Preparation, Characterization, and Photoelectric Properties of a Covalently Self-Assembled Monolayer of Ferrocenyl Hemicyanine

Authors: Li, Lin-Ying; Chen, Xi; Xu, Meng-Yun; Zhang, Qian-Jin; Wang, Ke-Zhi

Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 11, November 2011 , pp. 9997-10002(6)

Publisher: American Scientific Publishers

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Abstract:

A monolayer of a ferrocenyl hemicyanine was covalently self-assembled on an indium tin oxide (ITO)-coated glass substrate, and was characterized by UV/Vis absorption and X-ray photoelectron spectroscopy, and cyclic voltammetry. The photoelectrochemical properties and mechanism of photocurrent generation have also been studied. This monolayer film was found to exhibit a large anodic photocurrent density of 0.13 μA/cm² with the highest photoelectric yield of 3.32% under irradiation of white light (730 nm > λ > 325 nm) at a bias potential of +0.4 V versus saturated calomel electrode.

Keywords: SELF-ASSEMBLED FILM; FERROCENE; HEMICYANINE; PHOTOELECTRIC PROPERTY

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2011.5722

Publication date: 2011-11-01

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