...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Enhancing the efficiency of perovskite solar cells using mesoscopic zinc-doped TiO2 as the electron extraction layer through band alignment
【24h】

Enhancing the efficiency of perovskite solar cells using mesoscopic zinc-doped TiO2 as the electron extraction layer through band alignment

机译：通过带对准使用介透视锌掺杂TiO2作为电子提取层的钙钛矿太阳能电池的效率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Lead halide perovskite-structured solar cells (PSCs) have drawn great attention due to a rapid improvement in their photoelectric conversion efficiency in recent years. In this study, we have enhanced photovoltaic performance by using mesoscopic zinc-doped TiO2 (meso-Zn:TiO2) as the electron extraction layer. Zn:TiO2 nanoparticles (Zn:TiO2 NPs) with various zinc doping levels were synthesized by combining sol-gel and hydrothermal methods. The synthesized Zn:TiO2 NPs were used to fabricate electron extraction layers by a screen-printing method. We systematically investigated the surface morphology, crystal structure, contact angle, charge carrier dynamics, electron mobility, and electrical conductivity of various meso-Zn:TiO2. Furthermore, photo-assisted Kelvin probe force microscopy (KPFM) was used to analyze the surface potential of perovskite films coated with various meso-Zn:TiO2 to understand the electron extraction behavior under the illumination of light at various wavelengths. Moreover, the energy levels of various meso-Zn:TiO2 were estimated by ultraviolet photoelectron spectroscopy (UPS) and UV-vis absorption spectroscopy. We discovered that the 5.0 mol% meso-Zn:TiO2 exhibited the optimal band alignment with perovskite. Finally, the average power conversion efficiency (PCE) of PSCs with meso-Zn:TiO2 was enhanced from 13.1 to 16.8%, and such fabricated PSC yielded a champion PCE of 18.3%.
机译：铅卤化铅钙钛矿结构化太阳能电池（PSC）由于近年来其光电转换效率的快速提高而引起了很大的关注。在这项研究中，我们通过使用介观锌掺杂TiO 2（Meso-Zn：TiO 2）作为电子提取层来增强光伏性能。通过组合溶胶 - 凝胶和水热方法合成具有各种锌掺杂水平的Zn：TiO2纳米颗粒（Zn：TiO2 NPS）。合成的Zn：TiO2 NP通过丝网印刷方法制造电子提取层。我们系统地研究了各种Meso-Zn：TiO2的表面形态，晶体结构，接触角，电荷载体动力学，电子迁移率和导电性。此外，使用光辅助的开尿林探针力显微镜（KPFM）来分析涂覆有各种Meso-Zn：TiO2的钙钛矿膜的表面电位，以了解各种波长的光照下的电子提取行为。此外，通过紫外光电和UV-Vis吸收光谱估计各种Meso-Zn：TiO2的能量水平和UV-Vis吸收光谱。我们发现5.0mol％Meso-Zn：TiO2表现出与Perovskite的最佳带对准。最后，使用Meso-Zn：TiO 2的PSC的平均功率转化效率（PSCS的平均功率转换效率（PSCS）从13.1％增加到16.8％，并且这种制造的PSC产生18.3％的冠军PCE。

著录项

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