两亲性钌染料的碳氢链长度对固态染料敏化太阳能电池的影响。

Effect of hydrocarbon chain length of amphiphilic ruthenium dyes on solid-state dye-sensitized photovoltaics.

作者信息

Schmidt-Mende Lukas, Kroeze Jessica E, Durrant James R, Nazeeruddin M K, Grätzel Michael

机构信息

Laboratory for Photonics and Interfaces, Institute of Chemical Science and Engineering, Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland.

出版信息

Nano Lett. 2005 Jul;5(7):1315-20. doi: 10.1021/nl050555y.

DOI:10.1021/nl050555y

PMID:16178230

Abstract

We studied the influence of the hydrophobic hydrocarbon chain length of amphiphilic ruthenium dyes on the device performance in solid-state dye-sensitized solar cells. We found that the dyes with longer hydrocarbon chains gave higher efficiency values when used as a sensitizer in solid-state dye-sensitized solar cells. With increasing chain length, we observed higher currents and open-circuit voltages up to a limiting chain length. We attribute this improvement to the expected larger distance between TiO2 and the hole conductor, which seems to suppress recombination effectively.

摘要

我们研究了两亲性钌染料的疏水烃链长度对固态染料敏化太阳能电池器件性能的影响。我们发现，当在固态染料敏化太阳能电池中用作敏化剂时，具有较长烃链的染料能给出更高的效率值。随着链长增加，我们观察到电流和开路电压不断升高，直至达到一个极限链长。我们将这种改善归因于二氧化钛与空穴导体之间预期更大的距离，这似乎能有效抑制复合。