Dye sensitized solar cells (DSSCs) were co-sensitized with three custom molecularly engineered organic dyes containing butyloxyl chain induced dye (Y1), boron dipyrromethene (bodipy) dye (TP₂A), and squaraine (SQ) ring configured dye (HSQ4). The individual power conversion efficiencies of the DSSCs sensitized with Y1, TP₂A and HSQ4 sensitizers were 3.44%, 4.26% and 5.78%, respectively. Co-sensitized TP₂A + HSQ4 dyes at a 2 : 1 molar ratio showed an efficiency of 7.02%. Further addition of Y1 dye with optimal TP₂A + HSQ4 increased the V_OC from 0.580 V to 0.605 V. The co-sensitized Y1 + TP₂A + HSQ4 based DSSCs showed a new optimal efficiency (η) of 7.48%. This is the highest efficiency recorded for DSSCs based on co-sensitization of triple organic dyes. Intensity modulated photovoltage spectroscopy further confirms the longer lifetime of co-sensitized Y1 + TP₂A + HSQ4 compared to that of each individual TP₂A and HSQ4 and co-sensitized TP₂A + HSQ4 dye.

中文翻译：

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通过三有机染料的共敏化染料敏化太阳能电池的全色吸收

染料敏化太阳能电池（DSSC）与三种定制的分子工程有机染料共敏化，这些有机染料包含丁氧基链诱导染料（Y1），硼二吡咯亚甲基（bodipy）染料（TP ₂ A）和方酸（SQ）环构型染料（HSQ4） 。用Y1，TP ₂ A和HSQ4敏化剂敏化的DSSC的单个功率转换效率分别为3.44％，4.26％和5.78％。摩尔比为2：1的共增感TP ₂ A + HSQ4染料的效率为7.02％。进一步添加具有最佳TP ₂ A + HSQ4的Y1染料可使V _OC从0.580 V增加到0.605V。基于Y1 + TP ₂ A + HSQ4的共敏化DSSC显示出新的最佳效率（η）的7.48％。基于三重有机染料的共敏化，这是DSSC记录的最高效率。与每个单独的TP ₂ A和HSQ4以及共增感的TP ₂ A + HSQ4染料相比，强度调制的光电压光谱进一步证实了共同增感的Y1 + TP ₂ A + HSQ4的寿命更长。