(1. 常州大學 機械工程學院，常州 213016；
2. 常州大學 材料科學與工程學院，常州 213164)
摘 要: 以膠體晶體為犧牲模板合成反蛋白石結構碳(Inverted opal carbon, IO-C)材料，借助掃描電鏡和透射電鏡分析IO-C材料樣品的形貌和微觀結構，考察對電極中IO-C負載量對染料敏化太陽能電池(Dye-sensitized solar cells，DSSC)光電轉化性能的影響。結果表明：IO-C對電極DSSC的光電性能隨著碳負載量的增加而提高，這可能與電荷轉移電阻的降低有關。在本研究條件下，當碳負載量超過332 μg/cm2時，進一步增大負載量對電池性能的提高并無明顯幫助。相對于商用鉑對電極電池(η=5.61%)，IO-C對電極電池可以獲得相近的光電轉化效率(η=5.27%)。
關鍵字: 反蛋白石結構；大孔碳材料；染料敏化太陽能電池；對電極
（1. School of Mechanical and Energy Engineering, Changzhou University, Changzhou 213016, China;
2. School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China）
Abstract:The inverted opal carbon (IO-C) counter electrodes were fabricated using colloidal crystals as sacrificial templates for DSSC. The morphology and microstructure were characterized by scanning electron microscopy and transmission electron microscopy. The results show that the photovoltaic performances of DSSC with IO-C counter electrodes are improved with the IO-C loading on counter electrode increasing. It may be attributed to the charge-transfer resistance of IO-C counter electrode decreasing with the increase of the IO-C loading. However, further carbon loading increase has no obvious effect on the photovoltaic performance of DSSC when carbon loading exceeds 332 μg/cm2. By comparison with commercial platinum based DSSC (η=5.61%), the IO-C based one exhibits a close conversion efficiency (η=5.27%).
Key words: inverted opal; macroporous carbon material; dye-sensitized solar cell; counter electrode
