Control of quantum dot emission by colloidal plasmonic pyramids in a liquid crystal
Abstract
We study the plasmon-enhanced fluorescence of a single semiconducting quantum dot near the apex of a colloidal gold pyramid spatially localized by the elastic forces of the liquid crystal host. The gold pyramid particles were manipulated within the liquid crystal medium by laser tweezers, enabling the self-assembly of a semiconducting quantum dot dispersed in the medium near the apex of the gold pyramid, allowing us to probe the plasmon-exciton interactions. We demonstrate the effect of plasmon coupling on the fluorescence lifetime and the blinking properties of the quantum dot. Our results demonstrate that topological defects around colloidal particles in liquid crystal combined with laser tweezers provide a platform for plasmon exciton interaction studies and potentially could be extended to the scale of composite materials for nanophotonic applications.
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1599261
- Alternate Identifier(s):
- OSTI ID: 1600905
- Report Number(s):
- NREL/JA-5900-75469
Journal ID: ISSN 1094-4087; OPEXFF
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Published Article
- Journal Name:
- Optics Express
- Additional Journal Information:
- Journal Name: Optics Express Journal Volume: 28 Journal Issue: 4; Journal ID: ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; plasmonics; quantum dots; light emission; blinking
Citation Formats
Mundoor, Haridas, Cruz-Colón, Enid M., Park, Sungoh, Liu, Qingkun, Smalyukh, Ivan I., and van de Lagemaat, Jao. Control of quantum dot emission by colloidal plasmonic pyramids in a liquid crystal. United States: N. p., 2020.
Web. doi:10.1364/OE.383672.
Mundoor, Haridas, Cruz-Colón, Enid M., Park, Sungoh, Liu, Qingkun, Smalyukh, Ivan I., & van de Lagemaat, Jao. Control of quantum dot emission by colloidal plasmonic pyramids in a liquid crystal. United States. https://doi.org/10.1364/OE.383672
Mundoor, Haridas, Cruz-Colón, Enid M., Park, Sungoh, Liu, Qingkun, Smalyukh, Ivan I., and van de Lagemaat, Jao. Wed .
"Control of quantum dot emission by colloidal plasmonic pyramids in a liquid crystal". United States. https://doi.org/10.1364/OE.383672.
@article{osti_1599261,
title = {Control of quantum dot emission by colloidal plasmonic pyramids in a liquid crystal},
author = {Mundoor, Haridas and Cruz-Colón, Enid M. and Park, Sungoh and Liu, Qingkun and Smalyukh, Ivan I. and van de Lagemaat, Jao},
abstractNote = {We study the plasmon-enhanced fluorescence of a single semiconducting quantum dot near the apex of a colloidal gold pyramid spatially localized by the elastic forces of the liquid crystal host. The gold pyramid particles were manipulated within the liquid crystal medium by laser tweezers, enabling the self-assembly of a semiconducting quantum dot dispersed in the medium near the apex of the gold pyramid, allowing us to probe the plasmon-exciton interactions. We demonstrate the effect of plasmon coupling on the fluorescence lifetime and the blinking properties of the quantum dot. Our results demonstrate that topological defects around colloidal particles in liquid crystal combined with laser tweezers provide a platform for plasmon exciton interaction studies and potentially could be extended to the scale of composite materials for nanophotonic applications.},
doi = {10.1364/OE.383672},
journal = {Optics Express},
number = 4,
volume = 28,
place = {United States},
year = {2020},
month = {2}
}
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