Anchorage of N3 dye-linked polyacrylic acid to TiO2/electrolyte interface for improvement in the performance of a dye-sensitized solar cell |
| |
Authors: | Song-Rim Jang Min-Jung Choi R Vittal Kang-Jin Kim |
| |
Affiliation: | aDepartment of Chemistry, Korea University, Seoul, 136-713, Republic of Korea |
| |
Abstract: | A synthetic route was developed to link N3 dye to polyacrylic acid (PAA) using ethylenediamine (en) as the linker. The resulting complex, PAA–en–N3, was then coated onto a TiO2 film. The modified TiO2 film electrode (hereafter PAA–en–N3/TiO2), when used as the photoanode in a dye-sensitized solar cell (DSSC), exhibited enhanced solar energy conversion efficiency compared with that of the usual DSSC with the N3/TiO2 film electrode. The increase in efficiency was attributed to the increased open-circuit voltage (Voc) and short-circuit photocurrent (Jsc). The increase in Voc was attributed to the formation of a hydrophobic PAA–en–N3 layer on the TiO2/electrolyte interface, while the increase in Jsc was attributed to the additional dye acquired by the TiO2 film from the PAA–en–N3 complex. |
| |
Keywords: | Polyacrylic acid Ethylenediamine linker Dye-sensitized solar cell Hydrophobic layer Back electron transfer |
本文献已被 ScienceDirect 等数据库收录! |
|