氮掺杂石墨烯阴极材料在染料敏化太阳能电池上的应用（英文）
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- 论文作者：翟鹏 ; 冯宪平 ; 卫子健
- 年：2017
- 作者机构：School of Science,Northwestern Polytechnical University;Department of Mechanical Engineering,The University of Hong Kong;Department of Chemical Engineering,National Tsing-Hua University;
- 英文论文关键词：Nitrogen doped ; graphene ; electrocatalytic activity ; wettable ; dye-sensitized solar cells
- 会议召开时间：2017-05-27
- 会议录名称：第四届新型太阳能电池学术研讨会论文集
- 英文会议录名称：Abstract Book of the 4th Conference on New Generation Solar Cells
- 语种：英文
- 分类号：TM914.4
- 学会代码：ZKYQ
- 会议名称：第四届新型太阳能电池学术研讨会
- 会议地点：中国北京
- 主办单位：中国可再生能源学会光化学专业委员会
- 学会名称：中国科学院物理研究所清洁能源实验室
- 页数：1
- 文件大小：970k
- 原文格式：D
- 会议级别：全国
摘要
In this paper, high electrocatalytic and wettable nitrogen-doped microwave-exfoliated graphene(NG) nanosheets are used as Pt-free counter electrode(CE) for dye-sensitized solar cells(DSSCs).A low cost solution-based process has been developed by using cyanamide(NH_2CN) at room temperature and normal pressure.The pyrrolic and pyridinic N atoms are doped into the carbon conjugated lattice to enhance electrocatalytic activity.NG film having N-doping active sites and large porosity provides a wettable surface to facilitate electrolyte diffusion so that improves fill factor.Moreover, we found that the control of the air exposure time after completing NG film is crucial to obtain a reliable NG CE.A high DSSC efficiency up to 7.18% can be achieved based on NG CE, which is nearly comparable to conventional Pt CE.
In this paper, high electrocatalytic and wettable nitrogen-doped microwave-exfoliated graphene(NG) nanosheets are used as Pt-free counter electrode(CE) for dye-sensitized solar cells(DSSCs).A low cost solution-based process has been developed by using cyanamide(NH_2CN) at room temperature and normal pressure.The pyrrolic and pyridinic N atoms are doped into the carbon conjugated lattice to enhance electrocatalytic activity.NG film having N-doping active sites and large porosity provides a wettable surface to facilitate electrolyte diffusion so that improves fill factor.Moreover, we found that the control of the air exposure time after completing NG film is crucial to obtain a reliable NG CE.A high DSSC efficiency up to 7.18% can be achieved based on NG CE, which is nearly comparable to conventional Pt CE.
In this paper, high electrocatalytic and wettable nitrogen-doped microwave-exfoliated graphene(NG) nanosheets are used as Pt-free counter electrode(CE) for dye-sensitized solar cells(DSSCs).A low cost solution-based process has been developed by using cyanamide(NH_2CN) at room temperature and normal pressure.The pyrrolic and pyridinic N atoms are doped into the carbon conjugated lattice to enhance electrocatalytic activity.NG film having N-doping active sites and large porosity provides a wettable surface to facilitate electrolyte diffusion so that improves fill factor.Moreover, we found that the control of the air exposure time after completing NG film is crucial to obtain a reliable NG CE.A high DSSC efficiency up to 7.18% can be achieved based on NG CE, which is nearly comparable to conventional Pt CE.
引文