Controlled multiple neutral planes by low elastic modulus adhesive for flexible organic photovoltaics

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To protect brittle layers in organic photovoltaic devices, the mechanical neutral plane strategy can be adopted through placing the brittle functional materials close to the neutral plane where stress and strain are zero during bending. However, previous research has been significantly limited in the location and number of materials to protect through using a single neutral plane. In this study, multiple neutral planes are generated using low elastic modulus adhesives and are controlled through quantitative analyses in order to protect the multiple brittle materials at various locations. Moreover, the protection of multiple brittle layers at various locations under both concave and convex bending directions is demonstrated. Multilayer structures that have soft adhesives are further analyzed using the finite element method analysis in order to propose guidelines for structural design when employing multiple neutral planes.
Publisher
IOP PUBLISHING LTD
Issue Date
2017-05
Language
English
Article Type
Article
Keywords

DEVICES; CIRCUITS; ELECTRONICS; TRANSISTORS; DISPLAYS; SYSTEMS; FILMS; OXIDE

Citation

NANOTECHNOLOGY, v.28, no.19

ISSN
0957-4484
DOI
10.1088/1361-6528/aa6a44
URI
http://hdl.handle.net/10203/223836
Appears in Collection
ME-Journal Papers(저널논문)
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