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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:
12138-09-9
Molecular Weight:
247.97
MDL number:
MFCD00011467
UNSPSC Code:
12352302
NACRES:
NA.23

form

liquid

Quality Level

100

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.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

914290-BULK:
914290-20ML:
914290-50ML:
914290-VAR:

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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, et. al.
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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