Issue 8, 2005
From the journal:

New Journal of Chemistry

Molecular photosensors of self-assembled monolayers: electron acceptor–photosensitizer dyad on an ITO surface

Kyung-Hee Hyung,†a   Dong-Young Kimb  and  Sung-Hwan Han*a  

* Corresponding authors

a Department of Chemistry, Hanyang University, Haengdang-dong 17, Sungdong-ku, Seoul, Korea
E-mail: shhan@hanyang.ac.kr
Fax: +822-2299-0762
Tel: +822-2290-0934

b Opto-Electronic Materials Research Center, Korea Institute of Science and Technology, 39-1, Hawolgok-dong, Seongbuk-gu, Seoul, Korea

Abstract

Self-assembled monolayers of di-(3-diaminopropyl)-viologen (DAPV) were prepared on a tin-doped indium oxide (ITO) surface as acceptor layers. Photoactive layers of Ru(2,2′-bipyridine-4,4′-dicarboxylic acid)2(NCS)2 were formed on DAPV to give an acceptor–sensitizer dyad on ITO. The photon energy was monitored by measuring the ITO conductivity change. Under illumination, the ITO conductivity increased with the current increasing by increments of 8 nA indicating the construction of molecular photosensors on the ITO surface. The concept of a molecular photosensor was further applied to a molecular photovoltaic system. The presence of the viologen moiety bridges the energy levels between the LUMO of the Ru sensitizer and ITO, and improves the efficiency of a photovoltaic cell with a quantum yield of 18.4% at 3.3 mW cm−2.

Graphical abstract: Molecular photosensors of self-assembled monolayers: electron acceptor–photosensitizer dyad on an ITO surface

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B502353J
Article type
Paper
Submitted
15 Feb 2005
Accepted
26 May 2005
First published
05 Jul 2005

New J. Chem., 2005,29, 1022-1026

Permissions

Request permissions

Molecular photosensors of self-assembled monolayers: electron acceptor–photosensitizer dyad on an ITO surface

K. Hyung, D. Kim and S. Han, New J. Chem., 2005, 29, 1022 DOI: 10.1039/B502353J

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