DataVXAdvanced Energy MaterialsPaper
journal article·2020-09Open access

Microfluidic‐Assisted Blade Coating of Compositional Libraries for Combinatorial Applications: The Case of Organic Photovoltaics

Xabier Rodríguez‐Martínez, Semih Sevim, Xiaofeng Xu, Carlos Franco, Paula Pamies‐Puig, Laura Córcoles‐Guija, Romen Rodriguez‐Trujillo, Francisco Javier del Campo, David Rodriguez San Miguel, Andrew J. deMello, Salvador Pané, David B. Amabilino, Olle Inganäs, Josep Puigmartí‐Luis, Mariano Campoy‐Quiles

Advanced Energy Materials· Volume 10· Issue 33
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Abstract

Abstract Microfluidic technologies are highly adept at generating controllable compositional gradients in fluids, a feature that has accelerated the understanding of the importance of chemical gradients in biological processes. That said, the development of versatile methods to generate controllable compositional gradients in the solid‐state has been far more elusive. The ability to produce such gradients would provide access to extensive compositional libraries, thus enabling the high‐throughput exploration of the parametric landscape of functional solids and devices in a resource‐, time‐, and cost‐efficient manner. Herein, the synergic integration of microfluidic technologies is reported with blade coating to enable the controlled formation of compositional lateral gradients in solution. Subsequently, the transformation of liquid‐based compositional gradients into solid‐state thin films using this method is demonstrated. To demonstrate efficacy of the approach, microfluidic‐assisted blade coating is used to optimize blending ratios in organic solar cells. Importantly, this novel technology can be easily extended to other solution processable systems that require the formation of solid‐state compositional lateral gradients.
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Research context

Electronic materials

OpenAlex topics: Organic Electronics and Photovoltaics · Lipid Membrane Structure and Behavior · Block Copolymer Self-Assembly

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

Affiliations

Instituto de Ciencia de Materiales de Barcelona ICMAB (CSIC) Esfera UAB Campus Universidad Autónoma de Barcelona Bellaterra Barcelona 08193 Spain

Institute of Chemical and Bioengineering ETH Zurich Vladimir Prelog Weg 1 Zurich 8093 Switzerland

Biomolecular and Organic Electronics Department of Physics Chemistry and Biology (IFM) Linköping University Linköping SE‐581 83 Sweden

Department of Materials Science and Engineering Ocean University of China Songling Road 238 Qingdao 266100 China

Department of Electronics and Biomedical Engineering University of Barcelona C/Martí i Franquès 1 Barcelona 08028 Spain

Instituto de Microelectrónica de Barcelona IMB‐CNM (CSIC) Esfera UAB Campus Universidad Autónoma de Barcelona Bellaterra Barcelona 08193 Spain

BCMaterials Basque Center for Materials Applications and Nanostructures UPV/EHU Science Park Leioa 48940 Spain

IKERBASQUE Basque Foundation for Science Bilbao 48011 Spain

Institute of Robotics and Intelligent Systems ETH Zurich Tannenstrasse 3 Zurich 8092 Switzerland

School of Chemistry University of Nottingham Nottingham NG7 2RD UK

Funding

European Research Council · Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung · Generalitat de Catalunya · European Commission · University of Tasmania · H2020 Marie Skłodowska-Curie Actions

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