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高效的CdS量子点感应太阳能电池基于经过修改的聚硫化物电解质.

Ling Li1, Xichuan Yang, Jiajia Gao

  • 1State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 2 Linggong Road, 116012 Dalian, China.

Journal of the American Chemical Society
|May 11, 2011
PubMed
概括

硫化 (CdS) 量子点敏化太阳能电池 (QDSSCs) 使用一种新的聚硫化氧化还原对实现了创纪录的3.2%的能量转换效率. 这种QDSSC技术的进步为未来的太阳能应用提供了有前途的潜力.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学
  • 可再生能源可再生能源是可再生能源.

背景情况:

  • 量子点敏感太阳能电池 (QDSSC) 是一个有前途的光伏技术.
  • 有效的氧化还原电解质对于QDSSC的性能至关重要.
  • 有机溶剂在QDSSC制造中具有优势.

研究的目的:

  • 为CdS QDSSCs开发和评估一种新的聚硫化物氧化还原对.
  • 提高QDSSCs的能量转换效率和填充因子.
  • 研究基于有机溶剂的制造对TiO2薄膜特性的影响.

主要方法:

  • 制造CdS QDSSC使用CdS量子点,通过硫糖酸对纳米的TiO2进行共价连接.
  • 在3 - - 甲基烯酸中使用一种改性聚硫化物氧化还原对,四甲基硫化物/聚硫化物 ([(CH3) 4N] 2S/[(CH3) 4N] 2Sn),在3-甲基烯酸中.
  • 在有机溶剂中沉积化学浴,用于QDSSC制备.

主要成果:

  • 在AM 1.5G照明下,实现了前所未有的高达3.2%的能量转换效率.
  • 在优化的QDSSC中观察到0.89的非常高的填充系数.
  • 由于有机溶剂加工,证明了TiO2薄膜的高可湿性和优越透性.

结论:

  • 经过修改的多硫化物氧化还原对和基于有机溶剂的制造显著提高了QDSSC的性能.
  • 具有共价连接和优化的电解质的CdS QDSSC显示出高效率和填充因子.
  • 这项研究为开发高效和稳定的QDSSC提供了一条可行的途径.