双功能介孔氮掺杂石墨烯泡沫作为染料敏化太阳能电池对电极材料
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- 英文论文题名：Dually functional,N-doped porous graphene foams as counter electrodes for dye-sensitized solar cells
- 论文作者：宋隆 ; 罗强 ; 赵飞 ; 李阳 ; 林红 ; 曲良体 ; 张志攀
- 英文论文作者：Long Song ; Qiang Luo ; Fei Zhao ; Yang Li ; Hong Lin ; Liangti Qu ; Zhipan Zhang ; Department of Chemistry ; Beijing Institute of Technology ; Department of Material Science and Engineering ; Tsinghua University
- 年：2016
- 作者机构：北京理工大学;清华大学;
- 论文关键词：介孔氮掺杂石墨烯泡沫 ; 染料敏化太阳能电池 ; 含碘电解液 ; 含硫电解液
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十九分会：纳米碳材料
- 语种：中文
- 分类号：TM914.4;O646
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十九分会 ; 纳米碳材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：139k
- 原文格式：D
- 会议级别：全国
摘要
我们利用水热法合成了介孔氮掺杂石墨烯泡沫,作为染料敏化太阳能电池对电极材料使用。塔菲尔极化测试和交流阻抗谱测试表明,这种材料在传统的含碘电解液和新型的含硫电解液中都能够有效催化对电极上的氧化还原反应,全电池的光电转化效率分别为4.5%和2.1%。这些结果为发展新型的非金属的染料敏化太阳能电池对电极材料提供了新思路。
A series of nitrogen-doped porous graphene foams(NPGFs) have been prepared by hydrothermally treating a mixed solution of graphite oxide(GO) and ammonia. The NPGFs are used as the counter electrode(CE) material for dye-sensitized solar cells(DSCs) in conjunction with the conventional iodide-based electrolyte and the recently developed sulfide-based electrolyte. Tafel-polarization tests and electrochemical impedance spectroscopic(EIS) measurements confirmed that the NPGFs work efficiently in both electrolyte systems, and under air mass(AM) 1.5G100 mW cm~(-2) light illumination, optimal efficiencies of 4.5% and 2.1% were obtained for the iodide-based electrolyte and sulfide-based electrolyte, respectively. To the best of our knowledge, this is the first study on N-doped graphene CEs in conjunction with sulfide-based electrolytes and therefore, the current results are deemed to provide new insights into developing novel low-cost and metal-free CEs for DSCs.
A series of nitrogen-doped porous graphene foams(NPGFs) have been prepared by hydrothermally treating a mixed solution of graphite oxide(GO) and ammonia. The NPGFs are used as the counter electrode(CE) material for dye-sensitized solar cells(DSCs) in conjunction with the conventional iodide-based electrolyte and the recently developed sulfide-based electrolyte. Tafel-polarization tests and electrochemical impedance spectroscopic(EIS) measurements confirmed that the NPGFs work efficiently in both electrolyte systems, and under air mass(AM) 1.5G100 mW cm~(-2) light illumination, optimal efficiencies of 4.5% and 2.1% were obtained for the iodide-based electrolyte and sulfide-based electrolyte, respectively. To the best of our knowledge, this is the first study on N-doped graphene CEs in conjunction with sulfide-based electrolytes and therefore, the current results are deemed to provide new insights into developing novel low-cost and metal-free CEs for DSCs.
引文
[1]Hu C.G,Cheng H.H,Zhao Y.Adv.Mater.2012,24:5493-5498.
[2]胡传刚,程虎虎,赵扬.先进材料.2012,24:5493-5498.
[2]胡传刚,程虎虎,赵扬.先进材料.2012,24:5493-5498.