Photoelectrochemical properties of a new C60 derivative: C60–glycine ester C60(C6H9NO4 )

Abstract

Photoelectrochemical investigations of C ₆₀ –glycine 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 Langmuir–Blodgett (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%.