What is it about?
This article presents a method to deposit one conjugated polymer film on top of another conjugated polymer film without any cross linking chemistry. It details how researchers can use off the shelf polymers to create any multi-layer structure for any device application.
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Why is it important?
Multi-layer deposition is important because multi-layer structures can greatly increase the functionality opto-electronic devices, as shown elegantly by the work of Karl Leo and others working on evaporated small molecule organic electronic devices. Our method, however, focuses on deposition of polymers. Our method is important because we do not require any cross linking chemistry, which is expensive and limiting. Cross-linking groups change the morphology of conjugated semiconductors. So by avoiding the use of cross-link chemistry we avoid the need for expensive chemistry that changes materials properties.
Perspectives
This work is about democratizing organic electronics research. Most highly cited articles focus on synthesis of new materials for new material properties. But synthesis is expensive and so enables richer groups to dominate high impact publications. We instead focus on using existing materials, that can be purchased, in new ways. Our goal is to make solution processing of any material with any other material simple and inexpensive. Look forward to future articles pairing the layering process presented here with lateral nano/micro patterning using lasers. All solution processing without cross-linking is our solution to the organic electronic materials bottleneck.
Professor Adam J. Moule
University of California Davis
Read the Original
This page is a summary of: Reversible Dopant‐Induced Cross‐Linking of Semiconducting Polymer Films for Sequential Multilayer Deposition, Advanced Materials, May 2026, Wiley,
DOI: 10.1002/adma.202520091.
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