Efficient Blue‐Colored Solid‐State Dye‐Sensitized Solar Cells: Enhanced Charge Collection by Using an in Situ Photoelectrochemically Generated Conducting Polymer Hole Conductor. Issue 10 (7th March 2016)

• Record Type: Journal Article
• Authors: Zhang, Jinbao; Vlachopoulos, Nick; Hao, Yan; Holcombe, Thomas W.; Boschloo, Gerrit; Johansson, Erik M. J.; Grätzel, Michael; Hagfeldt, Anders
• Is Part Of: Chemphyschem. Volume 17:Issue 10(2016)
• Page Start: 1441
• Page End: 1445
• Publication Date: 2016-03-07
• Subjects: dyes/pigments -- hole-transporting material -- PEDOT -- photochemistry -- polymerization; Chemistry, Physical and theoretical -- Periodicals; 541.05
• DOI: 10.1002/cphc.201600064
• Languages: English
• ISSNs: 1439-4235

Abstract

Abstract: 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 spiro‐OMeTAD‐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 S cm −1 ) compared with that of the widely used low molecular weight HTM spiro‐OMeTAD (3.5×10 −4 S cm −1 ). Abstract : A TAD more efficient : The blue‐colored diketopyrrolopyrrole‐based dye molecule DPP07 was used for the first time in efficient solid‐state dye solar cells (sDSCs). The highest power conversion efficiency (PCE) of 5.5 % was obtained by using a photoelectrochemically polymerized poly(3, 4‐ethylenediothiophene) (PEDOT) hole‐transporting material (HTM). The high PCE for PEDOT‐based sDSCs is mainly attributed to the significantly enhanced charge‐collection efficiency.