Ethynyl-Linked Donor-π-Acceptor Boron Dipyrromethenes for Panchromatic Dye-Sensitized Solar Cells
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摘要Two boron dipyrromethene (BODIPY) derivatives were prepared as functional materials for applications in dye-sensitized solar cells (DSSCs). These compounds consist of a donor-π-acceptor skeleton in which an electron donor and an electron acceptor/anchoring group are introduced to the opposite C2 and C6 positions of a BODIPY core via an ethynyl linker (compounds DN1 and DN2). The molecular structure of one of the key intermediates (compound 8) was determined by x-ray diffraction analysis. Both compounds exhibited panchromatic absorptions in the UV/Vis region. The results of electrochemical studies revealed that the HOMO and LUMO levels of these compounds were suitable for the construction of DSSCs consisting of a TiO2 electrode and an electrolyte based on an I3−/I− redox couple. The optimized structures, frontier molecular orbitals, and absorption spectra of both sensitizers were calculated using density functional theory. A DSSC prepared using the benzothiadiazole-containing analogue DN2 exhibited a photovoltaic conversion efficiency of 3.41 %.
著者W.-J. Shi, T. Kinoshita, D. K. P. Ng
期刊名稱Asian Journal of Organic Chemistry
出版年份2017
月份4
日期5
卷號6
期次6
國際標準期刊號2193-5807
電子國際標準期刊號2193-5815
語言英式英語

上次更新時間 2020-21-09 於 01:56