High-Resolution Patterning of Organic Emitting-Layer by Using Inkjet Printing and Sublimation Transfer Process
We implemented ultra-high resolution patterns of 2822 pixels-per-inch (PPI) via an inkjet printing and vacuum drying process grafted onto a sublimation transfer process. Co-solvented ink with a 1:1 ratio of N,N-dimethylformamide (DMF) to ortho-dichlrorobenzene (oDCB) was used, and the inkjet driving...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/9/1611 |
| _version_ | 1797503431334690816 |
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| author | Jun Yeub Lee Byeong-Kwon Ju Kwan Hyun Cho |
| author_facet | Jun Yeub Lee Byeong-Kwon Ju Kwan Hyun Cho |
| author_sort | Jun Yeub Lee |
| collection | DOAJ |
| description | We implemented ultra-high resolution patterns of 2822 pixels-per-inch (PPI) via an inkjet printing and vacuum drying process grafted onto a sublimation transfer process. Co-solvented ink with a 1:1 ratio of N,N-dimethylformamide (DMF) to ortho-dichlrorobenzene (oDCB) was used, and the inkjet driving waveform was optimized via analysis of Ohnesorge (Oh)—Reynolds (Re) numbers. Inkjet printing conditions on the donor substrate with 2822 PPI microchannels were investigated in detail according to the drop space and line space. Most sublimation transferred patterns have porous surfaces under drying conditions in an air atmosphere. Unlike the spin-coating process, the drying process of inkjet-printed films on the microchannel has a great effect on the sublimation of transferred thin film. Therefore, to control the morphology, we carefully investigated the drying process of the inkjet-printed inks in the microchannel. Using a vacuum drying process to control the morphology of inkjet-printed films, line patterns of 2822 PPI resolution having a root-mean-square (RMS) roughness of 1.331 nm without voids were successfully fabricated. |
| first_indexed | 2024-03-10T03:50:33Z |
| format | Article |
| id | doaj.art-32619ebed8674b36b21cc3f4f614b31e |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T03:50:33Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-32619ebed8674b36b21cc3f4f614b31e2023-11-23T08:56:52ZengMDPI AGNanomaterials2079-49912022-05-01129161110.3390/nano12091611High-Resolution Patterning of Organic Emitting-Layer by Using Inkjet Printing and Sublimation Transfer ProcessJun Yeub Lee0Byeong-Kwon Ju1Kwan Hyun Cho2Digital Transformation R&D Department, Korea Institute of Industrial Technology, Ansan-si 15588, Gyeonggi-do, KoreaDisplay and Nanosystem Laboratory, School of Electrical Engineering, Korea University, Seoul 02841, Seoungbuk-gu, KoreaDigital Transformation R&D Department, Korea Institute of Industrial Technology, Ansan-si 15588, Gyeonggi-do, KoreaWe implemented ultra-high resolution patterns of 2822 pixels-per-inch (PPI) via an inkjet printing and vacuum drying process grafted onto a sublimation transfer process. Co-solvented ink with a 1:1 ratio of N,N-dimethylformamide (DMF) to ortho-dichlrorobenzene (oDCB) was used, and the inkjet driving waveform was optimized via analysis of Ohnesorge (Oh)—Reynolds (Re) numbers. Inkjet printing conditions on the donor substrate with 2822 PPI microchannels were investigated in detail according to the drop space and line space. Most sublimation transferred patterns have porous surfaces under drying conditions in an air atmosphere. Unlike the spin-coating process, the drying process of inkjet-printed films on the microchannel has a great effect on the sublimation of transferred thin film. Therefore, to control the morphology, we carefully investigated the drying process of the inkjet-printed inks in the microchannel. Using a vacuum drying process to control the morphology of inkjet-printed films, line patterns of 2822 PPI resolution having a root-mean-square (RMS) roughness of 1.331 nm without voids were successfully fabricated.https://www.mdpi.com/2079-4991/12/9/1611inkjet printingco-solvented inkvacuum drying processsublimation transfer processhigh resolution patterningohnesorge number |
| spellingShingle | Jun Yeub Lee Byeong-Kwon Ju Kwan Hyun Cho High-Resolution Patterning of Organic Emitting-Layer by Using Inkjet Printing and Sublimation Transfer Process Nanomaterials inkjet printing co-solvented ink vacuum drying process sublimation transfer process high resolution patterning ohnesorge number |
| title | High-Resolution Patterning of Organic Emitting-Layer by Using Inkjet Printing and Sublimation Transfer Process |
| title_full | High-Resolution Patterning of Organic Emitting-Layer by Using Inkjet Printing and Sublimation Transfer Process |
| title_fullStr | High-Resolution Patterning of Organic Emitting-Layer by Using Inkjet Printing and Sublimation Transfer Process |
| title_full_unstemmed | High-Resolution Patterning of Organic Emitting-Layer by Using Inkjet Printing and Sublimation Transfer Process |
| title_short | High-Resolution Patterning of Organic Emitting-Layer by Using Inkjet Printing and Sublimation Transfer Process |
| title_sort | high resolution patterning of organic emitting layer by using inkjet printing and sublimation transfer process |
| topic | inkjet printing co-solvented ink vacuum drying process sublimation transfer process high resolution patterning ohnesorge number |
| url | https://www.mdpi.com/2079-4991/12/9/1611 |
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