Journal
CHEMISTRY OF MATERIALS
Volume 21, Issue 15, Pages 3586-3592Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm900624z
Keywords
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Funding
- NIH [EB-R01-00832]
- NSF [DMR-0701462]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0701462] Funding Source: National Science Foundation
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Through selective microwave absorption, we demonstrate the ability to activate TOPS its an efficient Sulfur donor, allowing the rapid (18 m) growth of highly emissive (PLQY = 33%), Zn blende CdS quantum dots (QDs) passivated by TOP/TOPS in the 4-6 nm size regime (5% size dispersity). The CdS QDs exhibit sharp absorption features and bandedge photoluminescence even for the largest CdS sample. Addition of hexadecylamine restricts the growth rate by limiting the Cd monomer activity and lowers overall PLQY. The use of MW chemistry for QD formation allows a highly reproducible synthetic protocol that is fully adaptable to industrial applications.
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