Performance enhancement of perovskite solar cells via Nb/Ta-doped TiO2 mesoporous layers

  • Meng Li
  • Yulong ZhaoEmail author
  • Lei Zhu
  • Jian SongEmail author
  • Yinghuai Qiang


The power conversion efficiency of mesoporous perovskite solar cells (PSCs) is closely related with TiO2 mesoporous layer. As the most universal mesoporous layer material, however, TiO2 does weakly in electrical properties. As a result, structure modifications of TiO2 mesoporous layer are required. In this work, niobium/tantalum doped TiO2 mesoporous layer were prepared via a facile one-pot solution process, and applied successfully as high quality mesoporous layer for mesoporous PSCs. Performance of perovskite solar cells prepared with Nb/Ta-doped TiO2 mesoporous layer enhanced apparently compared with the control device, especially in the short circuit current density (Jsc) which was improved from 18.4 to 21.3 mA cm−2.



We appreciate the financial supports from Natural Science Foundation of Jiangsu Province (BK20160262), the Fundamental Research Funds for the Central Universities (2018QNA06), and Promoting Scientific and Technological Innovation Foundation of Xuzhou (KC18067).


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Authors and Affiliations

  1. 1.School of Materials Science and EngineeringChina University of Mining and TechnologyXuzhouChina
  2. 2.The Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and EquipmentsChina University of Mining and TechnologyXuzhouChina
  3. 3.The Xuzhou City Key Laboratory of High Efficient Energy Storage Technology and EquipmentsChina University of Mining and TechnologyXuzhouChina

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