还原氧化石墨烯/Au复合微电极阵列的制备及光电特性

Preparation of Reduced-graphene-oxide/Au Composite Microelectrode Array and Its Optical and Electrical Characteristics

利用双光束干涉-无掩模光刻技术制备了周期性氧化石墨烯微结构阵列,利用肼蒸气对氧化石墨烯脱氧还原,然后蒸镀超薄Au薄膜制备了还原氧化石墨烯/Au复合微电极阵列(R-GO/Au).对复合电极在可见光波段的透过率和表面电阻进行了表征,结果表明,R-GO/Au复合微电极阵列具有良好的光电特性.将R-GO/Au复合微电极阵列引入到有机太阳电池中作为半透明阳极,器件的光电转化效率可达3.43%.

The reduced-graphene-oxide/Au（ R-GO/Au） composite microelectrode array was fabricated by a simple method. The graphene oxide（ GO） array was prepared by two beam interference-holographic lithography technique,and then reduced by hydrazine vapor to partially remove the oxygen-containing groups. Ultrathin Au film was deposited on the reduced-graphene-oxide（ R-GO） array to improve its conductivity. The results indicate that R-GO/Au composite microelectrode array exhibits excellent surface morphology with precisely controlled period and high resolution,good transparency in visible light region and high conductivity. The organic photovoltaic device based on the R-GO/Au composite microelectrode array exhibits a high power conversion efficiency of 3. 43%.