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Citation: WANG Yi, PANG Maoyin, YU Xiaoqiang, WANG Chaolei, MA Tingli. Synthesis and Performance of Organic Photosensitized Dyes Having Double Chain Structure[J]. Chinese Journal of Applied Chemistry, ;2013, 30(6): 617-622. doi: 10.3724/SP.J.1095.2013.20323 shu

Synthesis and Performance of Organic Photosensitized Dyes Having Double Chain Structure

State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China

Received Date: 23 July 2012
Revised Date: 6 September 2012

Two novel organic dyes with double D-π-A branches were designed and synthesized as sensitizers for dye sensitized solar cells(DSSCs). These dyes were characterized by mass spectrometry(MS),proton nuclear magnetic resonance spectrometry(¹H NMR),and carbon nuclear magnetic resonance spectrometry (¹³C NMR). The photophysical and electrochemical properties of these two dyes were studied.Relatively high light to electricity conversion efficiency(η) of 4.10% was achieved using dye DP2 as a sensitizer (open-circuit photovoltage V_oc=0.63 V,short-circuit photocurrent density J_sc=8.59 × 10^-3 A/cm² and fill factor FF=0.76) under 100 × 10^-3 W/cm²(AM 1.5G). An efficiency of 3.38% for DSSCs based on dye DP1 was observed under the same conditions.
- double D-π-A branches,
- organic dyes,
- dye-sensitized solar cell,
- light to electricity conversion efficiency
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