中国物理B ›› 2008, Vol. 17 ›› Issue (8): 3143-3148.doi: 10.1088/1674-1056/17/8/062
彭俊彪1, 於黄忠2
Yu Huang-Zhong(於黄忠)a)b)† and Peng Jun-Biao(彭俊彪)a)
摘要: This paper studies the self-organization of the polymer in solar cells based on poly(3-hexylthiophene): [6, 6]-phenyl C$_{61}$-butyric acid methyl ester by controlling the growth rate of active layer. These blend films are characterized by UV-vis absorption spectroscopy, charge-transport dark $J-V$ curve, x-ray diffraction pattern curve, and atomic force microscopy. The results indicate that slowing down the drying process of the wet films leads to an enhanced self-organization, which causes an increased hole transport. Increased incident light absorption, higher carrier mobility, and balanced carrier transport in the active layer explain the enhancement in the device performance, the power conversion efficiency of 3.43{\%} and fill factor up to 64.6{\%} are achieved under Air Mass 1.5, 100\,mW/cm$^{2}$.
中图分类号: (Photoelectric conversion)