本論文係利用電子槍蒸鍍系統成長布拉格反射鏡(distributed Bragg reflector, DBR)，再將有機發光二極體(organic light emitting diodes, OLED)製作於布拉格反射上，而使有機發光二極體形成共振腔出光形式，最終量測元件之特性。
論文中，我們設計合適布拉格反射鏡，及仔細控制共振腔長度，並利用共振腔長填充物質SiO2，來使得共振腔結構有機發光二極體呈現多共振模態混白光放光。最終結果四模態共振元件在八伏特工作電壓下其色度座標已達到(0.33,0.32)之純白色，且演色性由傳統結構之60.46改善至82.17，且元件在200A/m2工作電流密度下，其發光效率為5.85cd/A，而傳統結構元件之發光效率為4.53cd/A，由此可知藉由共振腔效應可使元件發光效率增加29%。
由實驗結果可以明顯發現，在合理設計及控制共振腔內之各參數，我們可以得到色度較佳之純白光，及同時提升元件出光之演色性以及發光效率。

In this study, we evaporate distributed bragg reflectors (DBR) using e-beam evaporator system, then we fabricate organic light emitting diodes (OLED) on DBR. Our resonant cavity OLED exhibit multimode emission, and spectral narrowing, enhancement of emitting intensity were observed due to the resonant effect. Finally, we measure the characteristic of the devices.
In this study, we design suitable DBR reflector, and control the optical length of resonant cavity carefully. We add SiO2 filler layer to increase optical length, and make the resonant cavity device emit a white color consisting of multimode emission. The yield-current density(Y-J) characteristics of the four modes device showed the yield of 5.85cd/A at operation current density of 200A/m2 and its CIE also showed (x=0.33, y=0.32) at 8Volt with better performance in color-rendering index (CRI) of 82.17. The current efficiency was enhanced by 29% compared with conventional organic light emitting diodes(4.53cd/A) by the resonant effect.
Our results clearly imply that by the reasonable design of the resonant cavity structure, it is possible to realize multimode emission of white organic light emitting diodes with even higher efficiency and better CRI.

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