Bridging Dimensions in Organic Electronics: Assembly of Electroactive Polymer Nanodevices from Fluids

Abstract

Processing and patterning of electroactive materials from solvents is a hallmark of flexible organic electronics, and commercial applications based on these properties are now emerging. Printing and ink-jetting are today preferred technologies for patterning, but these limit the formation of nanodevices, as they give structures way above the micrometer lateral dimension. There is therefore a great need for cheap, large area patterning of nanodevices and methods for top-down registration of these. Here we demonstrate large area patterning of connected micro/nanolines and nanotransistors from the conducting polymer PEDOT, assembled from fluids. We thereby simultaneously solve problems of large area nanopatterning, and nanoregistration.

Balancing Charge Storage and Mobility in an Oligo(Ether) Functionalized Dioxythiophene Copolymer for Organic‐ and Aqueous‐ Based Electrochemical Devices and Transistors

“…Namely, they are typically much easier to oxidize owing to the disubstitution of π‐donating oxygen atoms, they exhibit high redox stability, as the alkylene bridge can protect the conjugated backbone against nucleophilic attack, and they also tend to have higher redox capacity. In the field of bioelectronics, several other EDOT‐based polyelectrolytes, such as PEDOT‐S, were recently used as OECT active materials and showed exceptional redox stability . When compared to such EDOT‐based polymers, 3,4‐propylenedioxythiophenes (ProDOTs) can be tetrahedrally and regiosymmetrically disubstituted, allowing tunable solubility, synthetic versatility, and minimizing potential effects that would otherwise rise from tacticity.…”

Materials and Transducers Toward Selective Wireless Gas Sensing

“…Several examples of these techniques are presented in Table 4. 167,180,183–190 Representative examples of nanostructured polymeric materials employed for vapor sensing applications are illustrated in Figure 21. 180,184,191 Several recent reviews provide critical analysis of modern techniques for microand nanopatterning of polymeric materials 192 and electrospinning of polymers.…”

Soft Nanolithography by Polymer Fibers

“…Soft lithographies provide low‐cost and high‐throughput patterning approaches to the ongoing miniaturization of devices in electronics,1 photonics,2 biotechnology,3, 4 and microfluidics 5. These technologies rely on masters, realized by conventional lithography,6, 7 or on nanostructures replicated into elastomeric elements 8–10.…”