高效率CdS/CdSe共敏化Zn_2SnO_4大孔太阳电池研究  

High efficient CdS/CdSe co-sensitized Zn_2SnO_4 macropore solar cell

作　　者：饶华商 王玉芬[1] 陈洪燕[1] 匡代彬[1] 

机构地区：[1]中山大学化学与化学工程学院,广州510275

出　　处：《中国科技论文》2014年第3期279-282,共4页China Sciencepaper

基　　金：高等学校博士学科点专项科研基金资助项目(20100171110014;20110171120026)

摘　　要：以聚苯乙烯(PS)微球为模板,通过水热合成法制备了Zn2SnO4大孔材料。SEM显示其孔径为约200nm,壁厚约70nm,且制备成电极后大孔分布均匀,结构保持完整。然后电沉积法制备了CdS/CdSe共敏化大孔Zn2SnO4电极,EDS mapping显示CdS/CdSe在整个截面分布均匀。以多硫电对为电解液,Pt负载FTO为对电极,组装太阳电池,改变不同CdS沉积电流后,得到最高效率为1.91%。A Zn2SnO4macroporousphotoanode material has been synthesized through hydrothermal method using polystyrene microspheres as the template. As confirmed by SEM images, the macroporestrucyure is homogeneous with a 200 nm pore size and 70 nm thickness. Furthermore, electrodeposition method was used to fabricate the CdS/CdSe quantum dot （QD） sensitized Zn2 SnO4 macroporous material electrodes. EDS mapping showed that the quantum dots were distributed homogeneously between the photoanodes. The as-prepared QD sensitized Zn2 SnO4macroporous material electrodes achieved a high power conversion effi ciency of 1.91~ by using a Pt FFO counte^electrode and polysulfide electrolyte. The eleetrodeposition current density of CdS QD was optimized.

关 键 词：物理化学 大孔Zn2SnO4 量子点敏化太阳电池 CDS CdSe异质结 

分 类 号：TQ132.41[化学工程—无机化工] TM914.4[电气工程—电力电子与电力传动]