Energy transfer within ultralow density twin InAs quantum dots grown by droplet epitaxy.
basic_science · Level V
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- Record sourced from PubMed, PMID 19206386.
- Also identified by DOI 10.1021/nn800224p.
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Abstract
Ultralow density (approximately 10(6)/cm(2)) of twin InAs quantum dot (QD) hybrid structure was grown by a droplet epitaxy technique. The photoluminescence (PL) from ensemble and individual twin InAs QD structures showed a bimodal behavior and an energy transfer between the well-separated (approximately 190 nm) twin QDs, which was supposedly due to the special wetting ring that built the channel for exciton transfer. This research demonstrates a novel approach to fabricate lateral InAs QD pairs as the candidate for a laterally coupled QD molecule.
Medical subject headings
- Arsenicals
- Crystallization
- Indium
- Nanotechnology
- Quantum Dots