Efficient Blue-Colored Solid-State Dye-Sensitized Solar Cells: Enhanced Charge Collection by Using an in Situ Photoelectrochemically Generated Conducting Polymer Hole Conductor

A high power conversion efficiency (PCE) of 5.5% was achieved by efficiently incorporating a diketopyrrolopyrrole-based dye with a conducting polymer poly(3,4-ethylenediothiophene) (PEDOT) hole-transporting material (HTM) that was formed in situ, compared with a PCE of 2.9% for small molecular spiroOMeTAD-based solid-state dye solar cells (sDSCs). The high PCE for PEDOT-based sDSCs is mainly attributed to the significantly enhanced charge-collection efficiency, as a result of the three-order-of-magnitude higher hole conductivity (0.53 Scm(-1)) compared with that of the widely used low molecular weight HTM spiro-OMeTAD (3.5 x 10(-4) Scm(-1)).


Published in:
Chemphyschem, 17, 10, 1441-1445
Year:
2016
Publisher:
Weinheim, Wiley-V C H Verlag Gmbh
ISSN:
1439-4235
Keywords:
Laboratories:




 Record created 2016-10-18, last modified 2018-01-28


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