Chen Jheng-Yuan, Yu Ming-Hung, Chang Chih-Yu, Chao Yi-Hsiang, Sun Kien Wen, Hsu Chain-Shu
Department of Applied Chemistry, National Chiao Tung University , 1001 University Road, Hsinchu 30010, Taiwan.
ACS Appl Mater Interfaces. 2014 May 14;6(9):6164-9. doi: 10.1021/am405865w. Epub 2014 Apr 17.
An ITO substrate with periodic surface nanostructures was used to induce strong diffusion and diffraction of incident light. The nanostructures were fabricated using nanoimprint lithography on photoresist followed by coating of the ITO layer and organic materials with uniform morphology. The nanostructures embedded into the ITO layer were found to increase absorption in poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester solar devices. The short-circuit current of the nanostructured organic solar cells improved from 7.07 to 10.76 mA/cm2. This improvement was due to the increased effective optical path of absorbed light resulting from the trapping and scattering by the nanostructures.
具有周期性表面纳米结构的氧化铟锡（ITO）衬底被用于诱导入射光的强扩散和衍射。这些纳米结构是通过在光刻胶上采用纳米压印光刻技术制造的，随后涂覆ITO层和具有均匀形态的有机材料。发现嵌入ITO层的纳米结构增加了聚（3-己基噻吩）：[6,6]-苯基-C61-丁酸甲酯太阳能器件中的光吸收。纳米结构有机太阳能电池的短路电流从7.07提高到10.76 mA/cm²。这种改善归因于纳米结构的捕获和散射导致吸收光的有效光程增加。
