Issue 9, 2012

A simple triaryl amine-based dual functioned co-adsorbent for highly efficient dye-sensitized solar cells

Abstract

We have developed 4-(bis(9,9-dimethyl-9H-flouren-2-yl)amino)benzoic acid (HC-Acid) to use as an alternative co-adsorbent to deoxycholic acid (DCA) in organic dye-sensitized solar cells (DSSCs). It has dual functioned effects, that is, the prevention effect of the π–π stacking of organic dye molecules like DCA and the light harvesting effect at shorter-wavelength regions. When the HC-Acid was used as the co-adsorbent onto the TiO2 surface with the organic dye NKX2677 sensitized solar cell, an extremely high conversion efficiency of 9.09% was achieved under 100 mW cm−2 AM 1.5G simulated light (Jsc = 18.01 mA cm−2, Voc = 0.663 V, and FF = 76.16). As we herein demonstrate, an increase in short-circuit photocurrent density (Jsc) of 20%, open-circuit photovoltage (Voc) of 11% and overall conversion efficiency (η) of 38% occurred in comparison to the NKX2677 based solar cell. As a consequence, this new class of a low molecular weight organic co-adsorbent (HC-Acid) is a promising candidate as an alternative co-adsorbent with a new function not seen in DCA or CA derivatives for highly efficient dye-sensitized solar cells.

Graphical abstract: A simple triaryl amine-based dual functioned co-adsorbent for highly efficient dye-sensitized solar cells

Supplementary files

Article information

Article type
Paper
Submitted
20 Nov 2011
Accepted
14 Dec 2011
First published
20 Jan 2012

J. Mater. Chem., 2012,22, 3786-3794

A simple triaryl amine-based dual functioned co-adsorbent for highly efficient dye-sensitized solar cells

H. M. Song, K. D. Seo, M. S. Kang, I. T. Choi, S. K. Kim, Y. K. Eom, J. H. Ryu, M. J. Ju and H. K. Kim, J. Mater. Chem., 2012, 22, 3786 DOI: 10.1039/C2JM16021H

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.

Spotlight

Advertisements