| Autor: |
Chaopaknam, Jidapa, Wechwithayakhlung, Chayanit, Nakajima, Hideki, Lertvanithphol, Tossaporn, Horprathum, Mati, Sudyoadsuk, Taweesak, Promarak, Vinich, Saeki, Akinori, Pattanasattayavong, Pichaya |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 8/28/2021, Vol. 119 Issue 6, p1-6, 6p |
| Abstrakt: |
We report the application of a coordination polymer semiconductor, tin(II) thiocyanate [Sn(SCN)2], as an ultrathin anode interlayer in organic photovoltaics (OPVs). Sub-10 nm layers of Sn(SCN)2 with high smoothness and excellent transparency having an optical bandgap of 3.9 eV were deposited from an alcohol-based solution at room temperature without post-deposition annealing. Inserting Sn(SCN)2 as an anode interlayer in polymer:fullerene OPVs drastically reduces the recombination loss due to the exciton-blocking energy levels of Sn(SCN)2. At the optimum thickness of 7 nm, an average power conversion efficiency (PCE) of 7.6% and a maximum of 8.1% were obtained. The simple processability using common solvents gives Sn(SCN)2 a distinct advantage over the more well-known copper(I) thiocyanate (CuSCN). The electronic and optical properties of Sn(SCN)2 make it interesting for applications in large-area electronic devices. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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