Journal
CHEMSUSCHEM
Volume 7, Issue 12, Pages 3252-3256Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402678
Keywords
doping; dyes/pigments; perovskites; silver; solar cells
Funding
- Swedish Research Council
- Swedish Energy Agency
- Knut and Alice Wallenberg Foundation
- National Natural Science Foundation of China [21120102036, 91233201]
- National Basic Research Program of China (973 program) [2014CB239402]
- China Scholarship Council (CSC)
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A silver-based organic salt, silver bis(trifluoromethane-sulfonyl) imide (AgTFSI), was employed as an effective p-type dopant for the triarylamine-based organic hole-transport material Spiro-MeOTAD, which has been successfully applied in solid-state dye-sensitized solar cells (ssDSCs) and perovskite solar cells (PSCs). The power conversion efficiencies (PCEs) of AgTFSI-doped devices improved by 20%, as compared to the device based on the commonly used oxygen doping both for ssDSCs and PSCs. Moreover, the solid-state dye-sensitized devices exposed to AgTFSI as dopant showed considerably better stability than those of oxygen doped, qualifying this p-type dopant as a promising alterative for the preparation of highly efficient as well as stable ssDSCs and PSCs for the future.
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