通过苯并噻二唑和方酸染料的共敏化来提高染料敏化太阳能电池的光伏性能。
Enhanced Photovoltaic Performances of Dye-Sensitized Solar Cells by Co-Sensitization of Benzothiadiazole and Squaraine-Based Dyes.
机构信息
Photovoltaic Materials Unit, National Institute for Materials Science , 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.
Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia (UKM) , Bangi 43600, Selangor Darul Ehsan, Malaysia.
出版信息
ACS Appl Mater Interfaces. 2016 Feb;8(7):4616-23. doi: 10.1021/acsami.5b11134. Epub 2016 Feb 9.
Dye-sensitized solar cells (DSSCs) based on a donor-acceptor-donor oligothienylene dye containing benzothiadiazole (T4BTD-A) were cosensitized with dyes containing cis-configured squaraine rings (HSQ3 and HSQ4). The cosensitized dyes showed incident monochromatic photon-to-current conversion efficiency (IPCE) greater than 70% in the 300-850 nm wavelength region. The individual overall conversion efficiencies of the sensitizers T4BTD-A, HSQ3, and HSQ4 were 6.4%, 4.8%, and 5.8%, respectively. Improved power conversion efficiencies of 7.0% and 7.7% were observed when T4BTD-A was cosensitized with HSQ3 and HSQ4, respectively, thanks to a significant increase in current density (JSC) for the cosensitized DSSCs. Intensity-modulated photovoltage spectroscopy results showed a longer lifetime for cosensitized T4BTD-A+HSQ3 and T4BTD-A+HSQ4 compared to that of HSQ3 and HSQ4, respectively.
基于含有苯并噻二唑（T4BTD-A）的给体-受体-给体齐聚噻吩染料的染料敏化太阳能电池（DSSC）与含有顺式构 Squaraine 环的染料（HSQ3 和 HSQ4）共敏化。共敏化染料在 300-850nm 波长范围内表现出大于 70%的入射单色光子到电流转换效率（IPCE）。敏化剂 T4BTD-A、HSQ3 和 HSQ4 的单体总转化效率分别为 6.4%、4.8%和 5.8%。当 T4BTD-A 与 HSQ3 和 HSQ4 共敏化时，观察到功率转换效率分别提高到 7.0%和 7.7%，这要归功于共敏化 DSSC 中电流密度（JSC）的显著增加。强度调制光电压光谱结果表明，与 HSQ3 和 HSQ4 相比，共敏化的 T4BTD-A+HSQ3 和 T4BTD-A+HSQ4 的寿命更长。
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