Journal
NANO LETTERS
Volume 11, Issue 2, Pages 461-465Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl103164z
Keywords
Quantum dots; color tuning; light-emitting electrochemical cells; QD-LECs; organic semiconductors
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Funding
- National Science Foundation [CHE-0935920]
- Western Washington University
- University of Washington
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [0935920] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1057209] Funding Source: National Science Foundation
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We report color-tunable light-emitting devices employing CdSe/ZnS quantum dots (QDs) blended into a polymer light-emitting electrochemical cell (LEC) architecture. This novel structure circumvents the charge-tunneling barrier of QDs to achieve bright, uniform, and highly voltage-independent electroluminescence, with nearly all emission generated by the QDs. By blending varying ratios of two QD materials that emit at different wavelengths, we demonstrate precise color control in a single layer device structure.
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