Inkjet Printing of an Electron Injection Layer: New Role of Cesium Carbonate Interlayer in Polymer OLEDs
Among solution-processable techniques, inkjet printing is a potential method for manufacturing low-cost and high-resolution polymer organic light-emitting diodes (PLEDs) for displays/solid-state lighting applications. Herein, we demonstrate use of the inkjet printed cesium carbonate (Cs<sub>2&...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/1/80 |
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| author | Amruth C Beata Luszczynska Wassima Rekab Marek Zdzislaw Szymanski Jacek Ulanski |
| author_facet | Amruth C Beata Luszczynska Wassima Rekab Marek Zdzislaw Szymanski Jacek Ulanski |
| author_sort | Amruth C |
| collection | DOAJ |
| description | Among solution-processable techniques, inkjet printing is a potential method for manufacturing low-cost and high-resolution polymer organic light-emitting diodes (PLEDs) for displays/solid-state lighting applications. Herein, we demonstrate use of the inkjet printed cesium carbonate (Cs<sub>2</sub>CO<sub>3</sub>) film as an electron injection interlayer. We have elaborated the Cs<sub>2</sub>CO<sub>3</sub> ink using an alcohol-based solvent for the industrial-grade printhead. The printed Cs<sub>2</sub>CO<sub>3</sub> layer morphology was investigated by means of an optical microscope and an atomic force microscope. The PLEDs based on emissive polymer (Super Yellow) with printed Cs<sub>2</sub>CO<sub>3</sub> interlayer show a remarkable current efficiency and luminance compared to the PLEDs made without the Cs<sub>2</sub>CO<sub>3</sub> layer. Such results suggest that the Cs<sub>2</sub>CO<sub>3</sub> is a promising material for the formulation of the electron injecting inkjet inks. The possibility of inkjet printing of an efficient electron injecting layer enables in situ patterning of PLEDs’ emission area. Such a simple and flexible technique can be applied for a wide range of applications such as signage, pictograms, advertising, smart packaging, etc. |
| first_indexed | 2024-03-10T13:43:52Z |
| format | Article |
| id | doaj.art-bffad4d5cf75465e95465a72b843572e |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T13:43:52Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-bffad4d5cf75465e95465a72b843572e2023-11-21T02:46:55ZengMDPI AGPolymers2073-43602020-12-011318010.3390/polym13010080Inkjet Printing of an Electron Injection Layer: New Role of Cesium Carbonate Interlayer in Polymer OLEDsAmruth C0Beata Luszczynska1Wassima Rekab2Marek Zdzislaw Szymanski3Jacek Ulanski4Department of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, 90-924 Lodz, PolandDepartment of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, 90-924 Lodz, PolandDepartment of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, 90-924 Lodz, PolandDepartment of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, 90-924 Lodz, PolandDepartment of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, 90-924 Lodz, PolandAmong solution-processable techniques, inkjet printing is a potential method for manufacturing low-cost and high-resolution polymer organic light-emitting diodes (PLEDs) for displays/solid-state lighting applications. Herein, we demonstrate use of the inkjet printed cesium carbonate (Cs<sub>2</sub>CO<sub>3</sub>) film as an electron injection interlayer. We have elaborated the Cs<sub>2</sub>CO<sub>3</sub> ink using an alcohol-based solvent for the industrial-grade printhead. The printed Cs<sub>2</sub>CO<sub>3</sub> layer morphology was investigated by means of an optical microscope and an atomic force microscope. The PLEDs based on emissive polymer (Super Yellow) with printed Cs<sub>2</sub>CO<sub>3</sub> interlayer show a remarkable current efficiency and luminance compared to the PLEDs made without the Cs<sub>2</sub>CO<sub>3</sub> layer. Such results suggest that the Cs<sub>2</sub>CO<sub>3</sub> is a promising material for the formulation of the electron injecting inkjet inks. The possibility of inkjet printing of an efficient electron injecting layer enables in situ patterning of PLEDs’ emission area. Such a simple and flexible technique can be applied for a wide range of applications such as signage, pictograms, advertising, smart packaging, etc.https://www.mdpi.com/2073-4360/13/1/80printed PLEDsinkjet printingcesium carbonateinterlayeremission area patterningprinted/organic/flexible electronics |
| spellingShingle | Amruth C Beata Luszczynska Wassima Rekab Marek Zdzislaw Szymanski Jacek Ulanski Inkjet Printing of an Electron Injection Layer: New Role of Cesium Carbonate Interlayer in Polymer OLEDs Polymers printed PLEDs inkjet printing cesium carbonate interlayer emission area patterning printed/organic/flexible electronics |
| title | Inkjet Printing of an Electron Injection Layer: New Role of Cesium Carbonate Interlayer in Polymer OLEDs |
| title_full | Inkjet Printing of an Electron Injection Layer: New Role of Cesium Carbonate Interlayer in Polymer OLEDs |
| title_fullStr | Inkjet Printing of an Electron Injection Layer: New Role of Cesium Carbonate Interlayer in Polymer OLEDs |
| title_full_unstemmed | Inkjet Printing of an Electron Injection Layer: New Role of Cesium Carbonate Interlayer in Polymer OLEDs |
| title_short | Inkjet Printing of an Electron Injection Layer: New Role of Cesium Carbonate Interlayer in Polymer OLEDs |
| title_sort | inkjet printing of an electron injection layer new role of cesium carbonate interlayer in polymer oleds |
| topic | printed PLEDs inkjet printing cesium carbonate interlayer emission area patterning printed/organic/flexible electronics |
| url | https://www.mdpi.com/2073-4360/13/1/80 |
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