Fluorine-Doped Tin Oxide Colloidal Nanocrystals

Fluorine-doped tin oxide (FTO) is one of the most studied and established materials for transparent electrode applications. However, the syntheses for FTO nanocrystals are currently very limited, especially for stable and well-dispersed colloids. Here, we present the synthesis and detailed characterization of FTO nanocrystals using a colloidal heat-up reaction. High-quality SnO2 quantum dots are synthesized with a tuneable fluorine amount up to ~10% atomic, and their structural, morphological and optical properties are fully characterized. These colloids show composition-dependent optical properties, including the rise of a dopant-induced surface plasmon resonance in the near infrared.

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Characterization of the Optical Properties of Heavy Metal Ions Using Surface Plasmon Resonance Technique

Optics and Photonics Journal ◽

10.4236/opj.2011.13020 ◽

2011 ◽

Vol 01 (03) ◽

pp. 116-123 ◽

Cited By ~ 23

Author(s):

Yap Wing Fen ◽

W. Mahmood Mat Yunus

Keyword(s):

Heavy Metal ◽

Optical Properties ◽

Surface Plasmon Resonance ◽

Metal Ions ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Heavy Metal Ions ◽

Resonance Technique

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Large-Scale Synthesis of High-Quality Metal Sulfide Semiconductor Quantum Dots with Tunable Surface-Plasmon Resonance Frequencies

Chemistry - A European Journal ◽

10.1002/chem.201201159 ◽

2012 ◽

Vol 18 (30) ◽

pp. 9230-9238 ◽

Cited By ~ 39

Author(s):

Masayuki Kanehara ◽

Hisamitsu Arakawa ◽

Tetsuya Honda ◽

Masaki Saruyama ◽

Toshiharu Teranishi

Keyword(s):

Quantum Dots ◽

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Large Scale ◽

Metal Sulfide ◽

Semiconductor Quantum Dots ◽

High Quality ◽

Resonance Frequencies ◽

Quality Metal

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Characterization of high quality ZnO nanowire surface plasmon resonance sensors on Si substrate with perforated aluminum cylindrical micropillar arrays

2010 IEEE Sensors ◽

10.1109/icsens.2010.5690136 ◽

2010 ◽

Keyword(s):

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Zno Nanowire ◽

Si Substrate ◽

High Quality ◽

Nanowire Surface ◽

Micropillar Arrays ◽

Surface Plasmon Resonance Sensors

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The Surface Plasmon Resonance Absorption of Indium Tin Oxide Nanoparticles and its Control

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1118.160 ◽

2015 ◽

Vol 1118 ◽

pp. 160-165 ◽

Cited By ~ 3

Author(s):

Yong Feng Tuo ◽

Yu Ping Wu ◽

Min Huang ◽

Kai Wang ◽

Yue Huang ◽

...

Keyword(s):

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Tin Oxide ◽

Plasmon Resonance ◽

Indium Tin Oxide ◽

Near Infrared ◽

Mixed Solution ◽

Reducing Atmosphere ◽

Oxidizing Atmosphere ◽

Tin Chloride

Indium tin oxide (ITO) nanoparticles (NPs) were prepared by a coprecipitation process from a mixed solution consisting of indium chloride and tin chloride. The surface plasmon resonance (SPR) absorption was studied under different calcinate atmospheres. The characteristics of the optical properties, especially the absorption of near-infrared (NIR) region was recorded by the UV-Vis-NIR absorption spectroscopy. The results show that the SPR absorption peak appears at 2500 nm under an oxidizing atmosphere (air) or at 1300 nm under a reducing atmosphere (a gas mixture of Ar and 5 vol% H2) when calcinated under a single atmosphere. There is no change in the plasmon frequency with the variance of calcinate temperatures and therefore no change in the free carrier concentration. However, when calcinated first at 600 °C under an oxidizing atmosphere and then reheated under a reducing atmosphere at different temperature, the SPR absorption peaks of the ITO NPs are at the range of from 1200 nm to 1430 nm, undergoing a blue shift as the reducing process temperature increases. The SPR absorption of the prepared ITO NPs is easily controlled by calcinate temperature under a process of calcination first under an oxidizing atmosphere and followed by under a reducing atmosphere.

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Plasmonic molybdenum trioxide quantum dots with noble metal-comparable surface enhanced Raman scattering

Journal of Materials Chemistry C ◽

10.1039/c7tc04807f ◽

2018 ◽

Vol 6 (9) ◽

pp. 2216-2220 ◽

Cited By ~ 14

Author(s):

Jiajia Zhang ◽

Yunmei Pan ◽

Yufei Chen ◽

Hongbin Lu

Keyword(s):

Quantum Dots ◽

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Near Infrared ◽

Molybdenum Trioxide ◽

Solution Strategy ◽

One Pot ◽

Surface Enhanced ◽

Surface Enhanced Raman ◽

Enhanced Raman Scattering

We propose a one-pot solution strategy to prepare sub-stoichiometric MoO3 quantum dots (MoO3−χ-QDs) with single-layered, vacancy-containing and few-crystalline features, which display surface plasmon resonance (SPR) in both visible and near-infrared regions without illumination.

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Binary and Ternary Mercury Chalcogenide Quantum Dots and Clusters

MRS Proceedings ◽

10.1557/proc-737-e3.3 ◽

2002 ◽

Vol 737 ◽

Author(s):

Masaru Kuno ◽

Keith A. Higginson ◽

Syed B. Qadri ◽

Mohammad Yousuf ◽

Benjamin L. Davis ◽

...

Keyword(s):

Quantum Dots ◽

Optical Properties ◽

Phase Separation ◽

Near Infrared ◽

Band Edge ◽

Band Edge Emission ◽

Edge Emission ◽

High Quality ◽

Synthetic Strategy ◽

Simultaneous Use

ABSTRACTThis paper describes the synthesis, characterization and optical properties of binary and ternary mercury chalcogenide quantum dots and clusters. Such materials were made by applying a synthetic strategy involving the simultaneous use of strong Hg(II) coordinating ligands and the explicit phase separation of both metal and chalcogen precursors. High quality QDs and clusters are obtained in this manner with sharply structured absorption and band edge emission covering the visible to near infrared.

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