中文摘要：

采用z-扫描测试技术研究两代树枝状化合物（G1和G2）的光限幅特性．结果表明，G1的光限幅效应比G2好，是一种有应用前景的光限幅材料．用真空沉积和溶液旋转涂膜的方法，制备了结构为ITO／PEDOT：PSS／G1／PCBM／LiF／Al和ITO／PEDOT；PSS／G2：PCBM（1％）／LiF／Al的有机异质结光伏器件．在100mw／cm^2光强照射下，G1和G2具有相近的光伏性质，相应的能量转化效率为0．012％．

英文摘要：

Optical limiting （OL） performances of two dendrimers （G1 and G2） were studied by z-scan measurement. The results show that G1 has the better OL effect compared to G2 and is considered to be a potential OL material. Organic heterostructure photovoltaic devices with configurations of ITO/PEDOT ： PSS/G1/PCBM/LiF/A1 and ITO/PEDOT ： PSS/G2 ： PCBM（I%）/LiF/A1 were fabricated by the methods of vacuum deposition and spin coating. Both devices with G1 and G2 show the similar photovoltaic performance with a power conversion efficiency of 0. 012% under the illumination of AM1.5, 100 mW/cm^2.