本研究運用膠體溶液法合成CuAlO2粉末，並透過網版印刷法將其製作成多孔型薄膜，以對此CuAlO2多孔型進行特性分析。於合成CuAlO2粉末之流程中，吾人測試不同反應的溫度以及時間(1100°C-15, 30, 60, 90, 120, 180, 240分鐘, 1150°C-1, 2, 3, 4 小時)並利用XRD與拉曼分析觀察其對於相合成之影響。此外，不同的介面活性劑添加量(0, 1, 2, 3 ml)以及反應前驅溶液pH值(pH=-1, 1, 3, 5)對於粉末晶粒大小、顆粒尺寸之影響亦於本實驗中研究探討，並且將合成之CuAlO2粉末運用滾珠球磨法球磨6小時使之磨細、粉碎，最後透過網版印刷法將粉末分散液在玻璃基板上塗佈5次並烤乾以製作多孔型薄膜。本實驗成功利用界面活性劑之添加製作出均勻的CuAlO2多孔型薄膜，並觀察其於可見光區之透光率為30%以下；最佳之載子濃度、遷移率與電阻率分別為2×1013 cm-3, 3.6×102 cm2/Vs and 4.6×103 Ωcm；此外，吾人亦發現在玻璃板上覆蓋一層此多孔型薄膜後，其具有增加熱傳輸效率之效果。

In this work, fabrication of mesoporous CuAlO2 (CAO) thin films have been achieved by using screen printing. CuAlO2 particles was synthesized using sol-gel method with Cu(NO3)2 and Al(NO3)3 as the precursors. Different annealing temperature and time (1100°C-15, 30, 60, 90, 120, 180, 240 min, 1150°C-1, 2, 3, 4 h) were compared with the phase formation analyze by XRD and Raman. Different addition amount of polyethylene glycol (PEG) as surfactant (0, 1, 2, 3 ml) and different pH values of precursor solution (pH=-1, 1, 3, 5) were also used to investigate the crystalline and particle size changes. Ball-milling processing was also utilized to crush and separate particles. Finally, the obtained CuAlO2 particles were tried to be screen printed onto glass substrate to form mesoporous thin films. Uniform mesoporous CuAlO2 thin films were obtained by screen printing for 5 times. The transmittance of mesoporous CuAlO2 thin films were found to be less than 30% in visible region. The measured carrier concentration, mobility and resistivity of the film were up to 2×1013 cm-3, 3.6×102 cm2/Vs and 4.6×103 Ωcm respectively. Furthermore, the heat transfer rate were found to be faster for glass substrates with a mesoporous CuAlO2 thin film than without it.

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