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An Indium Tin Oxide-Free Polymer Solar Cell on Flexible Glass

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Formica, Nadia
Mantilla-Perez, Paola
Ghosh, Dhriti S.
Janner, David
Chen, Tong Lai
Huang, Minghuang
Garner, Sean
Martorell, Jordi
Pruneri, Valerio
Document typeArticle
Defense date2015-02-05
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
: Future optoelectronic devices and their low-cost roll-to-roll production require mechanically flexible transparent electrodes (TEs) and substrate materials. Indium tin oxide (ITO) is the most widely used TE because of its high optical transmission and low electrical sheet resistance. However, ITO, besides being expensive, has very poor performance under mechanical stress because of its fragile oxide nature. Alternative TE materials have thus been sought. Here we report the development of a multilayer TiO2/Ag/Al-doped ZnO TE structure and an ITO-free polymer solar cell (PSC) incorporating it. Electro-optical performances close to those of ITO can be achieved for the proposed TE and corresponding PSC with an additional advantage in their mechanical flexibility, as demonstrated by the fact that the cell efficiency maintains 94% of its initial value (6.6%) after 400 cycles of bending, with 6 and 3 cm maximum and minimum radii, respectively. Instead of common plastic materials, our work uses a very thin (0.14 mm) flexible glass substrate with several benefits, such as the possibility of high-temperature processes, superior a
CitationFormica, Nadia [et al.]. An Indium Tin Oxide-Free Polymer Solar Cell on Flexible Glass. "ACS Applied Materials and Interfaces", 5 Febrer 2015, vol. 7, núm. 8, p. 4541-4548. 
URIhttp://hdl.handle.net/2117/27073
ISSN1944-8244
Publisher versionhttp://pubs.acs.org/doi/abs/10.1021/am5071909
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