Tripathi, L. N. ; Praveena, M. ; Basu, J. K. (2013) Plasmonic Tuning of Photoluminescence from Semiconducting Quantum Dot Assemblies Plasmonics, 8 (2). pp. 657-664. ISSN 1557-1955
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Official URL: http://doi.org/10.1007/s11468-012-9452-3
Related URL: http://dx.doi.org/10.1007/s11468-012-9452-3
Abstract
We report tuning of photoluminescence enhancement and quenching from closed packed monolayers of cadmium selenide quantum dots doped with gold nanoparticles. Plasmon-mediated control of the emission intensity from the monolayers is achieved by varying the size and packing density of the quantum dots as well as the doping concentration of gold nanoparticles. We observe a unique packing density dependent crossover from enhancement to quenching and vice versa for fixed size of quantum dots and doping concentration of gold nanoparticles. We suggest that this behavior is indicative of a crossover from single particle to collective emission from quantum dots mediated by gold nanoparticles.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer Nature Switzerland AG. |
| Keywords: | Quantum Dots; Gold Nanoparticle; Exciton–plasmon Coupling; Hybrid Nanoassemblies. |
| ID Code: | 116112 |
| Deposited On: | 22 Mar 2021 07:13 |
| Last Modified: | 22 Mar 2021 07:13 |
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