氧化銦與鋁膜圖型陽極螢光粉上對場發射元件特性之研究

The study of In2O3 thin film and Al pattern on phosphors anode in field emission device

鄭力瑋(Li-Wei Zheng)

指導教授 ： 蔡五湖

大同大學/電機資訊學院/光電工程研究所/碩士(2009年)

摘要

本論文主要研究塗覆氧化銦薄膜對於螢光粉之影響。利用奈米碳管的極佳物理特性(高電流密度及低導通電場)來製作平面光源的電子發射端。運用厚膜網印技術，在玻璃基板上完成二極式場發射背光元件，而且有系統地研究元件性能。分析陰極圖型中多鋸齒型的電子發射端，在圖形的邊緣對於場發射電流密度的影響，並和傳統條狀圖型做比對。
在白光螢光粉上進行塗覆氧化銦薄膜以及鍍鋁膜圖型當作導電層，具有製程簡單及確實的優點，且可達到降低場發射元件中表面電荷的累積及提升自身的壽命。
從實驗結果得知陰極CNT鋸齒圖型在電流及亮度是優於傳統條狀，而長週期、邊長越長的鋸齒圖形表現為最佳。從這篇論文中我們成功的証實了塗覆氧化銦以及鍍鋁膜製程，在陽極螢光粉上提升發光效率以及改善螢光粉老化時間。

關鍵字

螢光粉

並列摘要

The major purpose of this thesis is to investigate the effect of In2O3 thin film coating on the phosphor. With the excellent physical properties of carbon nano-tubes, such as high current density and low turn-on electric field, it can be used to be the electron emitter of the flat light source. Diode structure has been carried out by thick-film printing technology to systematically study the performance. Different sawtooth patterns are used to analyze the electrons emitted by the cathode pattern edges and the current densities are compared with that of strip cathode structure.
To reduce surface charge and improved the life time of such a field emitting light unit, In2O3 thin film and aluminium pattern have been coating on the phosphor anode layer by simple and reliable methods to carry out the experimental.
The result shows current density and brightness of sawtooth cnt cathode structure we prepared are better than simple strip cathode structure, and the longer sawtooth period with increasing edge length exhibits the better result. Luminescent enhancement and decaying time improvement of the phosphor anode layer have been demonstrated and discussed in this thesis.

並列關鍵字

phosphor

參考文獻

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