Novel thiophene derivative hybrid composite solar cells

Swathi, SK and Ranjith, K and Kumar, Prajwal and Ramamurthy, Praveen C (2012) Novel thiophene derivative hybrid composite solar cells. In: Solar Energy Materials and Solar Cells, 96 (1). pp. 101-107.

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Abstract

In this work composites of poly(3-hexylethiophene) (P3HT) and a thiophene derivative (7, 9-di (thiophen-2-yl)-8H-cyclopenta[a]acenaphthylen-8-one) (DTCPA) having donor acceptor architecture (DAD) were prepared. Photovoltaic properties of these hybrid composites were evaluated. DTCPA, which is a highly crystalline organic molecule with wide absorption range, was observed to improve the open circuit voltage of the solar cell. Furthermore, DTCPA crystals acts as a nucleating center and increases the molecular ordering of P3HT in the composite. Improved charge separation efficiency was observed by photoluminescence spectroscopy. Because of high built in potential in these devices, large open circuit voltage was observed. (C) 2011 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Publication:	Solar Energy Materials and Solar Cells
Publisher:	Elsevier Science B.V.
Additional Information:	Copyright of this article belongs to Elsevier Science B.V.
Keywords:	Organic solar cells;Thiophene derivative blend;High V(oc)
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	27 Jan 2012 06:25
Last Modified:	27 Jan 2012 06:25
URI:	http://eprints.iisc.ac.in/id/eprint/43135

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