光反應對氯化銀薄膜的孕核與成長之影響

淡江大學機構典藏 > 工學院 > 機械與機電工程學系暨研究所 > 學位論文 > Item 987654321/52451

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题名:	光反應對氯化銀薄膜的孕核與成長之影響
其它题名:	Effect of photoreaction on nucleation and growth of silver chloride films
作者:	余奕勳;Yu, Yi-syun
贡献者:	淡江大學機械與機電工程學系碩士班林清彬;Lin, Ching-bin
关键词:	氯化銀薄膜;黑暗環境;UV光;光分解;結晶成長機制;晶態;AgCl film;darkness environment;UV irradiation;photodecomposition;crystal growth mechanism;Morphology
日期:	2010
上传时间:	2010-09-23 17:47:02 (UTC+8)
摘要:	本研究已提出一新穎之氯化銀薄膜製造方法，將硝酸銀水溶液相變化成固態後，滴入氯化鈉水溶液，藉由析出反應製得氯化銀薄膜。並探討在暗室及UV曝照環境下對AgCl薄膜的晶體形態影響。暗室環境之AgCl薄膜晶態，上表面形態為接近等軸狀晶體；下表面型態為微小顆粒以異質孕核於薄膜下表面的硝酸根晶體及以優選方向成長成棒狀結構。UV曝照環境之AgCl薄膜晶態，上表面形態為AgCl晶體以銀原子簇為異質成核點成長成展弦比較大之長軸晶態，其中銀原子簇來自於UV光照射AgCl晶體後產生的光分解所致。 This research has brought a new method to fabricating silver chloride films. The silver nitrate solution phase-changed into solid phase and the sodium chloride solution were infused, and then the silver chloride film was produced by precipitation reaction. And the research is a study of the effects on the crystalline morphology of AgCl film which grew in the UV-exposed environment and in the darkness, respectively. The crystalline morphology of AgCl film upper-surface which grew in the darkness is close to equiaxed crystals. The crystalline morphology of AgCl film under-surface is small particles which heterogeneously nucleated on the nitrate crystals under the surface of the film and to be in accordance with the preferred orientation into the stick-like structure. As the crystalline AgCl film grew in the UV-exposed environment, the AgCl crystal became a long axis crystal due to the silver clusters as heterogeneous nucleation site. And the crystal is identified with a higher aspect ratio. The silver clusters were derived from AgCl crystal photodecomposition which was caused by UV rays irradiation.
显示于类别:	[機械與機電工程學系暨研究所] 學位論文

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