(1. 常州大學(xué) 機(jī)械工程學(xué)院，常州 213016；
2. 常州大學(xué) 材料科學(xué)與工程學(xué)院，常州 213164)
摘 要: 以膠體晶體為犧牲模板合成反蛋白石結(jié)構(gòu)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(jié)構(gòu)，考察對(duì)電極中IO-C負(fù)載量對(duì)染料敏化太陽(yáng)能電池(Dye-sensitized solar cells，DSSC)光電轉(zhuǎn)化性能的影響。結(jié)果表明：IO-C對(duì)電極DSSC的光電性能隨著碳負(fù)載量的增加而提高，這可能與電荷轉(zhuǎn)移電阻的降低有關(guān)。在本研究條件下，當(dāng)碳負(fù)載量超過(guò)332 μg/cm2時(shí)，進(jìn)一步增大負(fù)載量對(duì)電池性能的提高并無(wú)明顯幫助。相對(duì)于商用鉑對(duì)電極電池(η=5.61%)，IO-C對(duì)電極電池可以獲得相近的光電轉(zhuǎn)化效率(η=5.27%)。
關(guān)鍵字: 反蛋白石結(jié)構(gòu)；大孔碳材料；染料敏化太陽(yáng)能電池；對(duì)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
