Cs2SnI6-Encapsulated Multidye-Sensitized All-Solid-State Solar Cells

• DOI: 10.1021/acsami.8b19778
• Publication Date: 2019-04-24T06:29:47Z
• Authors: Byunghong Lee; Yamuna Ezhumalai; Woongkyu Lee; Ming-Chou Chen; Chen-Yu Yeh; Tobin J. Marks; Robert P. H. Chang
• Keywords: Quasi-solid; Succinonitrile; Chromophore

The design of a dye-sensitized solar cell (DSSC) based on the simultaneous incorporation multiple dyes is examined. By investigating use porphyrin-based YD2-o-C8 and YDD6, organic chromophore TTAR, which can act as complementary absorbers, we are able to enhance capture incoming light across spectrum. This demonstrated first by using conventional DSSC architecture with liquid electrolyte performed power conversion efficiency (PCE) 11.2%, representing an improvement over cells each independent dyes. Next, used Cs2SnI6 encapsulating layer sensitizing molecules reduce charge leakage dye layers also added absorption longer wavelengths up one micron. Finally, fabricated utilizing Cs2SnI6/succinonitrile solid hole-transport achieved PCE ∼8.5%. It expected that all solid-state will go long way toward improving long-term device stability.