Journal
ACS NANO
Volume 3, Issue 11, Pages 3581-3586Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn901074r
Keywords
quantum dots; electroluminescence; photoemission spectroscopy
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Funding
- Institute for Soldier Nanotechnologies [DAAD-19-02-0002]
- Presidential Early Career Award for Scientists and Engineers
- National Defense Science and Engineering Graduate Fellowship
- National Science Foundation [DMR-02-13282]
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We investigate the effect of the electronic energy level positioning, conductivity, and morphology of metal oxide charge transport layers on the performance of light emitting devices (LEDs) that consist of a colloidally synthesized quantum dot (QD) luminescent film embedded between electron and hole injecting ceramic layers. We demonstrate that understanding of these material properties and their effect on charging processes in QDs enables the systematic design of higher efficiency QD-LEDs and excitation of QDs with different emission colors using the same device structure.
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