Photoelectric response of a gold electrode modified with self-assembled monolayers of pyrrolidinofullerenes
作者:Sheng Zhang、Dong Dong、Liangbing Gan、Zhongfan Liu、Chunhui Huang
DOI:10.1039/b007198f
日期:——
Three
new fullerene derivatives 1, 2 and 3 have been synthesized, which can form stable self-assembled monolayers
(SAMs) on a gold surface. These SAMs were characterized by contact angle measurements and scanning tunneling
microscopy. The photoelectric conversion properties of the SAMs have also been investigated. Photocurrent action spectra show that the excited fullerene derivatives 1, 2 and 3 act as photoactive species in the photoinduced electron transfer process. Factors such as intensity of irradiation and bias voltage have been
studied.
The quantum yields of the SAMs range from 2.9 to 14.9% under the most favorable conditions.
合成了三种新的富勒烯衍生物1、2和3,它们能在金表面形成稳定的自组装单分子层(SAMs)。通过接触角测量和扫描隧道显微镜对这些SAMs进行了表征。同时还研究了SAMs的光电转换性能。光电流作用光谱表明,激发态的富勒烯衍生物1、2和3在光诱导电子转移过程中起到了光活性物质的作用。研究了光照强度和偏置电压等因素的影响。在最优条件下,这些SAMs的量子产率在2.9%到14.9%之间。