Organic Chemistry, Center of Molecular Devices, Department of Chemistry, School of Chemical Science and Engineering, Royal Institute of Technology (KTH), SE-10044 Stockholm, Sweden.
J Am Chem Soc. 2011 Jun 22;133(24):9413-22. doi: 10.1021/ja2030933. Epub 2011 Jun 1.
A series of organic thiolate/disulfide redox couples have been synthesized and have been studied systematically in dye-sensitized solar cells (DSCs) on the basis of an organic dye (TH305). Photophysical, photoelectrochemical, and photovoltaic measurements were performed in order to get insights into the effects of different redox couples on the performance of DSCs. The polymeric, organic poly(3,4-ethylenedioxythiophene) (PEDOT) material has also been introduced as counter electrode in this kind of noniodine-containing DSCs showing a promising conversion efficiency of 6.0% under AM 1.5G, 100 mW·cm(-2) light illumination. Detailed studies using electrochemical impedance spectroscopy and linear-sweep voltammetry reveal that the reduction of disulfide species is more efficient on the PEDOT counter electrode surface than on the commonly used platinized conducting glass electrode. Both pure and solvated ionic-liquid electrolytes based on a thiolate anion have been studied in the DSCs. The pure and solvated ionic-liquid-based electrolytes containing an organic redox couple render efficiencies of 3.4% and 1.2% under 10 mW·cm(-2) light illumination, respectively.
已经合成了一系列有机硫醇/二硫键氧化还原偶联物，并基于有机染料（TH305）在染料敏化太阳能电池（DSC）中对其进行了系统研究。为了深入了解不同氧化还原偶联物对 DSC 性能的影响，进行了光物理、光电化学和光伏测量。在这种不含碘的 DSC 中，还引入了聚合物有机聚（3,4-亚乙基二氧噻吩）（PEDOT）作为对电极，在 AM 1.5G、100 mW·cm（-2）光照射下显示出有前途的 6.0%转换效率。使用电化学阻抗谱和线性扫描伏安法的详细研究表明，在 PEDOT 对电极表面上二硫物种的还原比在常用的镀铂导电玻璃电极上更有效。在 DSC 中研究了基于硫醇阴离子的纯和溶剂化离子液体电解质。在 10 mW·cm（-2）光照射下，纯和溶剂化离子液体基电解质分别具有 3.4%和 1.2%的效率。
