Journal
ADVANCED ENERGY MATERIALS
Volume 7, Issue 20, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201700492
Keywords
grating; light harvesting; light trapping; moth-eye nanostructures; perovskite solar cells
Categories
Funding
- Ministry of Science and Technology of China [2014CB932600, 2016YFB0401002, 2016YFB0400700]
- National Natural Science Foundation of China [61520106012, 91433116, 61522505, 11474214]
- Jiangsu Science and Technology Department [BK20140053]
- Qing Lan Project, Bureau of Science and Technology of Suzhou Municipality [SYG201525]
- Collaborative Innovation Center of Suzhou Nano Science and Technology
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions
Ask authors/readers for more resources
Light management holds great promise of realizing high-performance perovskite solar cells by improving the sunlight absorption with lower recombination current and thus higher power conversion efficiency (PCE). Here, a convenient and scalable light trapping scheme is demonstrated by incorporating bioinspired moth-eye nanostructures into the metal back electrode via soft imprinting technique to enhance the light harvesting in organic-inorganic lead halide perovskite solar cells. Compared to the flat reference cell with a methylammonium lead halide perovskite (CH3NH3PbI3-xClx) absorber, 14.3% of short-circuit current improvement is achieved for the patterned devices with moth-eye nanostructures, yielding an increased PCE up to 16.31% without sacrificing the open-circuit voltage and fill factor. The experimental and theoretical characterizations verify that the cell performance enhancement is mainly ascribed by the broadband polarization-insensitive light scattering and surface plasmonic effects due to the patterned metal back electrode. It is noteworthy that this light trapping strategy is fully compatible with solution-processed perovskite solar cells and opens up many opportunities toward the future photovoltaic applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available