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首页> 外文期刊>RSC Advances >Organic semiconductor/graphene oxide composites as a photo-anode for photo-electrochemical applications
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Organic semiconductor/graphene oxide composites as a photo-anode for photo-electrochemical applications

机译：有机半导体/氧化石墨烯复合材料作为光电化学应用中的光阳极

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摘要

An intimate physical mixture of graphene oxide (GO) and semiconducting organic molecules like bromophenathrene (BrPh) and bromopyrene (BrPy) was prepared by using a ball milling technique. The structural, microstructural, physical and chemical properties of the mixtures (20 wt% of GO) were analyzed by X-ray diffraction, SEM, FT-IR, TGA and TCSPC studies. Furthermore, the electrochemical properties like AC electrical conductivity, transient photocurrent response (PCTR) and open circuit voltage (OCVD) of the samples were analyzed. It has been observed from TCSPC and OCVD measurements that 20 wt% of GO in the semiconductor composite leads to an enhanced life-time of photo-generated charge carriers. The physical mixture composites exhibit a higher photocurrent than pure BrPh and BrPy.
机译：通过使用球磨技术制备了氧化石墨烯（GO）和半导电有机分子（如溴菲（BrPh）和溴py（BrPy））的紧密物理混合物。通过X射线衍射，SEM，FT-IR，TGA和TCSPC研究分析了混合物（GO的20重量％）的混合物的结构，微结构，物理和化学性质。此外，还分析了样品的电化学性能，如交流电导率，瞬态光电流响应（PCTR）和开路电压（OCVD）。从TCSPC和OCVD测量中已经观察到，半导体复合材料中GO的20 wt％导致光生电荷载流子的使用寿命延长。物理混合物复合材料比纯BrPh和BrPy具有更高的光电流。

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