1. Investigation of organic–inorganic hybrid perovskite solar cells based on Al2O3 nanorods.
- Author
-
Ma, Li, Liu, Ping, Wu, Xiaojie, Li, Haitao, Jiang, Yaxiao, Tu, Limin, Chen, Yongsheng, Lu, Jingxiao, and Yang, Shi-e
- Subjects
- *
SOLAR cells , *ELECTRIC properties , *PEROVSKITE , *HYBRID solar cells , *CHARGE transfer kinetics , *NANOSTRUCTURED materials - Abstract
Organic–inorganic hybrid perovskite solar cells have made great breakthroughs in the past few years, and spurred researchers to develop and experiment a variety of new architectures. One-dimensional nanostructures are naturally introduced in solar cells, because of their excellent charge transport properties and open-pore structure. However, the performances of these solar cells are inferior to their mesoporous counterparts, suggesting that some unique mechanisms maybe held behind devices operation. Here, a three-dimensional optical model combined with a two-dimensional axisymmetric semiconductor model is applied to investigate the influence of the architectural design of scaffolds on the properties of perovskite solar cells based on Al 2 O 3 nanorod arrays. Simulation results show a great dependence of device performance on the density, length and porosity of Al 2 O 3 nanorods, which decided the electron field distribution and carrier recombination loss inside the cells. Strikingly, an optimal length of 450 nm for Al 2 O 3 nanorods is obtained for the perovskite solar cells with efficiency over 20% at porosity of 0.7. The results obtained have some guidance function on the fabrication of high efficiency PSCs based on nanorods. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF