Ni Jen-Shyang, You Jian-Hao, Hung Wei-I, Kao Wei-Siang, Chou Hsien-Hsin, Lin Jiann T
Institute of Chemistry, Academia Sinica , Nankang, Taipei 115, Taiwan.
ACS Appl Mater Interfaces. 2014 Dec 24;6(24):22612-21. doi: 10.1021/am5067145. Epub 2014 Dec 12.
New D-π-A'-π-A type sensitizers (JH dyes), comprised arylamine as the electron donor, dithieno[3',2':3,4;2″,3″:5,6]benzo[1,2-c]furazan (DTBF) in the conjugated spacer, and 2-cyanoacrylic acid as both the acceptor and anchor, have been synthesized. The JH dyes have broad absorption spectra covering the range of 350 to 600 nm with the highest molar extinction coefficient up to >40 000 M(-1) cm(-1). The dye-sensitized solar cells (DSSCs) fabricated from the dyes exhibited light-to-electricity conversions ranging from 1.42 to 6.18% under simulated AM 1.5 G illumination. Upon adding 10 mM CDCA as the coadsorbent, the best performance cell has the power conversion efficiency of 7.33%, which is close to that of N719-based standard DSSC (7.56%).
新型D-π-A'-π-A型敏化剂（JH染料）已被合成，其由芳胺作为电子供体、共轭间隔基中的二噻吩并[3',2':3,4;2″,3″:5,6]苯并[1,2-c]呋咱（DTBF）以及作为受体和锚定基团的2-氰基丙烯酸组成。JH染料具有覆盖350至600 nm范围的宽吸收光谱，最高摩尔消光系数高达>40 000 M(-1) cm(-1)。由这些染料制备的染料敏化太阳能电池（DSSC）在模拟AM 1.5 G光照下表现出1.42%至6.18%的光电转换效率。加入10 mM CDCA作为共吸附剂后，性能最佳的电池的功率转换效率为7.33%，接近基于N719的标准DSSC的效率（7.56%）。
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