臺灣博碩士論文加值系統

發光二極體(Light-Emitting Diode, LED)由於耗電量低、壽命長，用途廣泛。但由於它在構裝上常於不同材質的界面處會產生反射或全反射現象而降低其光萃率。因此，如何提高LED的發光效益，在重視能源利用率的年代便顯得格外重要。大自然中，草蟬為了避免被天敵捕食，在歷經長時間的演化後在其翅翼上形成了一種特殊的次波長陣列結構能有效降低翅翼表面的反光，達到避敵的作用。本研究以粒徑255nm聚苯乙烯奈米球所翻印的TMPTA增亮層，除能有效降低反射率至0.87%，並保有最高穿光學透率達96.9%，亦能將LED的發光強度提升55%。本研究所提供之製程技術，未來尚能應用於微精密產業與光電產業的發展上。

Light-Emitting Diodes (LEDs) have been widely applied in our daily life because of their low power consumption and long using time. However, the output luminous efficiency was restricted from the reflection or total reflection occurred at the interface of different material layers of the LEDs structure. Therefore, how to improve the luminous efficiency of LEDs is became particularly important in the energy efficiency was focus age. An outstanding anti-reflection characteristics with subwavelength structure (SWS) was developed on the surface of the grass cicada wings after a long period time of evolution in nature. In the study, the brigt ehancement layer which is reproduced by 255nm nanosphere can reduce the reflection to 0.87%, the highest trasmittance to 96.9% and increase the luminous intensity by 55%.The procedures we provided in this study can be developed and applied in the micro-precision and photoelectric industries in the future.

摘要............ i
Abstract............ ii
誌 謝.............. iv
目錄 ................v
表目錄............. vi
圖目錄............ vii
第一章 緒論......... 1
1.1 前言......... 1
第二章 研究步驟與分析........... 5
2.1研究步驟............ 5
2.1.1聚苯乙烯奈米球之合成...........5
2.1.2非緊密單層奈米球陣列模板之製作............5
2.1.3 透明增亮層之製備.........5
2.2 實驗分析.............6
第三章 結果與討論................7
3.1 單層聚苯乙烯奈米球陣列分析........... 7
3.1.1 奈米球之平均粒徑與分析.............7
3.2次波長結構分析.................7
3.2.1氧氣電漿處理時間對奈米球粒徑之影響................7
3.2.3 具BEL結構覆蓋之玻璃的反射與穿透光譜...........7
3.3 具BEL結構對LED發光特性的影響............. 8
第四章 結論............. 10
第五章 未來展望...........11
參考文獻 ................12
英文論文大綱............ 23

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