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Study of Low Doping in Organic Devices

Radha Krishnan, Raj Kishen
http://rave.ohiolink.edu/etdc/view?acc_num=kent166315406675448

Abstract Details

2022, PHD, Kent State University, College of Arts and Sciences / Department of Physics.
Transistors are the fundamental building blocks of electronic circuits. Organic transistors have garnered attention due their potential for use in flexible electronics. The materials can be directly processed on flexible substrates at low temperatures making them suitable for applications such as flexible displays and conformal sensors. For practical use in large scale applications organic transistors need to overcome hurdles such as high contact resistance, poor stability and reproducibility. Doping is a key technology that has been implemented to define majority and minority charge carriers, tune the fermi level and produce stable, high performing devices. However, use of doping in organic transistors has been restricted due to low doping efficiency and poor understanding of mechanisms involved. In this work the effect of low doping in organic devices is studied systematically and guidelines are established for effective design/selection of organic materials to achieve effective doping with high efficiency. Ambipolar transistors with high hole and electron current and high ON/OFF ratio are required to implement complementary circuits, which form the backbone of logic applications. DNTT based doped OFETs with excellent hole and electron current are discussed and strategies are discussed to control the spread in transistor parameters like threshold voltage.
Bjorn Lussem (Advisor)
166 p.
Physics
Doping; organic transistors; fullerene; doping efficiency; ambipolar

Recommended Citations

Citations

  • Radha Krishnan, R. K. (2022). Study of Low Doping in Organic Devices [Doctoral dissertation, Kent State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=kent166315406675448

    APA Style (7th edition)

  • Radha Krishnan, Raj Kishen. Study of Low Doping in Organic Devices. 2022. Kent State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=kent166315406675448.

    MLA Style (8th edition)

  • Radha Krishnan, Raj Kishen. "Study of Low Doping in Organic Devices." Doctoral dissertation, Kent State University, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=kent166315406675448

    Chicago Manual of Style (17th edition)

kent166315406675448
58
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This open access ETD is published by Kent State University and OhioLINK.