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Zayrol

铁虫 (小有名气)

[求助] 关于溶胶凝胶法做膜的求助

Sol-gel初学者
想用solgel做硅酸盐薄膜,原材料硝酸盐,均配成2M的水溶液,加入柠檬酸和TEOS,混合成溶胶后陈化了12小时,然后旋涂在玻璃基片上,3000转旋涂了三层,每次旋涂完均以4℃/min升温到200度干燥处理1h。
看了SEM(图片怎么都上传不了),SEM只看到玻璃基板上有一个个大约2um的小颗粒,每个小颗粒间距有30um,这是没旋上吗?怎么才能做出致密的膜呢?
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