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New triphenylamine-based sensitizers bearing double anchor units for dye-sensitized solar cells

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Abstract

Two organic sensitizers (LI-33 and LI-34) with double anchoring units were synthesized and utilized for dye sensitized solar cells (DSSCs), which contained thiophene or vinyl thiophene as π-bridge. The introduction of double anchoring units can change their absorption spectra and energy levels in a large degree, thus, the better light-harvesting ability and the convenient electron transfer along the whole molecule can be obtained. The solar cell based on LI-34 exhibited a broad incident photon-to-current conversion efficiency (IPCE) spectrum and high conversion efficiency (η=6.05%) with coadsorbent CDCA.

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Correspondence to Qianqian Li or Zhen Li.

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Shi, J., Chai, Z., Tang, R. et al. New triphenylamine-based sensitizers bearing double anchor units for dye-sensitized solar cells. Sci. China Chem. 58, 1144–1151 (2015). https://doi.org/10.1007/s11426-015-5411-0

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  • DOI: https://doi.org/10.1007/s11426-015-5411-0

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