計畫名稱「結合低維度奈米點/線晶體在新式白光LED 開發之應用研究」,為兩年 期計畫。計畫目的是開發出新一代的白光LED,具有高亮度,製程易操控,以及降低 成本等特點。第一年主力在提升量子點的發光效率,並解決氧化所引起的發光亮度衰 退的問題,研究方法則從改良量子點合成製程著手,及尋找最佳的封裝膠體材料。第 二年主力在提升二極體光源的發光效率,研究方法則是利用合成n-ZnO 奈米線/p-GaN 薄膜的發光二極體進一步提升整體白光二極體的發光效率,並結合第一年的研究成 果,製備出新一代的白光發光二極體。本實驗室目前與工研院化工所在低維度晶體之 合成與表面性質,已有初步的研究合作成果,未來將持續結合雙方之人力與技術,以 製備並改良新型量子點螢光體,另一方面藉由製備ZnO 奈米線,作為UV 光的LED 光 源,開發新架構之白光LED。這種全新的白光LED 設計,一方面可有效提升白光LED 的發光效率,為國際間的能源照明發展提供貢獻;另一方面可掌握關鍵專利,抵制現 今日商惡勢力的壟斷情形,及化解目前國內廠商可能侵權的危機,實具有專利攻防的 重大意義。
The proposal entitled “Fabrication of quantum dots and nanowires for the fluorescence applied to the novel white LED design” is a two-year project. The purpose is to develop a new generation design of white light emitting diodes (WLED) which possess advantages such as high emission intensity, friendly process, and low cost. The goal of the first year is to raise the emission efficiency of quantum dots (QDs) and to solve the decay of emission intensity induced by oxidation. The research will be done by improving the synthesis of QDs and searching the adequate packaging polymer materials. The goal of the second year is to raise the emission efficiency of LED emission source. The research will be done by fabricating a new LED structure consisting of n-ZnO NWs/p-GaN thin film to further increase the integral emission efficiency of the WLED and to develop a new generation of WLED by combining with the result of the first year. Our laboratory has so far had some basic results regarding the fabrication of nanocrystalline materials and the fundamental studies of surface properties, collaborated with ITRI Chemical Engineering Group to combine our expertise and facilities. First is to fabricate and improve the QDs fluorescence and then to develop a new generation of WLED by fabricating ZnO nanowires as a UV LED. On the one hand, the design of the new generation WLED can increase efficiently the WLED emission intensity which can contribute to the main stream of the international energy lightening progress. On the other hand, relevant patents will be filed on the due course to reverse the monopoly situation by the Japanese firms and to resolve the crisis that may take place by violating the laws by the domestic industries.