Journal
SOLAR RRL
Volume 3, Issue 8, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.201900075
Keywords
AgBiS2 nanocrystals; charge decay; charge mobility; diffusion length; microwave conductivity
Funding
- School of Engineering and the Energy and Environmental Theme at Cardiff University
- Fundacion Iberdrola Espana
- European Research Council (ERC) under Horizon 2020 ERC Grant [648433]
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Solution-processed AgBiS2 nanocrystal films are a promising material for nontoxic, earth-abundant solar cells. While solar cells with good device efficiency are demonstrated, so far, hardly anything is known about charge generation, transport, and recombination processes in these films. Here, a photoinduced time-resolved microwave conductivity study on AgBiS2 nanocrystal films is presented. By modeling the experimental data with density-dependent recombination processes, the product of the temperature-dependent electron and hole quantum yield and mobility, and the electron and hole recombination kinetics are determined.
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