在本研究中，我們利用表面粗化以及貼覆散射膜等方法提高一平面型發光的有機發光元件(OLED)其出光率以及外部量子效率。
在表面蝕刻製程中我們的調變參數包含蝕刻液種類、蝕刻時間，而粗化後的表面參數則包含表面粗糙度、結構深度、表面輪廓等等；藉由適當地控制體蝕刻製程參數，將可製作具有不同表面特性的基板出光面。
另外在透明散射膜製程中，我們首先測量不同膜厚對於穿透率的影響，進一步排除小範圍膜厚差異對穿透率的影響，再利用摻雜不同濃度的白色二氧化矽粉末控制散射層中散射點的分佈。其次，我們將這些微結構貼附在平面型OLED發光元件玻璃表面上，評估微結構對於促進平面型發光元件輝度效率之成效。並藉由不同視角之輝度測量，討論表面改質對於元件可視角的增益，以及利用積分球量測其對整體光通量的增益。
實驗結果顯示具有最大粗糙度的玻璃表面所製作的發光元件其整體光通量最大；而在散射層部分高濃度散射點摻雜能有效的改善發光元件的視角，並提升整體出光率。

In this thesis,two means to increase the extraction efficiency of the organic light devices via roughening and volumetric light scattering have been presented.
During the etching process we varied the parameters including the etching acid and the etching duration. The structural parameters include surface roughness, the height of microstructures, and the surface morphology of microstructures. Using suitable process parameters of bulk micromachining, a desired pattern could be made on the surface of glass.
In addition, during the process of making the scattering films, we investigated the influence of the film-thickness on the transmittance. To eliminate the differences between the thickness of films that affect the transmittance. Doped with different concentrations SiO2 powders were used to control the distribution of scattering point in the scattering layer.
Eventually, by combining the microstructure with the plane emission OLEDs, we can comment the improvement of luminous efficiency by the microstructure. By changing the viewing angles and measuring the emission of the OLED, the improvement of view angle was discussed.
The experimental results show that the device with the most rough glass surface has the biggest improvement of total output. And the scattering film which has high concentration scattering spot can improve the view angle most.

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