Casali Center for Applied Chemistry, Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel.
Casali Center for Applied Chemistry, Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
Proc Natl Acad Sci U S A. 2020 Dec 8;117(49):31010-31017. doi: 10.1073/pnas.2013242117. Epub 2020 Nov 23.
Perovskite solar cells have developed into a promising branch of renewable energy. A combination of feasible manufacturing and renewable modules can offer an attractive advancement to this field. Herein, a screen-printed three-layered all-nanoparticle network was developed as a rigid framework for a perovskite active layer. This matrix enables perovskite to percolate and form a complementary photoactive network. Two porous conductive oxide layers, separated by a porous insulator, serve as a chemically stable substrate for the cells. Cells prepared using this scaffold structure demonstrated a power conversion efficiency of 11.08% with a high open-circuit voltage of 0.988 V. Being fully oxidized, the scaffold demonstrated a striking thermal and chemical stability, allowing for the removal of the perovskite while keeping the substrate intact. The application of a new perovskite in lieu of a degraded one exhibited a full regeneration of all photovoltaic performances. Exclusive recycling of the photoactive materials from solar cells paves a path for more sustainable green energy production in the future.
钙钛矿太阳能电池已经发展成为可再生能源的一个有前途的分支。可行的制造和可再生模块的结合可以为该领域提供有吸引力的进展。在此，开发了一种丝网印刷的三层全纳米颗粒网络作为钙钛矿活性层的刚性框架。该基质使钙钛矿能够渗透并形成互补的光活性网络。两个多孔导电氧化物层由多孔绝缘体隔开，作为电池的化学稳定基底。使用这种支架结构制备的电池表现出 11.08%的功率转换效率和 0.988 V 的高开路电压。支架完全被氧化，表现出惊人的热稳定性和化学稳定性，允许在保持基底完整的情况下去除钙钛矿。用新的钙钛矿代替降解的钙钛矿应用显示出所有光伏性能的完全再生。从太阳能电池中独家回收光活性材料为未来更可持续的绿色能源生产铺平了道路。
