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简单的二次沉积,以改善量子点载荷在制造量子点太阳能电池
Wei Wang1, Lianjing Zhao1, Yuan Wang1
1Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , China.
Journal of the American Chemical Society
|February 26, 2019
概括
高性能量子点太阳能电池需要足够的量子点负载. 使用表面活性剂处理和二次沉积的新表面工程方法显著增加了二氧化电极上的量子点负荷.
科学领域:
- 材料科学
- 可再生能源
- 纳米技术
背景情况:
- 高性能量子点敏感太阳能电池 (QDSC) 取决于预先合成的量子点 (QD) 充足地加载到中孔二氧化 (TiO2) 电极上.
- 目前用于QD加载的方法可能无法达到最佳设备性能的足够密度.
研究的目的:
- 开发一种用于增加半孔TiO2膜的QD负荷的通用方法.
- 通过改善QD表面覆盖,提高QDSC的性能.
主要方法:
- 使用表面活性剂处理调整泽塔电位的半孔TiO2电极的表面工程.
- 在 TiO 2光电极上二次沉积 QD.
- 使用增强的QD加载策略制造QDSC.
主要成果:
- 表面活性剂治疗有效地改变了预感应的TiO2>的zeta潜力,使得额外的QDs能够成功沉积.
- 开发的二次沉积策略是多用途的,适用于各种类型的QD.
- 一个采用Zn-Cu-In-Se QD的QDSC在标准AM 1.5G阳光下实现了10.26%的认证功率转换效率.
结论:
- 通过表面活性剂处理和二次沉积的表面工程是一种可行的方法,可以显著增加TiO2>光电极的QD负荷.
- 这种方法为制造高性能QDSC提供了一种总体策略,提高了效率.
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