本研究在傳統的有機太陽能電池中以熱壓印的方式加入奈米結構， 希望藉由增加有機高分子施體與受體材料的接觸面積，以產生更多的激子來達到更良好的分離效果，期望能分離出更多的電子電洞對來增加電流，進而提升電池的效率。在奈米結構的製作方面，以陽極氧化鋁本身的孔洞結構作為遮罩蝕刻出具奈米結構之矽基板來做為壓印的母模，在特定壓力及溫度下壓印出不同內嵌結構的雙層有機高分子太陽能電池元件。
經過壓印的有機太陽能元件其材料間的接觸面積增加了接近十倍，效率上有顯著的提升，從光吸收率的量測可以看到具奈米結構的元件可以更有效率地捕捉光，而從螢光光譜中則可看到壓印出柱狀結構的元件中激子復合而放出能量的情況減少許多，代表電子電洞對有更好的分散情況。

This study is mainly about to fabricate nanostructure into traditional organic solar cell by using the thermal imprinting technique. This structural installation enlarges the contact area between the donor-accepter interface and is expected to improve the efficiency of the cell since larger amount of excitons are going to be separated into electrons and holes resulting in greater short-circuit current. The imprinting mold is built by the AAO structure silicon mold etched with AAO as mask. Under certain imprinting temperature and pressure we can fabricate bilayer organic solar cell with different embedded structure.
With the nanoimprinting technique applied into organic solar cell, the contact area between materials has gained about ten times larger. Not only shown in the great raise in cell efficiency, the imprinted cells also have better light-trapping ability. Furthermore, according to the photoluminescence measurement we can see that the imprinted devices have lower value of luminescent intensity, which means the probability of exciton recombination has been reduced with the nano-scale pillar-like structure, and such improvement leads to better separation of electron-hole pair.

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