Zhou Jian-Ping, Chen Xiao-Hong, Xu Zheng
School of Power and Automation Engineering, Shanghai University of Electric Power, Shanghai 200090, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2012 Jul;32(7):1865-8.
The improved photocurrent of regioregular poly(3-hexylthiophene) (P3HT) and 6,6-phenyl C61-butyric acid methylester (PCBM) based polymer solar cells (PSCs) using LiF and Al cathode, modified with a reasonable thin Ag layer, was demonstrated. Using an optimal 4nm Ag layer-modified electrode gave 20% improved short-circuit photocurrent density over PSCs with only LiF/Al cathode under AM1.5G illumination of 100 mW x cm(-2). The increased short-circuit photocurrent density is ascribed to plasmon enhancement of the polymer absorption by nanotextured Ag film. The fill factor and open voltage of PSCs using Ag/LiF/Al cathode are decreased compared with the control PSCs with only LiF/Al cathode, which result in the decrease in power conversion efficiency of PSCs modified with Ag film. The possible reason for the deteriorated performance of PSCs with Ag/LiF/Al is stronger carrier recombination at nanotextured Ag.
利用合理厚度的Ag层修饰的基于区域规整性聚（3-己基噻吩）（P3HT）和6,6-苯基-C61-丁酸甲酯（PCBM）的聚合物太阳能电池（PSC），其光电流得到了改善。在100 mW·cm⁻²的AM1.5G光照下，使用4nm Ag层修饰的最佳电极，相比于仅使用LiF/Al阴极的PSC，短路光电流密度提高了20%。短路光电流密度的增加归因于纳米纹理化Ag膜对聚合物吸收的等离子体增强。与仅使用LiF/Al阴极的对照PSC相比，使用Ag/LiF/Al阴极的PSC的填充因子和开路电压降低，这导致了用Ag膜修饰的PSC的功率转换效率降低。Ag/LiF/Al修饰的PSC性能恶化的可能原因是纳米纹理化Ag处更强的载流子复合。
