| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-디스플레이 |
| 제목 |
Improved Charge Injection Balance of Ink-jet Printed QLEDs by Reducing Oxygen Vacancies of ZnO NPs ETL by IPL Post-treatment |
| 초록 |
Intense Pulsed Light (IPL) post-treatment to improve the charge injection balance of the ink-jet printed quantum-dot light-emitting diodes (QLEDs) was researched. The tendency of the current-voltage-luminance (IVL) characteristics of QLEDs to deteriorate after device fabrication was analyzed by investigating the trend depending on the presence or absence of device encapsulation. The amount of traps and electrons in the zinc-oxide nanoparticles (ZnO NPs) electron transport layer (ETL) was reduced as the oxygen vacancies in the ETL were filled with oxygen by the light and thermal energy of the IPL post-treatment process. As a result, stable IVL characteristics of QLEDs was achieved by improving the hole-electron injection balance in the QD EML, and also, it was confirmed that the lifetime characteristics of QLEDs was also improved. |
| 저자 |
한영준, 강경태, 조관현
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| 소속 |
한국생산기술(연) |
| 키워드 |
Quantum-dot Light-emitting Diodes (QLED); Ink-jet Printing; Intense Pulsed Light (IPL)
|
| E-Mail |
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