Solution-Processed Organic Light-Emitting Diodes Using a Lamination Method
This study aimed to improve the luminous characteristics of laminated OLEDs using the electron injection layer as an adhesive layer by introducing several materials to overcome the limitations of previous studies. We improved the adhesiveness and electron injection ability at the same time by mixing...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/14/24/11671 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850049625118998528 |
|---|---|
| author | Dong-Heon Yoo Cheol-Hee Moon |
| author_facet | Dong-Heon Yoo Cheol-Hee Moon |
| author_sort | Dong-Heon Yoo |
| collection | DOAJ |
| description | This study aimed to improve the luminous characteristics of laminated OLEDs using the electron injection layer as an adhesive layer by introducing several materials to overcome the limitations of previous studies. We improved the adhesiveness and electron injection ability at the same time by mixing polyethylene glycol (PEG) and D-sorbitol with polyethyleneimine (PEI). In addition, we introduced TPBi and PBD, which are electron-transport and hole-blocking (ET/HB) materials, to improve the electron-transport capability of laminated OLEDs. We fabricated a single-carrier device to analyze the balance of movement of holes and electrons, and a single-substrate OLED device to evaluate the luminance performance by comparing ET/HB materials. Finally, the OLED devices laminating the two substrates were manufactured by applying the optimal conditions found in the above experiments. The results showed that there was a serious imbalance between the electron current and the hole current, which was improved by introducing TPBi and PBD as ET/HB materials. In the case of the laminated OLED device, the device applying D-sorbitol to the adhesive layer showed more stable performance than the device using PEG. As a result, the laminated OLED device applying D-sorbitol showed performance similar to that of the single-substrate OLED, and operated stably even at a high voltage. |
| format | Article |
| id | doaj-art-545cbefd53aa4c9699533869b4988d7e |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-545cbefd53aa4c9699533869b4988d7e2025-08-20T02:53:41ZengMDPI AGApplied Sciences2076-34172024-12-0114241167110.3390/app142411671Solution-Processed Organic Light-Emitting Diodes Using a Lamination MethodDong-Heon Yoo0Cheol-Hee Moon1Department of Semiconductor Engineering, Hoseo University, Asan 31499, Republic of KoreaDepartment of Semiconductor Engineering, Hoseo University, Asan 31499, Republic of KoreaThis study aimed to improve the luminous characteristics of laminated OLEDs using the electron injection layer as an adhesive layer by introducing several materials to overcome the limitations of previous studies. We improved the adhesiveness and electron injection ability at the same time by mixing polyethylene glycol (PEG) and D-sorbitol with polyethyleneimine (PEI). In addition, we introduced TPBi and PBD, which are electron-transport and hole-blocking (ET/HB) materials, to improve the electron-transport capability of laminated OLEDs. We fabricated a single-carrier device to analyze the balance of movement of holes and electrons, and a single-substrate OLED device to evaluate the luminance performance by comparing ET/HB materials. Finally, the OLED devices laminating the two substrates were manufactured by applying the optimal conditions found in the above experiments. The results showed that there was a serious imbalance between the electron current and the hole current, which was improved by introducing TPBi and PBD as ET/HB materials. In the case of the laminated OLED device, the device applying D-sorbitol to the adhesive layer showed more stable performance than the device using PEG. As a result, the laminated OLED device applying D-sorbitol showed performance similar to that of the single-substrate OLED, and operated stably even at a high voltage.https://www.mdpi.com/2076-3417/14/24/11671OLEDsolution processlaminationadhesionelectron transporthole-blocking action |
| spellingShingle | Dong-Heon Yoo Cheol-Hee Moon Solution-Processed Organic Light-Emitting Diodes Using a Lamination Method Applied Sciences OLED solution process lamination adhesion electron transport hole-blocking action |
| title | Solution-Processed Organic Light-Emitting Diodes Using a Lamination Method |
| title_full | Solution-Processed Organic Light-Emitting Diodes Using a Lamination Method |
| title_fullStr | Solution-Processed Organic Light-Emitting Diodes Using a Lamination Method |
| title_full_unstemmed | Solution-Processed Organic Light-Emitting Diodes Using a Lamination Method |
| title_short | Solution-Processed Organic Light-Emitting Diodes Using a Lamination Method |
| title_sort | solution processed organic light emitting diodes using a lamination method |
| topic | OLED solution process lamination adhesion electron transport hole-blocking action |
| url | https://www.mdpi.com/2076-3417/14/24/11671 |
| work_keys_str_mv | AT dongheonyoo solutionprocessedorganiclightemittingdiodesusingalaminationmethod AT cheolheemoon solutionprocessedorganiclightemittingdiodesusingalaminationmethod |