Jump to main content
Jump to site search

Issue 17, 2017
Previous Article Next Article

On how electron density affects the redox stability of phenothiazine sensitizers on semiconducting surfaces

Author affiliations

Abstract

The stabilities of three organic dyes that differ only by two substituents (–OMe, –H and –Br) about the phenothiazine donor unit were evaluated when immobilized on a semiconductor surface. All three dyes delivered modest power conversion efficiencies (PCEs) in the dye-sensitized solar cell (DSSC), but maintained 75% of their initial PCE over 300 h of sustained simulated sunlight. Electron-donating substituents increased the stability of the phenothiazine radical unit created after light-induced charge injection into the semiconductor; however, this did not translate to higher DSSC stability, which appears to be more sensitive to the basicity of the anchoring group for this series.

Graphical abstract: On how electron density affects the redox stability of phenothiazine sensitizers on semiconducting surfaces

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Dec 2016, accepted on 17 Jan 2017 and first published on 03 Feb 2017


Article type: Communication
DOI: 10.1039/C6CC09992K
Chem. Commun., 2017,53, 2547-2550

  •   Request permissions

    On how electron density affects the redox stability of phenothiazine sensitizers on semiconducting surfaces

    V. A. Chiykowski, B. Lam, C. Du and C. P. Berlinguette, Chem. Commun., 2017, 53, 2547
    DOI: 10.1039/C6CC09992K

Search articles by author

Spotlight

Advertisements