liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Programmable polymer light emitting transistors with ferroelectric polarization-enhanced channel current and light emission
TNO, Netherlands; Eindhoven University of Technology, Netherlands.
TNO, Netherlands.
Eindhoven University of Technology, Netherlands.
TNO, Netherlands.
Show others and affiliations
2012 (English)In: Organic electronics, ISSN 1566-1199, Vol. 13, no 9, 1742-1749 p.Article in journal (Refereed) Published
Abstract [en]

We present a voltage programmable polymer light emitting field-effect transistor (LEFET), consisting of a green emitting polymer (F8BT), and a ferroelectric polymer, P(VDF-TrFE), as the gate dielectric. We show by both experimental observations and numerical modeling that, when the ferroelectric gate dielectric is polarized in opposite directions at the drain and source sides of the channel, respectively, both electron and hole currents are enhanced, resulting in more charge recombination and similar to 10 times higher light emission in a ferroelectric LEFET, compared to the device with non-ferroelectric gate. As a result of the ferroelectric poling, our ferroelectric LEFETs exhibit repeated programmability in light emission, and an external quantum efficiency (EQE) of up to 1.06%. Numerical modeling reveals that the remnant polarization charge of the ferroelectric layer tends to pin the position of the recombination zone, paving the way to integrate specific optical out-coupling structures in the channel of these devices to further increase the brightness.

Place, publisher, year, edition, pages
Elsevier , 2012. Vol. 13, no 9, 1742-1749 p.
Keyword [en]
Ferroelectric polymer; Light-emitting polymer transistor; Programmable light-emission
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:liu:diva-118140DOI: 10.1016/j.orgel.2012.05.021ISI: 000306107200037OAI: diva2:813740

Funding Agencies|European Community of the MOMA project [248092]

Available from: 2015-05-25 Created: 2015-05-22 Last updated: 2015-06-04

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Kemerink, Martijn
By organisation
Chemical and Optical Sensor SystemsThe Institute of Technology
In the same journal
Organic electronics
Atom and Molecular Physics and Optics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 22 hits
ReferencesLink to record
Permanent link

Direct link