Modified SnO₂ with Alkali Carbonates as Robust Electron-Transport Layers for Inverted Organic Solar Cells.

ABSTRACT: We report for the first time that alkali carbonates (Li₂CO₃, K₂CO₃, and Rb₂CO₃) based on a low-temperature solution process can be used as interfacial modifiers for SnO₂ as robust electron-transport layers (ETL) for inverted organic solar cells (iOSCs). The room-temperature photoluminescence, the electron-only devices, and the impedance studies altogether suggested the interfacial properties of the alkali carbonates-modified SnO₂ ETLs, which were much better than those based on the SnO₂ only, provided efficient charge transport, and reduced the charge recombination rates for iOSCs. The iOSCs using the polymer donor poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5-b']di

SUBMITTER: Tran VH 

PROVIDER: S-EPMC6643860 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature