Photoelectrochemical investigations of C
60
âglycine ester derivative C
60
(C
6
H
9
NO
4
) monolayer-modified SnO
2
electrodes have been carried out. The electrodes were fabricated by the LangmuirâBlodgett (LB) technique. The photocurrent was determined under an atmosphere of high-purity nitrogen since oxygen suppresses the photocurrent. Results show that electrons flow from the electrolyte through the LB film to the SnO
2
electrode. Positive bias voltage and the presence of an electron donor are beneficial factors for generating higher photocurrent. The external quantum yield is ca. 2.5%.
对 C 60 醛甘
氨酸酯衍
生物 C 60 (C 6 H 9 NO 4) 单层修饰 SnO 2 电极进行了光电
化学研究。这些电极是采用 LangmuirâBlodgett (LB) 技术制造的。由于
氧气会抑制光电流,因此光电流是在高纯度氮气环境下测定的。结果表明,电子从电解质通过 LB 薄膜流向 SnO 2 电极。正偏压和电子供体的存在是产生较高光电流的有利因素。外部量子产率约为 2.5%。