期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 2, 期 4, 页码 718-725出版社
AMER CHEMICAL SOC
DOI: 10.1021/sc400532g
关键词
Dye-sensitized solar cell; Co-sensitization; Spectral responseD; dye
资金
- Natural Science Foundation of China [21271146, 21271144, 20871096]
- Fundamental Research Funds for the Central Universities of China [2081003]
- Key Lab of Novel Thin Film Solar Cells [KF201111]
Co-sensitization by using two or more dyes with complementary absorption spectra as sensitizers of a semiconductor to expand the spectral response range of dye-sensitized solar cells (DSSCs) is an effective approach to enhance device performance. To improve the light-harvesting capability in the near-infrared (IR) region, zinc phthalocyanine (Zn-tri-PcNc-1) was applied to combine with a D-pi-A triarylamine bithiophene cyanoacrylate-based organic dye (DH-44) for fabrication of a co-sensitized solar cell. The resulting co-sensitized device shows an efficient panchromatic spectral response feature in the range of 320-750 nm and gives an overall conversion efficiency of 6.61%, which is superior to that of the individual dye-sensitized solar cells under standard AM 1.5G one sun irradiation. The above results represent a clear advance toward efficient and low-cost co-sensitized solar cells with a panchromatic spectral response.
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