Abstract
We report on organic light-emitting (field-effect) transistors (LETs) fabricated on a flexible and transparent plastic foil (Mylar), acting both as substrate and gate dielectric. The foil is patterned on one side with bottom-contact gold source and drain electrodes, while a thin film of gold is evaporated on the opposite side of the foil to form the gate electrode. A vacuum sublimed tetracene film is employed as an active layer for charge transport and light emission. Atomic force microscopy shows that tetracene films have a good adhesion on Mylar and exhibit a granular structure. The transistor shows unipolar p-type behavior with mobilities typically of 5×10−4cm2∕Vs. Drain-source current and electroluminescence have been simultaneously measured. Provided a suitable gate bias is applied, light emission occurs at drain-source voltages (Vds) above saturation. LETs on plastic substrates could open the way to flexible devices combining the switching function of a transistor and the light emission.
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Dates
Type | When |
---|---|
Created | 20 years, 4 months ago (March 30, 2005, 6:45 p.m.) |
Deposited | 2 years, 1 month ago (July 2, 2023, 3:37 p.m.) |
Indexed | 4 weeks ago (July 30, 2025, 6:44 a.m.) |
Issued | 20 years, 4 months ago (March 31, 2005) |
Published | 20 years, 4 months ago (March 31, 2005) |
Published Online | 20 years, 4 months ago (March 31, 2005) |
Published Print | 20 years, 4 months ago (April 4, 2005) |
@article{Santato_2005, title={Tetracene light-emitting transistors on flexible plastic substrates}, volume={86}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1898429}, DOI={10.1063/1.1898429}, number={14}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Santato, C. and Manunza, I. and Bonfiglio, A. and Cicoira, F. and Cosseddu, P. and Zamboni, R. and Muccini, M.}, year={2005}, month=mar }