Zhang Jinbao, Vlachopoulos Nick, Hao Yan, Holcombe Thomas W, Boschloo Gerrit, Johansson Erik M J, Grätzel Michael, Hagfeldt Anders
Department of Chemistry-Ångström, Centre of Molecular Devices, Uppsala University, 75120, Uppsala, Sweden.
Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne Chemin des Alambics, Station 6, Lausanne, 1015, Switzerland.
Chemphyschem. 2016 May 18;17(10):1441-5. doi: 10.1002/cphc.201600064. Epub 2016 Mar 7.
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) ).
通过有效地将基于二酮吡咯并吡咯的染料与原位形成的导电聚合物聚（3,4-乙撑二氧噻吩）（PEDOT）空穴传输材料（HTM）相结合，实现了5.5%的高功率转换效率（PCE），相比之下，基于小分子螺-OMeTAD的固态染料太阳能电池（sDSC）的PCE为2.9%。基于PEDOT的sDSC的高PCE主要归因于电荷收集效率的显著提高，这是由于与广泛使用的低分子量HTM螺-OMeTAD（3.5×10⁻⁴ S cm⁻¹）相比，空穴电导率提高了三个数量级（0.53 S cm⁻¹）。
