...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ACS applied materials & interfaces >Alloying Strategy in Cu-In-Ga-Se Quantum Dots for High Efficiency Quantum Dot Sensitized Solar Cells
【24h】

Alloying Strategy in Cu-In-Ga-Se Quantum Dots for High Efficiency Quantum Dot Sensitized Solar Cells

机译：高效量子点敏化太阳能电池Cu-In-Ga-SE量子点中的合金策略

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

I-III-VI2 group "green" quantum dots (QDs) are attracting increasing attention in photoelectronic conversion applications. Herein, on the basis of the "simultaneous nucleation and growth" approach, Cu-In-Ga-Se (CIGSe) QDs with light harvesting range of about 1000 nm were synthesized and used as sensitizer to construct quantum dot sensitized solar cells (QDSCs). Inductively coupled plasma atomic emission spectrometry (ICP-AES), wild-angle X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) analyses demonstrate that the Ga element was alloyed in the Cu-In-Se (CISe) host. Ultraviolet photoelectron spectroscopy (UPS) and femtosecond (fs) resolution transient absorption (TA) measurement results indicate that the alloying strategy could optimize the electronic structure in the obtained CIGSe QD material, thus matching well with TiO2 substrate and favoring the photogenerated electron extraction. Open circuit voltage decay (OCVD) and impedance spectroscopy (IS) tests indicate that the intrinsic recombination in CIGSe QDSCs was well suppressed relative to that in CISe QDSCs. As a result, CIGSe based QDSCs with use of titanium mesh supported mesoporous carbon counter electrode exhibited a champion efficiency of 11.49% (J(sc) = 25.01 mA/cm(2), V-oc = 0.740 V, FF = 0.621) under the irradiation of full one sun in comparison with 9.46% for CISe QDSCs.
机译：I-III-VI2组“绿色”量子点（QDS）在光电转换应用中吸引了不断的关注。在此，基于“同时成核和生长”方法，合成具有约1000nm的光收获范围的Cu-In-Ga-Se（CIGSe）QD，并用作敏化剂以构建量子点敏化太阳能电池（QDSC） 。电感耦合等离子体原子发射光谱法（ICP-AES），野角X射线衍射（XRD）和X射线光电子谱（XPS）分析表明，GA元件在Cu-In-SE中合金化（CISE）主持人。紫外线光电子谱（UPS）和飞秒（FS）分辨率瞬态吸收（TA）测量结果表明，合金策略可以优化所获得的缩屈QD材料中的电子结构，从而与TiO 2基板良好匹配并有利于光发生的电子提取。开路电压衰减（OCVD）和阻抗光谱（IS）测试表明，CIGSE QDSC中的固有重组相对于CISE QDSCS在CISE QDSC中很好地抑制。结果，基于CIGSE的QDSCS使用钛网孔支撑的介孔碳计量电极表现出11.49％（J（SC）= 25.01mA / cm（2），V-OC = 0.740V，FF = 0.621）的冠军效率与Cise QDSC的9.46％相比，全阳光照射。

著录项

  • 来源
  • 作者

    Peng Wenxiang; Du Jun; Pan Zhenxiao; Nakazawa Naoki; Sun Jiankun; Du Zhonglin; Shen Gencai; Yu Juan; Hu Jin-Song; Shen Qing; Zhong Xinhua;

  • 作者单位

    East China Univ Sci &

    Technol Sch Chem &

    Mol Engn Key Lab Adv Mat Shanghai 200237 Peoples R China;

    East China Univ Sci &

    Technol Sch Chem &

    Mol Engn Key Lab Adv Mat Shanghai 200237 Peoples R China;

    East China Univ Sci &

    Technol Sch Chem &

    Mol Engn Key Lab Adv Mat Shanghai 200237 Peoples R China;

    Univ Electrocommun Dept Engn Sci Tokyo 1828585 Japan;

    Chinese Acad Sci Beijing Natl Lab Mol Sci Inst Chem Key Lab Mol Nanostruct &

    Nanotechnol Beijing 100190 Peoples R China;

    East China Univ Sci &

    Technol Sch Chem &

    Mol Engn Key Lab Adv Mat Shanghai 200237 Peoples R China;

    East China Univ Sci &

    Technol Sch Chem &

    Mol Engn Key Lab Adv Mat Shanghai 200237 Peoples R China;

    East China Univ Sci &

    Technol Sch Chem &

    Mol Engn Key Lab Adv Mat Shanghai 200237 Peoples R China;

    Chinese Acad Sci Beijing Natl Lab Mol Sci Inst Chem Key Lab Mol Nanostruct &

    Nanotechnol Beijing 100190 Peoples R China;

    Univ Electrocommun Dept Engn Sci Tokyo 1828585 Japan;

    East China Univ Sci &

    Technol Sch Chem &

    Mol Engn Key Lab Adv Mat Shanghai 200237 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学工业;
  • 关键词

    photovoltaic cells; quantum dot sensitized solar cells; Cu-In-Ga-Se (CIGSe) QDs; alloying strategy; high efficiency;

    机译：光伏电池;量子点敏化太阳能电池;Cu-In-Ga-SE（CIGSE）QD;合金策略;高效率;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号