skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Plasmonic giant quantum dots: Hybrid nanostructures for truly simultaneous optical imaging, photothermal effect and thermometry

Journal Article · · Chemical Science
DOI:https://doi.org/10.1039/c5sc00020c· OSTI ID:1234424

Hybrid semiconductor–metal nanoscale constructs are of both fundamental and practical interest. Semiconductor nanocrystals are active emitters of photons when stimulated optically, while the interaction of light with nanosized metal objects results in scattering and ohmic damping due to absorption. In a combined structure, the properties of both components can be realized together. At the same time, metal–semiconductor coupling may intervene to modify absorption and/or emission processes taking place in the semiconductor, resulting in a range of effects from photoluminescence quenching to enhancement. We show here that photostable ‘giant’ quantum dots when placed at the center of an ultrathin gold shell retain their key optical property of bright and blinking-free photoluminescence, while the metal shell imparts efficient photothermal transduction. The latter is despite the highly compact total particle size (40–60 nm “inorganic” diameter and <100 nm hydrodynamic diameter) and the very thin nature of the optically transparent Au shell. Furthermore, the sensitivity of the quantum dot emission to local temperature provides a novel internal thermometer for recording temperature during infrared irradiation-induced photothermal heating.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
2009LANL1096; SC0010697; AC52-06NA25396
OSTI ID:
1234424
Report Number(s):
LA-UR-15-20905; CSHCBM
Journal Information:
Chemical Science, Vol. 6, Issue 4; ISSN 2041-6520
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 22 works
Citation information provided by
Web of Science

References (49)

“Giant” Multishell CdSe Nanocrystal Quantum Dots with Suppressed Blinking journal April 2008
Towards non-blinking colloidal quantum dots journal June 2008
New Insights into the Complexities of Shell Growth and the Strong Influence of Particle Volume in Nonblinking “Giant” Core/Shell Nanocrystal Quantum Dots journal May 2012
Suppressed Blinking and Auger Recombination in Near-Infrared Type-II InP/CdS Nanocrystal Quantum Dots journal October 2012
Effect of shell thickness and composition on blinking suppression and the blinking mechanism in ‘giant’ CdSe/CdS nanocrystal quantum dots journal July 2010
Single-Nanocrystal Photoluminescence Spectroscopy Studies of Plasmon–Multiexciton Interactions at Low Temperature journal April 2013
Highly Emissive Multiexcitons in Steady-State Photoluminescence of Individual “Giant” CdSe/CdS Core/Shell Nanocrystals journal July 2010
Two types of luminescence blinking revealed by spectroelectrochemistry of single quantum dots journal November 2011
‘Giant’ CdSe/CdS Core/Shell Nanocrystal Quantum Dots As Efficient Electroluminescent Materials: Strong Influence of Shell Thickness on Light-Emitting Diode Performance journal December 2011
Giant Nanocrystal Quantum Dots: Stable Down-Conversion Phosphors that Exploit a Large Stokes Shift and Efficient Shell-to-Core Energy Relaxation journal May 2012
3-Dimensional Tracking of Non-blinking ‘Giant’ Quantum Dots in Live Cells journal April 2014
Nanoshells Made Easy: Improving Au Layer Growth on Nanoparticle Surfaces journal December 2008
Au Nanomatryoshkas as Efficient Near-Infrared Photothermal Transducers for Cancer Treatment: Benchmarking against Nanoshells journal May 2014
Fluorescence Enhancement by Au Nanostructures: Nanoshells and Nanorods journal February 2009
Nanoengineering of optical resonances journal May 1998
Nanoshells with Targeted Simultaneous Enhancement of Magnetic and Optical Imaging and Photothermal Therapeutic Response journal December 2009
Nanoparticle therapeutics: an emerging treatment modality for cancer journal September 2008
Plasmonic fluorescent quantum dots journal July 2009
Nanocomposite plasmonic fluorescence emitters with core/shell configurations journal January 2010
Luminescent Silica Core/Silver Shell Encapsulated with Eu(III) Complex journal October 2009
Fe 3 O 4 @SiO 2 Core/Shell Nanoparticles: The Silica Coating Regulations with a Single Core for Different Core Sizes and Shell Thicknesses journal November 2012
On the Incorporation Mechanism of Hydrophobic Quantum Dots in Silica Spheres by a Reverse Microemulsion Method journal April 2008
Silica-Coated Nanocomposites of Magnetic Nanoparticles and Quantum Dots journal April 2005
Radiative Decay Engineering: Biophysical and Biomedical Applications journal November 2001
Plasmonics for extreme light concentration and manipulation journal February 2010
Spectrally Tunable Leakage-Free Gold Nanocontainers journal December 2009
Multifunctional nanoparticles as coupled contrast agents journal July 2010
Au Nanocrystal Growth on Nanotubes Controlled by Conformations and Charges of Sequenced Peptide Templates journal May 2003
Characterizations of alumina-supported gold with temperature-programmed reduction journal November 1998
Synthesis of gold nanoshells based on the depositionprecipitation process journal March 2008
Formation of Gold Nanoparticles Using Amine Reducing Agents journal June 2006
Blending of HAuCl4 and histidine in aqueous solution: a simple approach to the Au10 cluster journal January 2011
Ultrathin Gold Nanowires Can Be Obtained by Reducing Polymeric Strands of Oleylamine−AuCl Complexes Formed via Aurophilic Interaction journal July 2008
Formation of CdSe/CdS/ZnS-Au/SiO2 dual-yolk/shell nanostructures through a Trojan-type inside-out etching strategy journal August 2012
A Solution to the PEG Dilemma: Efficient Bioconjugation of Large Gold Nanoparticles for Biodiagnostic Applications using Mixed Layers journal October 2012
Growth and reductive transformation of a gold shell around pyramidal cadmium selenide nanocrystals journal January 2010
Plasmon-in-a-Box: On the Physical Nature of Few-Carrier Plasmon Resonances journal August 2014
Nanoparticles Heat through Light Localization journal June 2014
Relative contributions to the plasmon line shape of metal nanoshells journal October 2002
Lifetime blinking in nonblinking nanocrystal quantum dots journal January 2012
Generating heat with metal nanoparticles journal February 2007
Plasmonic materials for energy: From physics to applications journal October 2013
Immunonanoshells for targeted photothermal ablation of tumor cells journal January 2006
Nanoshell-mediated near-infrared thermal therapy of tumors under magnetic resonance guidance journal November 2003
The effects of carboxylic acids on the aqueous dispersion and electrophoretic deposition of ZrO2 journal January 2012
MNPBEM – A Matlab toolbox for the simulation of plasmonic nanoparticles journal February 2012
Dual-Emitting Nanoscale Temperature Sensors journal March 2013
Bright and Grey States in CdSe-CdS Nanocrystals Exhibiting Strongly Reduced Blinking journal March 2009
Super-Poissonian Statistics of Photon Emission from Single CdSe-CdS Core-Shell Nanocrystals Coupled to Metal Nanostructures journal March 2013

Cited By (4)

Controllable synthesis of polydopamine nanoparticles in microemulsions with pH-activatable properties for cancer detection and treatment journal January 2015
Graphene quantum dot-based theranostic agents for active targeting of breast cancer journal January 2017
Optical absorption spectroscopy in hybrid systems of plasmons and excitons journal January 2019
When excitons and plasmons meet: Emerging function through synthesis and assembly journal September 2015