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Investigation of organic–inorganic hybrid perovskite solar cells based on Al2O3 nanorods.
- Source :
-
Solar Energy . Sep2017, Vol. 153, p77-82. 6p. - Publication Year :
- 2017
-
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]
Details
- Language :
- English
- ISSN :
- 0038092X
- Volume :
- 153
- Database :
- Academic Search Index
- Journal :
- Solar Energy
- Publication Type :
- Academic Journal
- Accession number :
- 124939228
- Full Text :
- https://doi.org/10.1016/j.solener.2017.05.062