Melzer, Christian ; Seggern, Heinz von (2014)
The color change in polychromatic organic light-emitting field-effect transistors: Optical filtering versus reemission.
In: Organic Electronics, 15 (10)
doi: 10.1016/j.orgel.2014.07.007
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
In this contribution the color conversion process of a polychromatic organic light-emitting field-effect transistor (OLET) is revisited on the basis of an analytic device model. The device of interest consists of a color conversion layer out of rubrene on top of a monochromatic light-emitting transistor based on poly(9,9-di-n-octyl-fluorene-alt-benzothiadiazole) (F8BT). The model describes the relation of color coordinate and emission intensity – set by the applied drain and gate biases – linking the optoelectronic response of the employed monochromatic OLET to the optical processes occurring in the color conversion layer. The model shows that the color shift is rather due to partial absorption of the F8BT emission by rubrene than, as was claimed earlier, due to a color conversion process by absorption and reemission in the conversion layer. In addition to the earlier publication, it will be demonstrated that such a device allows for an independent electrical tunability of emission intensity and color coordinate within the color span of the F8BT and the rubrene spectrum being a unique feature of such a polychromatic light-emitting field-effect transistor.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Melzer, Christian ; Seggern, Heinz von |
| Art des Eintrags: | Bibliographie |
| Titel: | The color change in polychromatic organic light-emitting field-effect transistors: Optical filtering versus reemission |
| Sprache: | Englisch |
| Publikationsjahr: | Oktober 2014 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Organic Electronics |
| Jahrgang/Volume einer Zeitschrift: | 15 |
| (Heft-)Nummer: | 10 |
| DOI: | 10.1016/j.orgel.2014.07.007 |
| Kurzbeschreibung (Abstract): | In this contribution the color conversion process of a polychromatic organic light-emitting field-effect transistor (OLET) is revisited on the basis of an analytic device model. The device of interest consists of a color conversion layer out of rubrene on top of a monochromatic light-emitting transistor based on poly(9,9-di-n-octyl-fluorene-alt-benzothiadiazole) (F8BT). The model describes the relation of color coordinate and emission intensity – set by the applied drain and gate biases – linking the optoelectronic response of the employed monochromatic OLET to the optical processes occurring in the color conversion layer. The model shows that the color shift is rather due to partial absorption of the F8BT emission by rubrene than, as was claimed earlier, due to a color conversion process by absorption and reemission in the conversion layer. In addition to the earlier publication, it will be demonstrated that such a device allows for an independent electrical tunability of emission intensity and color coordinate within the color span of the F8BT and the rubrene spectrum being a unique feature of such a polychromatic light-emitting field-effect transistor. |
| Freie Schlagworte: | Organic semiconductor, Organic field-effect transistor, Organic light-emitting field-effect transistor, Polychromatic organic field-effect transistor |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Elektronische Materialeigenschaften |
| Hinterlegungsdatum: | 25 Mär 2015 13:18 |
| Letzte Änderung: | 13 Aug 2021 14:08 |
| PPN: | |
| Sponsoren: | The author thanks the German Science Foundation (DFG - Germany) for financial support through Graduiertenkolleg 1037 (TICMO)., F8BT was kindly provided by Dr. S. Janietz of the Fraunhofer-Institut für Angewandte Polymerforschung, Potsdam. |
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