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Posted on October 1, 2009 by  & 

Exciting developments reported at Printed Electronics Asia

Printed Electronics Asia 2009 opened its doors today to over 200 attendees interested in the developments in printed electronics and photovoltaics in East Asia.
Dr Peter Harrop kicked off the first day of the conference with an overview of the market, focusing his presentation on 3 issues that the industry is facing, which he regards as the most important ones to be solved in order to accelerate adoption of these innovative technologies:
  • Transistors are holding up the party, Dr Harrop said, making it clear that they are needed in nearly all devices. Further presentations during the day also highlighted the great amount of work on the topic worldwide.
  • Lack of innovative design and imaginative new applications leads to reiterative use of new technologies that only find substitutes for existing products rather than create exciting new markets.
  • Dr Harrop also highlighted the importance of designing and launching horizontally marketed basic hardware platforms that will lead to large enough volumes of orders to bring the costs down for the new electronics.
John de Mello from Imperial College London highlighted the work on integration of plastic electronics and microfluidics technologies in order to develop disposable diagnostic testing for patients at the point of care, in order to speed up commencement of treatment and hence, lead to improving its efficacy. The spinoff commercializing this technology is called Molecular vision and is working to bring together lab on a chip and organic semiconductors such as OLEDs and organic photodetectors, the combination of which leads to low cost solutions that can guarantee lab quality results on the spot.
Tina Ng from the Palo Alto Research Centre (PARC) gave an overview of the work undertaken there in the field of printed electronics. Examples included the integration of an organic printed amplifier and an accelerometer, ferroelectric transistors used as 7-day memory cells and inkjet printed complimentary circuits.
Flora Li gave an overview of the low temperature, high-rate deposition of transparent metal oxide transistors, at the University of Cambridge. The industrial partner of the project is Plasma Quest Limited and researchers at Cambridge utilize the company's proprietary High Target Utilization Sputtering (HiTUS) technique.
Next, the work of Prof. Elvira Fortunato was presented by the IDTechEx Technology analyst. This demonstrated the world's first transistor deposited on paper at room temperature that uses the paper as the transistor gate dielectric, with excellent properties and prospects for improvements and the potential to rival state of the art silicon based logic manufactured and annealed at high temperatures.
Further work on thin film transistors included research and development work on transparent InGaZnO transistors at the Tokyo Institute of Technology by Professor Hideo Hosono, and SONY's research work on organic thin film transistors designed to drive flexible electrophoretic displays. SONY's printed OTFT backplane led to the creation of a 4.8'' display with a 169 dpi resolution and 480x640 pixels with efficient ink utilisation limited to less than 0.1ml.
Further work on OTFTs was presented by Dr Maeda of Dai Nippon Printing that developed a TFT for Bridgestone Corporation's flexible electrophoretic display, which was presented immediately after.
Attendees at the conference were very interested in having a closer look at a prototype that was showcased by Mr Masuda, the speaker from Bridgestone, who gave a lot of information on the efforts of the company in developing versions that are both flexible and colour, based on a colour filter approach and potentially capable of video.
The day's sessions ended with a focus on graphene and carbon nanotubes manufacturing, with different approaches covered by NEC, FUJITSU and Vorbeck Materials.
Tomorrows report will conclude with topics ranging from the latest in photovoltaics and barrier materials for flexible electronics to flexible displays, lighting and RFID.

Authored By:

Principal Analyst

Posted on: October 1, 2009

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