Doped Nanocrystals as Plasmonic Probes of Redox Chemistry

Jain, Prashant K.; Manthiram, Karthish; Engel, Jesse; White, Sarah L.; Faucheaux, Jacob A.; Alivisatos, A. Paul

doi:10.1002/anie.201303707

Cited by 127 publications

(195 citation statements)

References 27 publications

(19 reference statements)

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“…This compositional-tunability of the surface plasmon resonance has been observed in many different shapes of particles, including spheres, rods, and disks. [ 44 ] The same principle of inserting and extracting cations to drive tunability of the plasmon resonance has also been demonstrated in transition metal oxide hosts.…”

Section: Research Newsmentioning

confidence: 88%

“…The process could be explained as a reduction of the nanocrystal, with S anions evolving from a -1 to -2 valency in the fi nal Cu 2 S. [ 43 ] Jain et al discovered that treating stroichiometric Cu 2 S with iodine or amines causes a blueshift in the plasmon energy by facilitating the extraction of copper and generating free holes (Figure 3 B). [ 44 ] Treating copper sulfi de with chemical reductants, such as sodium biphenyl or thiols causes a red-shift in the plasmon by reducing the host lattice, fi lling the free holes with electrons. This compositional-tunability of the surface plasmon resonance has been observed in many different shapes of particles, including spheres, rods, and disks.…”

Section: Research Newsmentioning

confidence: 99%

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Chemical Control of Plasmons in Metal Chalcogenide and Metal Oxide Nanostructures

et al. 2015

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The field of plasmonics has grown to impact a diverse set of scientific disciplines ranging from quantum optics and photovoltaics to metamaterials and medicine. Plasmonics research has traditionally focused on noble metals; however, any material with a sufficiently high carrier density can support surface plasmon modes. Recently, researchers have made great gains in the synthetic (both intrinsic and extrinsic) control over the morphology and doping of nanoscale oxides, pnictides, sulfides, and selenides. These synthetic advances have, collectively, blossomed into a new, emerging class of plasmonic metal chalcogenides that complement traditional metallic materials. Chalcogenide and oxide nanostructures expand plasmonic properties into new spectral domains and also provide a rich suite of chemical controls available to manipulate plasmons, such as particle doping, shape, and composition. New opportunities in plasmonic chalcogenide nanomaterials are highlighted in this article, showing how they may be used to fundamentally tune the interaction and localization of electromagnetic fields on semiconductor surfaces in a way that enables new horizons in basic research and energy-relevant applications.

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Section: Research Newsmentioning

confidence: 88%

Section: Research Newsmentioning

confidence: 99%

Chemical Control of Plasmons in Metal Chalcogenide and Metal Oxide Nanostructures

et al. 2015

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“…[36][37][38] Here, the natural NIR LSPR of semimetal TiS 2 NSs offers great opportunities for the applications in both biological technology and optic communication as demonstrated subsequently. .…”

Section: Application Of Lsprs On Photodetectors At Communication Windowmentioning

confidence: 99%

Near‐Infrared Plasmonic 2D Semimetals for Applications in Communication and Biology

Zhu

Zou

et al. 2016

Adv Funct Materials

129

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“…Jain et al proposed that this property could be exploited for plasmonic detection of several chemical processes. 63 Imaging, sensing and photothermal therapy do not conclude the range of potential application for copper chalcogenide NCs. NCs of these materials, because of their intrinsic ability to undergo cation exchange, 64 29 This suggests that a large fraction of the holes in these copper-deficient chalcogenides is actually localized.…”

Section: Review Article Chem Soc Revmentioning

confidence: 99%

New materials for tunable plasmonic colloidal nanocrystals

2014

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We present a review on the emerging materials for novel plasmonic colloidal nanocrystals. We start by explaining the basic processes involved in surface plasmon resonances in nanoparticles and then discuss the classes of nanocrystals that to date are particularly promising for tunable plasmonics: nonstoichiometric copper chalcogenides, extrinsically doped metal oxides, oxygen-deficient metal oxides and conductive metal oxides. We additionally introduce other emerging types of plasmonic nanocrystals and finally we give an outlook on nanocrystals of materials that could potentially display interesting plasmonic properties.

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Doped Nanocrystals as Plasmonic Probes of Redox Chemistry

Cited by 127 publications

References 27 publications

Chemical Control of Plasmons in Metal Chalcogenide and Metal Oxide Nanostructures

Chemical Control of Plasmons in Metal Chalcogenide and Metal Oxide Nanostructures

Near‐Infrared Plasmonic 2D Semimetals for Applications in Communication and Biology

New materials for tunable plasmonic colloidal nanocrystals

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