An efficient solution-processed intermediate layer for facilitating fabrication of organic multi-junction solar cells

Li N, Baran D, Forberich K, Turbiez M, Ameri T, Krebs FC, Brabec C (2013)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2013

Journal

Book Volume: 3

Pages Range: 1597-1605

Journal Issue: 12

DOI: 10.1002/aenm.201300372

Abstract

Photovoltaic tandem technology has the potential to boost the power conversion efficiency of organic photovoltaic devices. Here, a reliable and efficient fully solution-processed intermediate layer (IML) consisting of ZnO and neutralized poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is demonstrated for series-connected multi-junction organic solar cells (OSCs). Drying at 80°C in air is sufficient for this solution-processed IML to obtain excellent functionality and reliability, which allow the use of most of high performance donor materials in the tandem structure. An open circuit voltage (V) of 0.56 V is obtained for single-junction OSCs based on a low band-gap polymer, while multi-junction OSCs based on the same absorber material deliver promising fill factor values along with fully additive V as the number of junctions increase. Optical and electrical simulations, which are reliable and promising guidelines for the design and investigation of multi-junction OSCs, are discussed. The outcome of optical and electrical simulations is in excellent agreement with the experimental data, indicating the outstanding efficiency and functionality of this solution-processed IML. The demonstration of this efficient, solution-processed IML represents a convenient way for facilitating fabrication of multi-junction OSCs to achieve high power conversion efficiency. An efficient solution-processed intermediate layer is introduced for facilitating fabrication of multi-junction organic solar cells (OSCs). The multi-junction OSCs that incorporate this intermediate layer deliver promising fill factor values along with the fully additive open circuit voltage (V) as the number of junctions increase. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Authors with CRIS profile

Involved external institutions

BASF Schweiz AG Switzerland (CH) Technical University of Denmark / Danmarks Tekniske Universitet (DTU) Denmark (DK)

How to cite

APA:

Li, N., Baran, D., Forberich, K., Turbiez, M., Ameri, T., Krebs, F.C., & Brabec, C. (2013). An efficient solution-processed intermediate layer for facilitating fabrication of organic multi-junction solar cells. Advanced Energy Materials, 3(12), 1597-1605. https://doi.org/10.1002/aenm.201300372

MLA:

Li, Ning, et al. "An efficient solution-processed intermediate layer for facilitating fabrication of organic multi-junction solar cells." Advanced Energy Materials 3.12 (2013): 1597-1605.

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