An Organic Semiconductor Thin Film for Use in Electronic Devices

Summary

Technology Description

 

To overcome challenges with pure xylindein and its derivatives as well as other organic semiconductors, OSU researchers developed a xylindein-containing composite material that can be deposited as a thin film and maintain similar, or in some instances even superior, electrical and optical properties as compared to pure xylindein. The material remained stable under visible light for up to 7 months and is thermally stable in excess of 175°C. The wide range of absorption in films extending to the near-infrared (IR) wavelength region obtained in films is beneficial for devices such as D/A bulk heterojunction (BHJ) solar cells and applications specifically relying on an optical response in the near-IR. The material has also been tested in transistors and memory devices on standard silicon-based substrates.

 

Features & Benefits

  • Sustainable and non-toxic
  • Biocompatible
  • Better performance and stability than alternative organic semiconductors

 

Applications

 

  • Photovoltaic devices
  • Transistors and memory
  • Flexible electronics
  • Wearable electronics

 

Background of Invention

 

Over the past ~5 years, there has been a considerable research effort focusing on sustainable, natural product-derived materials for organic electronics. These include biodegradable and biocompatible substrate materials (e.g. polyester elastomers), polymer dielectric and electrodes, and plant- or animal-derived active layers. These materials are an alternative to rare, expensive, and sometime toxic rare earth elements used in many opto-electronic devices. However, many organic semiconductors remain expensive, and have several performance-based drawbacks, including low optical absorption, degradation when exposed to oxygen and/or UV, and undesirable chemical reactivity, all of which have limited their use in commercial electronic devices.

 

Status

 

Patent pending, seeking development partners.

 

 

 

 

 

 

Patent Information:
Tech ID:
OSU-17-47
Contact:
David Dickson
IP & Licensing Manager
Oregon State University
541-737-3450
david.dickson@oregonstate.edu
Inventors:
Oksana Ostroverkhova
Sara (seri) Robinson
Sarath Vega Guiterrez
Keywords:
biodegradable electronics
Fungal Pigments
Organic electronics
Organic semiconductors
solar cell
sustainable electronics
wearables
Xylindein
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