敏化太阳能电池中石墨对电极制备与性能

1.青海大学 机械工程学院,青海 西宁 810016; 2.青海大学 化工学院,青海 西宁 810016

敏化太阳能电池; 石墨; 对电极

Preparation and properties of graphite counter electrodes for dye-sensitized solar cells
NAN Hui1,WANG Gang2,ZHAO Mei-ling1,CHEN Hui-yuan2

(1.School of Mechanical Engineering,Qinghai University,Xining 810016,China; 2.School of Chemical Industry,Qinghai University,Xining 810016,China)

dye-sensitized solar cell; graphite; counter electrodes

备注

纳米材料具有特殊的物理化学性能,发展迅速,具有催化功能的纳米石墨材料更是在电催化领域应用广泛。文中以纳米石墨为原料,采用球磨、匀浆、超声-旋转等方法制备廉价的石墨材料替代铂作为敏化太阳能电池(DSC)的对电极,并将其组装成电池进行光电性能测试,探讨了不同制备方法对纳米石墨形貌与光电性能的影响,实验结果表明:用超声-旋转法制备的石墨材料组装的电池性能最佳,与铂对电极组装的电池相比较,在一个标准太阳光下的光电转换效率达到铂对电极DSC的80.3%.

Nano-materials with special physical and chemical performance are developed rapidly during the past decades,among numerous nano-materials,graphite in nano-scale is widely applied in electrocatalysis area.In this article,dye sensitized solar cells have been fabricated with graphite counter electrodes prepared by the methods of ball mill,pulp-refiner and ultrasonic disruptor.The effects of different preparation methods for nano graphite surfactant and the photovoltaic performance was studied.I-V measurements results showed that the light-to-energy conversion efficiency of the cells assembly of graphite counter electrodes with ultrasonic disruptor reached up to 80.3% of that with Pt counter electrodes under AM1.5 and 100 mW/cm2 illumination.