Electrochemical grafting of TiO2-based photo-anodes and its effect in dye-sensitized solar cells
作者： Torben Lund , Phuong Tuyet Nguyen , Thomas Ruhland
DOI: 10.1016/J.JELECHEM.2015.10.021
关键词:
摘要: Abstract We demonstrate that hydroxyl-groups which are located on the surfaces of mesoporous metal oxides (in particular sintered layers F-doped tin oxide (FTO) and TiO 2 glass plates) capable undergoing reactions with 4-nitrobenzene radicals. The highly reactive benzene radicals generated by electrochemical reduction 4-nitrobenzenediazonium tetrafluoroborate in acetonitrile. found grafting were chemically inert to strong acids bases. grafted characterized analyzed cyclic voltammetry (CV), attenuated total reflectance Fourier transform infrared spectroscopy (ATR–FTIR), X-ray photo electron (XPS), scanning microscopy (SEM), energy-dispersive (EDX). Implementation electrochemically particles as photo-anodes dye-sensitized solar cells (DSCs) showed surface is suppressing undesired back-electron-transfer processes cells.
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