The stokes shift for this material is expected to be around 30 nm. If the batch has an excitonic absorption peak at 1540 nm, the photoluminescence peak can be expected to be at 1570 nm. In terms of the photoluminescence quantum yield, a value between 25 to 30% PLQY is anticipated. Additionally, a photoluminescence (PL) spectra is provided, where the solid line represents the absorption spectra, and the dashed line represents the PL spectra.
925535
Infrared PbS quantum dots
λmax, 1550 nm, 100 mg/mL in toluene
Synonym(s):
Fluorescent nanocrystals, INFIQ® quantum dots, Lead based core type, QDs
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100 MG
€465.00
About This Item
Recommended Products
form
liquid
Quality Level
packaging
pkg of 1 mL
concentration
100 mg/mL in toluene
particle size
<10 nm (Nanoparticle)
λmax
≤120 nm (FWHM)
1550 nm
storage temp.
2-8°C
SMILES string
[Pb]=S
InChI
1S/Pb.S
InChI key
XCAUINMIESBTBL-UHFFFAOYSA-N
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Application
Lead sulfide quantum dots are inorganic semiconductors with an outer surface coating of organic ligands. Due to their excellent photosensitivity and band-gap tunability, they find applications in photodetectors. These particles are tuned to 1550 nm and are compatible with standard silicon-based complementary metal-oxide semiconductor (CMOS) read-out circuits.
Other applications of these materials include light detection and ranging (LIDAR), 3D laser scanning, solar cells, as well as Time of Flight (ToF) sensing.
Other applications of these materials include light detection and ranging (LIDAR), 3D laser scanning, solar cells, as well as Time of Flight (ToF) sensing.
Legal Information
Product of Quantum Science Ltd
INFIQ is a registered trademark of Quantum Science Ltd.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 1A - Skin Irrit. 2 - STOT RE 2 - STOT RE 2 Inhalation - STOT SE 3
Target Organs
Central nervous system
Storage Class Code
3 - Flammable liquids
WGK
WGK 3
Flash Point(F)
39.2 °F
Flash Point(C)
4 °C
Regulatory Listings
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Integration of PbS Quantum Dot Photodiodes on Silicon for NIR Imaging.
IEEE Sensors Journal, 20(13), 6841-6848 (2020)
G L Whitworth et al.
Nature photonics, 15(10), 738-742 (2021-10-08)
Solution processed semiconductor lasers have achieved much success across the nanomaterial research community, including in organic semiconductors1,2, perovskites3,4 and colloidal semiconductor nanocrystals5,6. The ease of integration with other photonic components, and the potential for upscaling using emerging large area fabrication
Maxim S Gaponenko et al.
Applied optics, 45(3), 536-539 (2006-02-09)
PbS quantum-dot-doped glasses are demonstrated as saturable absorber Q-switches for 2 microm holmium lasers. Q-switched pulses from Ho3+:Y3Sc2Al3O12 and Ho3+:Y3Al5O12 lasers of 50 and 70 ns in duration, respectively, have been obtained demonstrating up to 13% of energy conversion efficiency
Articles
Infrared lead sulfide (PbS)-based quantum dots absorb and emit light across the near-infrared and short-wave infrared wavelengths. Our PbS quantum dots have well-characterized optoelectronic properties and surface chemistry suitable for integration into photodetectors, photovoltaics, and infrared LEDs.
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