反式結構之透明有機太陽能電池

Abstract

在本論文中，我們嘗試用多層結構製作反式結構有機太陽能電池的透明電極，利用了MoO3(三氧化鉬)/Al(鋁)/Au(金)實現了高穿透性的多層導電電極結構，在可見光波段的穿透度可以達到50 ％以上。由實驗結果，我們發現在有機主動層和金之間加入一層鋁可以有效的改善電極的穿透度和導電度。元件下吸光時開路電壓為0.57 V，短路電流密度為8.63 mA/cm2，填充因子可達0.565，而功率轉換效率可以達到2.78 %，而上吸光時的開路電壓為0.55 V，短路電流密度為3.83 mA/cm2，填充因子為0.514，而功率轉換效率可以達到1.08 %。

We have demonstrated an inverted polymer solar cell, having a multi-layer structure anode. The semi-transparent anode consists of the following structure: MoO3/Al/Au. In the visible spectrum, the transmittance of the anode can is as high as 50 %. We found that inserting a thin Al layer between the organic layer and Au can improve the transmittance and conductivity of the semi-transparent anode. The photovoltaic device exhibited an open circuit voltage(Voc) of 0.57 V, short circuit current density(Jsc) of 8.63 mA/cm2, fill factor(FF) of 0.565, and power conversion efficiency(PCE) of 2.78 % when the light was incident from the ITO side (bottom light-harvested).On the other hand, the Voc was 0.55 V, Jsc was 3.83 mA/cm2, FF was 0.514, and PCE was 1.08 % when the light was incident from the semi-transparent anode (top light-harvested).