journal article·2015-10-01Open access

Decoupling optical and electronic optimization of organic solar cells using high-performance temperature-stable TiO2/Ag/TiO2 electrodes

Kwang-Dae Kim, Thomas Pfadler, Eugen Zimmermann, Yuyi Feng, James A. Dorman, Jonas Weickert, Lukas Schmidt-Mende

APL Materials· Volume 3· Issue 10

Abstract

An electrode structured with a TiO2/Ag/TiO2 (TAT) multilayer as indium tin oxide (ITO) replacement with a superior thermal stability has been successfully fabricated. This electrode allows to directly tune the optical cavity mode towards maximized photocurrent generation by varying the thickness of the layers in the sandwich structure. This enables tailored optimization of the transparent electrode for different organic thin film photovoltaics without alteration of their electro-optical properties. Organic photovoltaic featuring our TAT multilayer shows an improvement of ∼12% over the ITO reference and allows power conversion efficiencies (PCEs) up to 8.7% in PTB7:PC71BM devices.
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Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Perovskite Materials and Applications · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

University of Konstanz 1 Department of Physics, , P.O. Box 680, 78467 Constance, Germany

Louisiana State University 2 , Chemical Engineering Building, Baton Rouge, Louisiana 70803, USA

Funding

National Research Foundation of Korea · Baden-Württemberg Stiftung · Carl-Zeiss-Stiftung · Alexander von Humboldt-Stiftung

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