聚二氧乙基噻吩/聚苯乙烯磺酸摻混銦錫氧化物奈米複合導電薄膜與水凝膠特性之研究

本研究利用共沉澱法在室溫下製備銦錫氧化物奈米片條，經由高溫煆燒轉變成銦錫氧化物奈米片條(ITO)。形成的銦錫氧化物粉體分散在鹼性水溶液 (pH=12)中，加入導電高分子(PEDOT/PSS) 、改質劑乙二醇 (EG)，以旋轉塗佈法塗佈於於玻璃基板上，經過熱硬化處理後，真空烘烤可得 PEDOT/PSS-ITO 透明導電塗膜。在此研究中探討ITO含量、溶劑選擇、溶液體積比、改質劑含量和塗膜方式對製作的塗膜片電阻和可見光平均穿透率的影響，在最佳條件下可得片電阻108 Ω/sq和穿透率87.8%的透明導電塗膜。再由PEDOT/PSS-ITO 透明導電塗膜具有的特性，無機粒子ITO可以吸收紫外光的性質，以不同ITO含量的透明導電塗膜做紫外光測試，測試是否此塗膜具有耐紫外光照射之能力；導電高分子PEDOT具有的較高著色效率，以不同配方、塗膜基材做電化學測試，測試是否此塗膜具有電致色變之效果。由ITO加入至PEDOT/PSS配置塗膜液的過程中，發現ITO會與PSS產生交聯，具有成膠的可能性，並測試流變性質。

關鍵字

銦錫氧化物；共沉澱法；複合塗膜；片電阻；穿透率；電致色變；聚二氧乙基噻吩；流變性質

並列摘要

Indium-tin hydroxide(ITH) nanostips were prepared by co-precipitation at room temperature and converted into indium-tin oxide(ITO) nanostrips after high-temperature calcination. The formed ITO powder was dispersed in an alkaline aqueous solution (pH12), and then mixed with a conductive polymer (PEDOT/PSS) and a modifier ethylene glycol (EG) to form coating pastes. The coating pastes were coated on glass substrates by using the spin coating method, and the resultant coatings were thermal cured. The effects of ITO content, solvent selection, solution volume ratio, modifier content and film-coating method on the sheet resistance and visible light transmittance of the formed coatings were studied. In the optimal case, a coating with sheet resistance of 108 Ω/sq and average visible transmittance of 87.8% could be prepared. Because ITO can absorb UV light, the transparent conductive coatings with different ITO contents were tested to see their UV resistibility. Conductive polymer PEDOT is known to be electrochromic. Coatings made with different formulations on different substrates were electrochemically tested to see whether the coatings possess electrochromic effect. During preparation of the coating solutions, it was found that ITO can form cross-links with PSS, to induce gelation of the solution. The rheological properties were the gels were tested.

並列關鍵字

indium-tin oxide ； co-precipitation ； composite coating ； sheet resistance ； transmittance ； electrochromism ； PEDOT ； rheological properties

參考文獻

[1] 洪文進、許登貴、萬明安、郭書瑋、蘇昭瑾，「ITO透明導電薄膜：從發展與應用到製備與分析」，中國化學會季刊 63，409~418頁，2005年

[13] 張家瑋，「銦錫氧化物奈米片條透明導電塗膜製程改善」，碩士論文，淡江大學化學工程與材料工程學系，2014年

[2] S. Tang, J. Yao, J. Chen, J. Luo, Preparation of indium tin oxide (ITO) with a single-phase structure, Journal of Materials Processing Technology 137, 82-85 (2003)

[3] N. Pramanik, S. Das, P. Biswas, The effect of Sn(IV) on transformation of co-precipitated hydrated In(III) and Sn(IV) hydroxides to indium tin oxide (ITO) powder, Materials Letters 56, 671-679 (2002)

[4] B. Kim, S. Kim, J. Lee, J. Kim, Effect of phase transformation on the densification of coprecipitated nanocrystalline indium tin oxide powders, Journal of the American Ceramic Society 85, 2083-8088 (2008)

國際替代計量

聚二氧乙基噻吩/聚苯乙烯磺酸摻混銦錫氧化物奈米複合導電薄膜與水凝膠特性之研究

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