Effects of Adhesion and Stretching on Failure Mechanisms and Optical Properties of Organic Solar Cells

Author:

Oyewole O.K.1,Asare J.1,Oyewole D.O.2,Agyei-Tuffour B.1,Anye V.C.1,Zebaze Kana M.G.2,Soboyejo W.O.3

Affiliation:

1. African University of Science and Technology (AUST)

2. Kwara State University

3. African University of Science and Technology (AUST) Abuja

Abstract

This paper presents the results of a study of the adhesion and optical properties of layered structures that are relevant to stretchable organic solar cells. A combination of modeling and experiments is used to investigate the effects of adhesion and stretching on failure mechanisms and optical properties. The adhesion between the possible bi-layers is determined by incorporating force microscopy measurements of pull-off forces into adhesion models. The failure mechanisms associated with the tensile stretching of the structures are then investigated using a combination ofin-situ/ex-situmicroscopy observations and analytical/computational models. The resulting changes in optical properties are elucidated before discussing their implications for the design of stretchable organic solar cells

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference26 articles.

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3. J. Weiss, P. Kukuri, J. Chiguma, J. Gendon, B. Arfaei, P. Borgesen, and W. Jones, Fabrication of low cost flexible solar using solution-based coating techniques, Global Solar Technology (2011) 10-15.

4. G. Dennler, C. Lungenschimied, H. Neugebauer, and N. S. Sariciftci, J. Matter. Res., Vol. 20, No. 12, (2005).

5. F. C. Krebs: Sol. Energy Mater – Solar cells 93 (2009) 1968-(1977).

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