本研究探討以P3HT：ICBA以及PTB7：PCBM做為主動層材料之順 / 反轉式有機太陽能電池。反轉式有機太陽能電池之結構異於傳統型有機太陽能電池，在反轉式有機太陽能電池中，透明電極ITO扮演為陰極的腳色，而陽極的部份是用較高的功函數Al；而順式有機太陽能電池則相反。本研究是利用不同厚度的MoO_3當做電洞(順式) / 電子(反式)傳輸層，再搭配旋轉塗佈完主動層後製程方式的不同，製成元件以此比較光電轉換效率的優劣。
在主動層為P3HT：ICBA時，反式元件的結構為ITO / ZnO / P3HT：ICBA / MoO_3 / Al；順式元件為ITO / MoO_3 / P3HT：ICBA / ZnO / Al。實驗A：先嘗試做在同MoO_3厚度的情況下(分5nm和10nm)，藉由1.旋轉塗佈 ZnO+主動層後，一起熱退火；2.旋轉塗佈 ZnO後先熱退火，再旋轉塗佈主動層後再熱退火，比較1和2哪種方式效率較好。結果是情況1較好，因此做為製程條件。實驗B：在MoO_3厚度為10nm的情況下，ZnO對順反式元件的影響。實驗C：針對MoO_3厚度的變化讓順反式有機太陽能元件使其效率有所提升。實驗結果為：在反式元件中，MoO_3厚度為20nm其效率可達到4.23％；順式元件則是在MoO3厚度為5nm其效率為2.18％最好。
在主動層為PTB7：PCBM時，反式元件的結構為ITO / ZnO / PTB7：PCBM / MoO_3 / Al；順式元件為ITO / MoO_3 / PTB7：PCBM / ZnO / Al，此實驗方式同上。實驗結果為：在反式元件中，MoO_3厚度為5nm其效率可到3.06％；順式元件則是在MoO_3厚度為20nm其效率可達到3.7％。實驗D：最後在不同的結構下的總比較。
電性量測方面，本實驗於光照(illuminated)之環境下量測元件之電流電壓特性。光照情況下所得之電流電壓特性簡稱為亮電流電壓特性，從其中可取出串聯電阻、並聯電阻與各項光伏參數，包括短路電流密度、開路電壓、填充因子與光電轉換效率。1.利用吸收光譜儀可看出順反式元件在紫外光-可見光波段下的吸收強度，藉此可比較出ZnO對順/反式元件哪方比較有利。2.接著使用原子力顯微鏡(AFM)比較結構不同的順反式元件的表面形貌和粗糙程度，結果顯示因為ZnO奈米粒子是由正丁醇當作溶劑，可正丁醇對主動層會有侵蝕的效過使得表面粗糙程度加大，因此對MoO_3為10nm下，反式元件效率比起順式來的好。3.利用外部量子效率(EQE)來證明，順/反式元件在不同主動層下，哪種元件轉換效率來的最好。

Zinc oxide (ZnO) is used to fabricate regular/inverted organic solar cells to compare differences in power conversion efficiency. To determine whether the power conversion efficiency is improved, an experimental design process is implemented to change the thickness of molybdenum trioxide (MoO3). The results of experiments (A), (B), and (C) are reported. In (A), an attempt is made to determine which experimental conditions are more favorable for the device. The experimental design used once or twice thermal annealing at the “active layer and ZnO.” In (B), when the thickness of MoO3 is fixed at 10 nm and different active layers are used, the power conversion efficiency of inverted organic solar cell is found to be better than that of a regular device. In (C), when an active layer is P3HT:ICBA, the power conversion efficiency of an inverted solar cell can reach 4.23% at 20 nm of MoO3. By contrast, a regular device has the best efficiency of 2.18% at a 5 nm of MoO3. When an active layer is PTB7:PCBM, the power conversion efficiency of an inverted solar cell can reach 3.06% when thickness of MoO3 is 5nm. Meanwhile, a regular device has the best efficiency of 3.7% at 20 nm thickness of MoO3.

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