Merklein, Lisa ; Daume, Dominik ; Braig, Felix ; Schlisske, Stefan ; Rödlmeier, Tobias ; Mink, Marvin ; Kourkoulos, Dimitrios ; Ulber, Benjamin ; Di Biase, Manuela ; Meerholz, Klaus ; Hernandez-Sosa, Gerardo ; Lemmer, Uli ; Sauer, Hans Martin ; Dörsam, Edgar ; Scharfer, Philip ; Schabel, Wilhelm (2019)
Comparative Study of Printed Multilayer OLED Fabrication through Slot Die Coating, Gravure and Inkjet Printing, and Their Combination.
In: Colloids and Interfaces, 3 (1)
doi: 10.3390/colloids3010032
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
In this study, multilayer organic light-emitting diodes (OLEDs) consisting of three solution-processed layers are fabricated using slot die coating, gravure printing, and inkjet printing, techniques that are commonly used in the industry. Different technique combinations are investigated to successively deposit a hole injection layer (poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS)), a cross-linkable hole transport layer (N,N′-bis(4-(6-((3-ethyloxetan-3-yl)methoxy)-hexyloxy)phenyl)-N,N′-bis(4-methoxyphenyl)biphenyl-4,4′-diamin (QUPD)), and a green emissive layer (TSG-M) on top of each other. In order to compare the application techniques, the ink formulations have to be adapted to the respective process requirements. First, the influence of the application technique on the layer homogeneity of the different materials is investigated. Large area thickness measurements of the layers based on imaging color reflectometry (ICR) are used to compare the application techniques regarding the layer homogeneity and reproducible film thickness. The total stack thickness of all solution-processed layers of 32 OLEDs could be reproduced homogeneously in a process window of 30 nm for the technique combination of slot die coating and inkjet printing. The best efficiency of 13.3 cd A⁻¹ is reached for a process combination of slot die coating and gravure printing. In order to enable a statistically significant evaluation, in total, 96 OLEDs were analyzed and the corresponding 288 layers were measured successively to determine the influence of layer homogeneity on device performance.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Merklein, Lisa ; Daume, Dominik ; Braig, Felix ; Schlisske, Stefan ; Rödlmeier, Tobias ; Mink, Marvin ; Kourkoulos, Dimitrios ; Ulber, Benjamin ; Di Biase, Manuela ; Meerholz, Klaus ; Hernandez-Sosa, Gerardo ; Lemmer, Uli ; Sauer, Hans Martin ; Dörsam, Edgar ; Scharfer, Philip ; Schabel, Wilhelm |
| Art des Eintrags: | Bibliographie |
| Titel: | Comparative Study of Printed Multilayer OLED Fabrication through Slot Die Coating, Gravure and Inkjet Printing, and Their Combination |
| Sprache: | Englisch |
| Publikationsjahr: | 2019 |
| Ort: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Colloids and Interfaces |
| Jahrgang/Volume einer Zeitschrift: | 3 |
| (Heft-)Nummer: | 1 |
| Kollation: | 17 Seiten |
| DOI: | 10.3390/colloids3010032 |
| URL / URN: | https://www.mdpi.com/2504-5377/3/1/32 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | In this study, multilayer organic light-emitting diodes (OLEDs) consisting of three solution-processed layers are fabricated using slot die coating, gravure printing, and inkjet printing, techniques that are commonly used in the industry. Different technique combinations are investigated to successively deposit a hole injection layer (poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS)), a cross-linkable hole transport layer (N,N′-bis(4-(6-((3-ethyloxetan-3-yl)methoxy)-hexyloxy)phenyl)-N,N′-bis(4-methoxyphenyl)biphenyl-4,4′-diamin (QUPD)), and a green emissive layer (TSG-M) on top of each other. In order to compare the application techniques, the ink formulations have to be adapted to the respective process requirements. First, the influence of the application technique on the layer homogeneity of the different materials is investigated. Large area thickness measurements of the layers based on imaging color reflectometry (ICR) are used to compare the application techniques regarding the layer homogeneity and reproducible film thickness. The total stack thickness of all solution-processed layers of 32 OLEDs could be reproduced homogeneously in a process window of 30 nm for the technique combination of slot die coating and inkjet printing. The best efficiency of 13.3 cd A⁻¹ is reached for a process combination of slot die coating and gravure printing. In order to enable a statistically significant evaluation, in total, 96 OLEDs were analyzed and the corresponding 288 layers were measured successively to determine the influence of layer homogeneity on device performance. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Druckmaschinen und Druckverfahren (IDD) 16 Fachbereich Maschinenbau > Institut für Druckmaschinen und Druckverfahren (IDD) > Funktionales Drucken Profilbereiche Profilbereiche > Thermo-Fluids & Interfaces |
| Hinterlegungsdatum: | 29 Apr 2019 07:17 |
| Letzte Änderung: | 04 Dez 2023 12:59 |
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| Suche nach Titel in: | TUfind oder in Google |
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Comparative Study of Printed Multilayer OLED Fabrication through Slot Die Coating, Gravure and Inkjet Printing, and Their Combination. (deposited 01 Dez 2023 14:14)
- Comparative Study of Printed Multilayer OLED Fabrication through Slot Die Coating, Gravure and Inkjet Printing, and Their Combination. (deposited 29 Apr 2019 07:17) [Gegenwärtig angezeigt]
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