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P-115: Distinguished Student Paper: All Solution-Processed White Quantum-Dot Light-Emitting Diodes with Three-Unit Tandem Structure.
- Source :
- SID Symposium Digest of Technical Papers; May2017, Vol. 48 Issue 1, p1691-1694, 4p
- Publication Year :
- 2017
-
Abstract
- In this work, we demonstrate all-solution processed three-unit (red/green/blue) white tandem QLEDs for the first time. The white tandem devices are achieved by serially connecting the red bottom sub-QLED, the green middle sub-QLED and the blue top sub QLED using the inter-connecting layer (ICL) based on ZnMgO/PEDOT:PSS heterojunction. With the proposed ICL, the two-unit tandem QLEDs exhibit a high current efficiency of 22.22 cd/A, while the three-unit white QLEDs exhibit a peak current efficiency of 4.75 cd/A at a high luminance of 4206 cd/m<superscript>2</superscript> . Displays based on the developed white QLEDs exhibit a wide color gamut of 114% NTSC. This work confirms the effectiveness of the proposed ZnMgO/PEDOT:PSS ICL and the feasibility of making all-solution processed tandem white QLEDs by using the proposed ICL. [ABSTRACT FROM AUTHOR]
- Subjects :
- QUANTUM dot LEDs
HETEROJUNCTIONS
ELECTRIC currents
Subjects
Details
- Language :
- English
- ISSN :
- 0097966X
- Volume :
- 48
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- SID Symposium Digest of Technical Papers
- Publication Type :
- Academic Journal
- Accession number :
- 123395133
- Full Text :
- https://doi.org/10.1002/sdtp.11989