New Conductive Polymer Ink

Researchers at Linköping College, Sweden, have developed a steady high-conductivity polymer ink. The brand new n-type materials comes within the type of ink with ethanol because the solvent. Credit score: Thor Balkhed

A Excessive-Conductivity N-Kind Polymeric Ink for Printed Electronics

Researchers at Linköping College, Sweden, have developed a steady high-conductivity polymer ink. The advance paves the way in which for revolutionary printed electronics with excessive vitality effectivity. The outcomes have been revealed in Nature Communications.

Electrically conducting polymers have made doable the event of versatile and light-weight digital elements reminiscent of natural biosensors, photo voltaic cells, light-emitting diodes, transistors, and batteries.

{The electrical} properties of the conducting polymers might be tuned utilizing a technique often called “doping”. On this technique, numerous dopant molecules are added to the polymer to vary its properties. Relying on the dopant, the doped polymer can conduct electrical energy by the movement of both negatively charged electrons (an “n-type” conductor), or positively charged holes (a “p-type” conductor). At the moment, probably the most generally used conducting polymer is the p-type conductor PEDOT:PSS. PEDOT:PSS has a number of compelling options reminiscent of excessive electrical conductivity, wonderful ambient stability, and most significantly, industrial availability as an aqueous dispersion. Nonetheless, many digital gadgets require a mix of p-types and n-types to operate. For the time being, there isn’t a n-type equal to PEDOT:PSS.

Conductive Polymer Ink

Researchers at Linköping College, Sweden, have developed a steady high-conductivity polymer ink. The ink might be deposited by merely spraying the answer onto a floor, making natural digital gadgets simpler and cheaper to fabricate. Credit score: Thor Balkhed

Researchers at Linköping College, along with colleagues within the US and South Korea, have now developed a conductive n-type polymer ink, steady in air and at excessive temperatures. This new polymer formulation is called BBL:PEI.

“This can be a main advance that makes the subsequent technology of printed digital gadgets doable. The shortage of an acceptable n-type polymer has been like strolling on one leg when designing useful digital gadgets. We will now present the second leg”, says Simone Fabiano, senior lecturer within the Division of Science and Know-how at Linköping College.

Chi-Yuan Yang is a postdoc at Linköping College and one of many principal authors of the article revealed in Nature Communications. He provides:

“Every thing doable with PEDOT:PSS can be doable with our new polymer. The mix of PEDOT:PSS and BBL:PEI opens new potentialities for the event of steady and environment friendly digital circuits”, says Chi-Yuan Yang.

The brand new n-type materials comes within the type of ink with ethanol because the solvent. The ink might be deposited by merely spraying the answer onto a floor, making natural digital gadgets simpler and cheaper to fabricate. Additionally, the ink is extra eco-friendly than many different n-type natural conductors at the moment below growth, which as a substitute include dangerous solvents. Simone Fabiano believes that the know-how is prepared for routine use.

“Massive-scale manufacturing is already possible, and we’re thrilled to have come to date in a comparatively quick time. We count on BBL:PEI to have the identical influence as PEDOT:PSS. On the identical time, a lot stays to be finished to adapt the ink to numerous applied sciences, and we have to be taught extra in regards to the materials”, says Simone Fabiano.

Reference: “A high-conductivity n-type polymeric ink for printed electronics” by Chi-Yuan Yang, Marc-Antoine Stoeckel, Tero-Petri Ruoko, Han-Yan Wu, Xianjie Liu, Nagesh B. Kolhe, Ziang Wu, Yuttapoom Puttisong, Chiara Musumeci, Matteo Massetti, Hengda Solar, Kai Xu, Deyu Tu, Weimin M. Chen, Han Younger Woo, Mats Fahlman, Samson A. Jenekhe, Magnus Berggren and Simone Fabiano, 21 April 2021, Nature Communications.
DOI: 10.1038/s41467-021-22528-y

The analysis was financed by the Knut and Alice Wallenberg Basis, the Swedish Analysis Council, the Åforsk Basis, the Olle Engkvist Basis, Vinnova, and the strategic analysis space Superior Useful Supplies at Linköping College.

Footnotes:

  • PEDOT:PSS is an abbreviation for poly(3,4-ethylenedioxythiophene):polystyrene sulfonate.
  • BBL:PEI is an abbreviation for poly(benzimidazobenzophenanthroline):poly(ethyleneimine).

By Rana

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