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The Sensitization of Nanoporous TiO2 Electrodes by Porphyrin Derivatives with Different Substituents

Published online by Cambridge University Press:  03 September 2012

Kai Pan ,
Zhaoyue Liu ,
Jinjie Xü ,
Miao Yu ,
Dejun Wang ,
Yubai Bai  and
Tiejin Li
Kai Pan
Affiliation:
College of Chemistry, Jilin University, Changchun 130023, P. R. China, Tel: +86-431-849-9192; Fax: +86-431-894-9334. E-mail: [email protected].
Zhaoyue Liu
Affiliation:
College of Chemistry, Jilin University, Changchun 130023, P. R. China, Tel: +86-431-849-9192; Fax: +86-431-894-9334. E-mail: [email protected].
Jinjie Xü
Affiliation:
College of Chemistry, Jilin University, Changchun 130023, P. R. China, Tel: +86-431-849-9192; Fax: +86-431-894-9334. E-mail: [email protected].
Miao Yu
Affiliation:
College of Chemistry, Jilin University, Changchun 130023, P. R. China, Tel: +86-431-849-9192; Fax: +86-431-894-9334. E-mail: [email protected].
Dejun Wang
Affiliation:
College of Chemistry, Jilin University, Changchun 130023, P. R. China, Tel: +86-431-849-9192; Fax: +86-431-894-9334. E-mail: [email protected].
Yubai Bai
Affiliation:
College of Chemistry, Jilin University, Changchun 130023, P. R. China, Tel: +86-431-849-9192; Fax: +86-431-894-9334. E-mail: [email protected].
Tiejin Li
Affiliation:
College of Chemistry, Jilin University, Changchun 130023, P. R. China, Tel: +86-431-849-9192; Fax: +86-431-894-9334. E-mail: [email protected].
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Abstract

Nanoporous TiO2 electrodes were sensitized by different porphyrin derivatives, terahydroxyphenyl porphyrin (THPP) and tera-carboxylphenyl porphyrin (TCPP). Both kinds of sensitized electrodes were characterized by UV-vis, XRD and XPS. The results showed that the interaction between TiO2 and TCPP was stronger than that between TiO2 and THPP. Both kinds of the sensitized electrodes were assembled to photoelectrochemical cells. The photocurrent responses of the photoelectrochemical cell under different incident illumination directions were different significantly. The overall light-to-electric energy conversion yield (η) of TCPPsensitized cell was 0.11%, while the conversion efficiency of THPP-sensitized cell was 0.06%.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 822: Symposium S – Nanostructured Materials in Alternative Energy Devices , 2004 , S3.13
Copyright
Copyright © Materials Research Society 2004

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