and TEOS, where the concentration of double bonds in MPTS is reduced, thus inhibiting the complete growth of the grating during photopolymerization. The decay of diffraction efficiency is attributed to the prolonged irradiation of blue laser at 473 nm on the PDMS-containing optical storage materials.

論文審定書 i
誌謝 ii
摘要 iii
Abstract iv
圖目錄 viii
表目錄 x
第一章 緒論 1
1.1 前言 1
1.2 研究動機 1
第二章 理論基礎與文獻回顧 3
2.1 全像術簡介 3
2.2 全像感光儲存材料的種類 3
2.3 感光高分子的種類 5
2.4 光聚合 6
2.4.1 光聚合反應 6
2.4.2 抑制劑的效應 7
2.4.3 光柵形成原理 8
2.4.4 穩定光柵 8
2.5 製備有機-無機複合材料之種類及優缺 10
2.6 溶膠-凝膠法 11
2.6.1 溶膠-凝膠法之發展及簡介 11
2.6.2 溶膠-凝膠法之優缺 11
2.6.3 影響溶膠-凝膠法之因素 12
2.7 繞射效率之計算方法及種類 16
2.8 光學系統之架構 17
第三章 實驗 19
3.1 實驗藥品 19
3.2 實驗儀器 19
3.3 實驗流程 21
第四章 結果 24
4.1 抑制劑的移除 24
4.2 添加PDMS 24
4.3 藍光入射角角度 26
4.4 BMA的效應 28
4.5 傅利葉轉換紅外線光譜儀(FTIR)分析 29
4.6 光學顯微鏡(OM)觀察 33
4.7 掃描式電子顯微鏡(SEM)觀察 37
4.8 比表面積分析儀(BET) 40
4.9 高階繞射效率之量測 44
4.10 不同藍光寫入時間繞射效率之變化 44
第五章 討論 47
5.1 抑制劑的影響 47
5.2 BMA的效應 47
5.3 藍光入射角度的影響 47
5.4 孔洞性質 48
5.5 PDMS的效應 48
5.6 繞射效率衰減原因之探討 51
第六章 結論 54
第七章 建議未來工作 55
7.1 繞射效率的提昇 55
7.2 試片厚度上的控制 55
7.3 孔洞性質的探討 55
7.4 繞射效率衰退之解釋 55
參考文獻 56

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