Ta-Ya Chu

Ta-Ya Chu

Research Officer,National Research Council Canada

Presentation Title:

Development of Printed Organic Thin-Film Transistors and Logic Circuits


Time: TBD

Presentation Abstract:

Ta-Ya Chu*, Zhiyi Zhang, Neil Graddage, Jianping Lu, Stephen Lang, and Ye Tao

Advanced Electronics and Photonics Research Centre, National Research Council Canada

Ottawa, Canada

The development of printed organic thin-film transistors (OTFTs), inverters and logic circuits on flexible substrate have been reported in this work. Thin and uniform dielectric layer was achieved by introducing coffee ring effect during printing process. Charge carrier mobility reached 1 cm2/Vs and 0.1 cm2/Vs on p-type and n-type 3-layer-printed OTFTs on PET substrate with an operation voltage of 15V. All printed OTFTs with a channel length of 3 µm were fabricated by direct printing process. We also succeeded in inkjet printing sub-micrometer Ag lines by using commercial 10 pl nozzle and proper control of the ink-substrate interaction and drying process. Our results demonstrated the full potential of printed transistors for flexible electronics in the near future.


[1] Printing Silver Conductive Inks with High Resolution and High Aspect Ratio, TY Chu, Z Zhang, Y Tao, Adv. Mater. Tech. 3 (5), 1700321 (2018).

[2] Direct writing of inkjet-printed short channel organic thin film transistors, TY Chu, Z Zhang, A Dadvand, C Py, S Lang, Y Tao, Organic Elect. 51, 458-489 (2017).


Dr. Chu has been working as a Research Officer at National Research Council Canada since 2008. He has more than fifteen years experiences in the field of organic electronics, such as OLED, OPV, OTFT and printable electronics. He holds a doctoral degree from the National Chiao-Tung University Taiwan. He has contributed more than forty publications in peer-reviewed journals and conference proceedings which have been cited more than 2300 times, and Ta-Ya is a named inventor on 8 US patents.

Company Profile:

The National Research Council Canada (NRC) is the Government of Canada’s premier organization for research and development.