衬底温度对磁控溅射制备DSSCs碳对电极的影响  

EFFECTS OF SUBSTRATE TEMPERATURE ON CARBON COUNTER ELECTRODES FOR DYE-SENSITIZED SOLAR CELLS BY MAGNETRON SPUTTERING

作　　者：刘贵山[1] 刘姝泓[1] 沈晓月[1] 胡志强[1] 姜妍彦[1] 

机构地区：[1]大连工业大学无机非金属材料研究室新材料与材料改性省高校重点实验室新能源材料研究所,大连116034

出　　处：《太阳能学报》2013年第10期1735-1740,共6页Acta Energiae Solaris Sinica

基　　金：国家高科技研究发展(863)计划(2006AA05Z417);辽宁省教育厅重点实验室科技项目(2008S017)

摘　　要：采用双极脉冲磁控溅射法以石墨为靶材在FTO玻璃上制备染料敏化太阳电池(DSSCs)碳对电极。研究衬底温度对碳膜的结构及性能的影响。用四探针测试仪对碳膜的方块电阻进行测试,拉曼光谱分析碳键结构,原子力显微镜对表面形貌进行表征。并组装电池,用太阳光模拟器测试电池的光电性能。实验结果表明:随着衬底温度的升高,sp2碳键含量增多,石墨化程度提高,碳膜表面颗粒长大,表面粗糙度增加,碳膜的方块电阻减小。当衬底温度为400℃时,电池的光电转换率为0.99%。The carbon counter electrodes for dye-sensitized solar cells （DSSCs） were deposited on FTO glass using graphite target by bipolar pulse magnetron sputtering. The effects of substrate temperature on the morphologies and properties for carbon films were investigated. The sheet resistances of carbon films were detected by four point probe. The carbon bond structures were analyzed by Raman spectra. The surface morphologies were observed by atomic force microscopy. The performances of DSSCs were tested by solar simulator. The results indicated that the sp2 carbon-bond content of the carbon films increased, the degree of graphitization raised and the surface grains grew up, roughness increased with the increase of the substrate temperature. Consequently, a higher substrate temperature contributed to reduce the sheet resistances. The cells exhibited excellent photoelectric properties with an overall conversion efficiency of 0.99% when the substrate temperature is 400℃.

关 键 词：染料敏化太阳电池 碳对电极 磁控溅射 衬底温度 

分 类 号：TB43[一般工业技术]