Nanomaterial Modified Perovskite Solar Cells: Black Phosphorus, 2D Perovskite Materials, And Quantum Dots.

Abstract

Perovskite solar cells have gained significant attention due to their high energy conversion efficiency, low cost, and excellent photovoltaic properties. The efficiency and stability of perovskite solar cells can be enhanced by the modification of novel materials which are in the light-absorbing, electron transport, and hole transport layers. Therefore, finding new materials with excellent photovoltaic properties and stable structures is crucial for improving the performances of perovskite solar cells. Black phosphorus, two-dimensional perovskite materials, and quantum dot materials are the research hotspots in recent years, all of which exhibit excellent properties. Using these materials to modify solar cells is an effective way to reinforce the performance of solar cells. This paper introduced these materials briefly. In addition, their applications in the electron transport layer, light-absorbing layer, and hole transport layer of perovskite solar cells were discussed. The impact of utilizing these materials on improving the stability of solar cells were discussed. This work pointed out promising research directions in this field. Exploring novel methods to solve the trap density problem will contribute to further study on this issue. In addition, it is considered that the properties of the hybrid 2D/3D perovskite materials should be explored. Attempting to improve the stability of quantum dot modified solar cells will also be an urgent issue to be addressed in the future.