Issue 33, 2019

Improvement of dye-sensitized solar cell performances through introducing europium dye with multiple excitation: dual enhancement in light absorption

Abstract

Two Eu dyes, EuC28H19O9 and Eu2C28H23NO15 (named as Eu1 and Eu2) with multiple excitation, were used to co-sensitize a TiO2 photoanode with N719. Eu1 and Eu2 filled the absorption blank of N719 in the ultraviolet region and enhanced the absorption intensity of N719 in the visible region by multiple excitation. The performances of the dye-sensitized solar cell were improved by this dual enhancement in light absorption. The optical property, charge-transfer property, and electrochemical and photovoltaic properties of Eu1 and Eu2 were investigated by UV-visible spectroscopy, transient surface photovoltage measurement, cyclic voltammetry, and photocurrent–photovoltage measurement. The combination of Eu dye and N719 in DSSCs increased electron excitation, broadened the absorption spectrum and decreased charge recombination. The co-sensitized device showed an enhanced photocurrent (17.37 mA cm−2) and conversion efficiency (8.3%).

Graphical abstract: Improvement of dye-sensitized solar cell performances through introducing europium dye with multiple excitation: dual enhancement in light absorption

Supplementary files

Article information

Article type
Paper
Submitted
08 Jun 2019
Accepted
26 Jul 2019
First published
06 Aug 2019

New J. Chem., 2019,43, 13249-13255

Improvement of dye-sensitized solar cell performances through introducing europium dye with multiple excitation: dual enhancement in light absorption

L. Zhang, X. Wang and X. Sun, New J. Chem., 2019, 43, 13249 DOI: 10.1039/C9NJ02985K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements