title: AgTFSI as p-type dopant for efficient and stable solid-state dye-sensitized and perovskite solar cells.
abstract: 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.
authors.affiliation: Organic Chemistry, Center of Molecular Devices, Department of Chemistry, School of Chemical Science and Engineering, KTH-Royal Institute of Technology, Stockholm, 100 44 (Sweden).
authors.forename: Bo
authors.initials: B
authors.lastname: Xu
authors.forename: Jing
authors.initials: J
authors.lastname: Huang
authors.forename: Hans
authors.initials: H
authors.lastname: Ågren
authors.forename: Lars
authors.initials: L
authors.lastname: Kloo
authors.forename: Anders
authors.initials: A
authors.lastname: Hagfeldt
authors.forename: Licheng
authors.initials: L
authors.lastname: Sun
mesh_terms: D017610:Calcium Compounds / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D011211:Electric Power Supplies; D010087:Oxides / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013472:Sunlight; D014025:Titanium / Q000737:chemistry*
chemical_list: D017610:Calcium Compounds; D004396:Coloring Agents; D010087:Oxides; C059910:perovskite; D012834:Silver; D014025:Titanium
keywords: doping; dyes/pigments; perovskites; silver; solar cells