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914290

Sigma-Aldrich

Tungsten disulfide quantum dots

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About This Item

Empirical Formula (Hill Notation):
WS2
CAS Number:
Molecular Weight:
247.97
MDL number:
UNSPSC Code:
12352302
NACRES:
NA.23

form

liquid

Quality Level

InChI

1S/2S.W

InChI key

ITRNXVSDJBHYNJ-UHFFFAOYSA-N

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General description

The transformation of 2D materials in QDs form supplement excellent properties from their quantum confinement effects, surface-volume ratio, solubility, edge-effects, tunable PL, ease to functionalize and fluorescence properties. These 2D QDs are demanding to impart new dimension to the 2D nanosheets and in order to advance to next level, the better understanding of the properties, synthesis methods and applications of 2D QDs are needed. The exciting optical properties of the WS2 QDs such as strong excitonic absorption bands covering the visible region, excellent excitonic fluorescence, highly tunable PL, atomically-thin structure, molecular size, biocompatibility, easy functionalization, enhanced photostability, higher molar extinction coefficients and long-term photostability make them attractive candidates for optical sensing.

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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2D−Materials-Based Quantum Dots: Gateway Towards Next-Generation Optical Devices
S. Dhanabalan
Advanced Optical Materials, 1700257-1700257 (2017)
Emerging 0D Transition-Metal Dichalcogenides for Sensors, Biomedicine, and Clean Energy
B. Li
Small, 13, 1700527-1700527 (2017)
Research Update: Beyond graphene?Synthesis of functionalized quantum dots of 2D materials and their applications
Musselman, et al.
APL Materials, 6, 120701-120701 (2018)

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