辅助电极
电极
量子点
电解质
介电谱
材料科学
碳纤维
电化学
能量转换效率
纳米技术
化学工程
光电子学
化学
复合材料
物理化学
复合数
工程类
作者
Sudhagar Pitchaimuthu,Easwaramoorthi Ramasamy,Woohyung Cho,Jinwoo Lee,Yong Soo Kang
标识
DOI:10.1016/j.elecom.2010.11.006
摘要
Mesocellular carbon foams (MSU-F-Cs) with a high surface area (911 m2 g−1) and large pores (~ 25 nm) have been used as counter electrodes for CdS/CdSe quantum-dot sensitized solar cells (QD-SSCs). Under 1 sun illumination, the MSU-F-C counter electrode QD-SSC shows a maximum energy conversion efficiency of 1.75%, which is much higher than that of those employing conventional Pt (1.22%) or commercial carbon (0.94%) counter electrodes. Electrochemical impedance spectroscopy analysis shows that the large pores and high surface area of MSU-FC improve the catalytic activity of the counter electrode in polysulfide redox electrolyte.
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