화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO)
권호 18권 2호, p.2225
발표분야 재료
제목 Quantum Dot-Conducting Polymer Hybrids with Tailored Energy Levels for Efficient Light Emitting Diodes
초록 Light emitting diodes (LEDs) based on quantum dot (QD)-conducting polymer hybrids have attracted huge attention to the display industry, due to their exceptional spectral purity as well as improved solution processibility. However, extensive research on the hybrid LEDs have been hampered by low external efficiency and stability, originating from the large hole injection barrier between HOMO level of conducting polymer ligands and VB of QDs. In order to improve the device performance of the hybrid LEDs, we demonstrated the QD-conducting polymer hybrid LEDs with reduced hole injection barrier. Decrease in the energy gap between VB of QDs and HOMO level of conducting polymer ligands below 0.3 eV enables us to accomplish improved quantum efficiency as well as elongated lifetime.
저자 임재훈1, Lisa zur Borg2, 이동구3, 박명진4, Rudolf Zentel1, 이창휘1, 차국헌2
소속 1서울대, 2Institute of Organic Chemistry, 3Johannes Gutenberg-Universität Mainz, 4Germany
키워드 Quantum Dot; Conducting Polymer; Hybrid; Light Emitting Diodes
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