Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Injection and recombination in dye-sensitized solar cells with a broadband absorbance metal-free sensitizer based on oligothienylvinylene

Caballero, Rubén, Barea, Eva M., Fabregat-Santiago, Francisco, de la Cruz, Pilar, Márquez, Lourdes M., Langa, Fernando and Bisquert, Juan 2008. Injection and recombination in dye-sensitized solar cells with a broadband absorbance metal-free sensitizer based on oligothienylvinylene. Journal of Physical Chemistry C 112 (47) , pp. 18623-18627. 10.1021/jp8061515

Full text not available from this repository.

Abstract

A new metal-free sensitizer for improved light harvesting with dye-sensitized solar cells (DSC) has been synthesized and fully characterized. The molecular sensitizer was engineered by linking the tiophenes groups by methine units, improving light absorption until 760 nm wavelength. In conventional DSC configuration the dye produces short-circuit current density of 13.4 mA/cm2 at 1.5 AM illumination (100 mW cm−2) and the incident photon-to-current conversion efficiency (IPCE) of 58%. The causes for the limitation to the photocurrent are investigated by impedance spectroscopy measurements, and it is shown that metal-based and metal-free molecular sensitizers show distinct characteristics concerning the blocking of the TiO2 surface with coadsorbents to prevent electron recombination.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: Q Science > QD Chemistry
T Technology > T Technology (General)
Publisher: ACS Publications
ISSN: 1932-7447
Last Modified: 21 Oct 2016 03:40
URI: http://orca-mwe.cf.ac.uk/id/eprint/49244

Citation Data

Cited 18 times in Google Scholar. View in Google Scholar

Cited 25 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item