Dye Sensitized Solar Cells: TiO2 Sensitization with a Bodipy-Porphyrin Antenna System
Dye Sensitized Solar Cells: TiO2 Sensitization with a Bodipy-Porphyrin Antenna System
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DOI：
10.1021/la9031927
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发表时间：
2010-03-02
期刊：
影响因子：
3.9
通讯作者：
Hupp, Joseph T.
中科院分区：
文献类型：
--
作者：
Lee, Chang Yeon;Hupp, Joseph T.
制备了卟啉锌衍生物(2)和卟啉锌二联体(3)，并将其应用于染料敏化太阳能电池（DSSCs）。在吸收光谱和荧光激发光谱的基础上，dyad3有效地将能量从机体转移到卟啉锌组分。与2-敏化电池（eta = 0.84%）相比，3-敏化太阳能电池具有更高的太阳光谱覆盖率、基于油入射光子到电流效率（IPCE）光谱和更高的功率转换效率（eta = 1.55%）。3敏化细胞的较好性能主要归功于3的主体成分提供的光谱吸收增益。然而，同样明显的是次要效应，反映了(a)填充因子的改善和(b)由于体共轭形成的卟啉红边吸光度的轻微增加。
A zinc porphyrin derivative (2) and zinc porphyrin-bodipy dyad (3) have been prepared and applied to dye-sensitized solar cells (DSSCs). On the basis of absorption and fluorescence excitation spectra, dyad 3 efficiently (transfers energy from the bodipy to zinc porphyrin constituent. The 3-sensitized solar cell demonstrates higher solar spectral coverage, based oil incident photon to Current efficiency (IPCE) spectral and an improved power conversion efficiency (eta = 1.55%) compared to that of the 2-sensitized cell (eta = 0.84%). The better performance of the 3-sensitized cell is attributed largely to the gain in spectral absorbance provided by the bodipy constituent of 3. Also evident, however, are secondary effects reflecting (a) fill-factor improvement and (b) a slight gain in porphyrin red-edge absorbance due to bodipy-conjugate formation.