Mi Longfei, Zhang Yan, Chen Taotao, Xu Enze, Jiang Yang
Department of Materials Science and Engineering, School of Civil Engineering, Qingdao University of Technology Qingdao Shandong 266000 P. R. China
School of Materials Science and Engineering, Hefei University of Technology Hefei Anhui 230009 P. R. China.
RSC Adv. 2020 Mar 26;10(21):12298-12303. doi: 10.1039/d0ra00288g. eCollection 2020 Mar 24.
Carbon-based inorganic perovskite solar cells (PSCs) have demonstrated an excellent performance in the field of photovoltaics owing to their simple fabrication techniques, low-cost and superior stability. Despite the lower efficiency of devices with a carbon electrode compared with the conventional structure, the potential applications in large scale have attracted increasing attention. Herein, we employ a mixed carbon electrode inorganic PSC by incorporating one-dimensional structure carbon nanotubes (CNTs) and two-dimensional TiC-MXene nanosheets into a commercial carbon paste. This mixed carbon electrode, which is different from the pure carbon electrode in showing a point-to-point contact, provides a network structure and multi-dimensional charge transfer path, which effectively increases the conductivity of the carbon electrode and carriers transport. A respectable power conversion efficiency of 7.09% is obtained through carbon/CNT/MXene mixed electrode in CsPbBr-based solar cells.
碳基无机钙钛矿太阳能电池（PSCs）因其简单的制造工艺、低成本和卓越的稳定性，在光伏领域展现出优异的性能。尽管与传统结构相比，含碳电极器件的效率较低，但其大规模潜在应用已引起越来越多的关注。在此，我们通过将一维结构的碳纳米管（CNTs）和二维TiC-MXene纳米片掺入商用碳糊中，制备了一种混合碳电极无机PSC。这种混合碳电极与纯碳电极不同，呈现点对点接触，提供了一种网络结构和多维电荷转移路径，有效提高了碳电极的导电性和载流子传输。通过在基于CsPbBr的太阳能电池中使用碳/CNT/MXene混合电极，获得了7.09%的可观功率转换效率。
