粒子サイズ 2 ~14nm に変更することで 700~2300nm の近赤外(NIR)範囲の光を発光または吸収の調整が可能です。
太陽電池、光検出器および赤外線LEDのアプリケーションにおける光吸収体またはIRエミッターとしての使用に適しています。
Quantum solutions社の量子ドットが使用された産業用カメラVis-SWIR(400-2000nm)がEmberion社より販売されています。
・900-1600nmの放出、700-2300nmの吸収ピークのいずれかを選択可能
・独自の発光/吸収ピーク制御により、最大±5nmを実現(880nm, 950nm, 1250nm, 1550nm などのカスタムが可能)
・高 peak to peak 値の高い結晶性
いかなる要望、質問、オンラインで製品を購入することについては[email protected] / [email protected] にお問い合わせ下さい。
QDot™ PbS Quantum Dots have the following advantages:
- Optoelectronic device grade QDs to be used in near-infrared (NIR) or short-wave infrared (SWIR) image sensors
- Unprecedented absorption/emission peaks accuracy and reproducibility (up to +/-5 nm)
- Narrow particle size distribution (FWHM of absorption and emission < 100-120 nm, STDV < 5-10%) for higher devices performance
QDot™ PbS QDs selection guidance
QDot™ PbS Quantum Dots have a broad absorption profile, from high energy photons up to NIR light.
Looking closer in the NIR range reveals that QDs can be categorised according to their absorption profile (red line “Absorption”) or emission profile (purple line “Emission). Absorption profile is categorised according to the first excitonic absorption peak, the absorption FWHM and the peak-to-valley ratio. Emission profile is characterised by emission peak, emission FWHM and PLQY. The difference between the first excitonic absorption peak and emission peal is called a stokes shift. Follow Table 1 to choose QDot™ materials based on absorption (abs) parameters, and Table 2 to choose QDot™ materials based on emission (em) parameters. QDot™ PbS QDs can be supplied as a solid paste/powder that is easily soluble in octane or any other non-polar solvents (hexane, toluene, chloroform, chlorobenzene, dichlorobenzene) in a wide range of concentration up to 100-150 mg/mL. PbS QDs in a solution form (octane, toluene or other non-polar solvents) are also available.
Table 1. Specification of QDot™ PbS Quantum Dots according to absorption (abs) peak
Catalogue Number
|
Core type
|
Absorption peak (Abs=1)
|
Average PbS core size
|
Capping ligand
|
Ligand concentration
|
Appearance
|
FWHM of absorption (Abs=1)
|
Peak-to-valley ratio
|
Stokes shift
|
Max solubility in nonpolar solvents
|
Form available
|
---|---|---|---|---|---|---|---|---|---|---|---|
QDot™ PbS-800-abs
|
PbS
|
800 +/- 15 nm
|
2.9 nm
|
Oleic acid
|
40-50 wt%
|
Black paste
|
-
|
> 1.2
|
140 nm
|
>150 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-900-abs
|
PbS
|
900 +/- 15 nm
|
3.2 nm
|
Oleic acid
|
35-45 wt%
|
Black paste
|
< 120 nm
|
> 1.5
|
120 nm
|
>150 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1000-abs
|
PbS
|
1000 +/- 15 nm
|
3.5 nm
|
Oleic acid
|
35-45 wt%
|
Black paste
|
< 120 nm
|
> 2
|
110 nm
|
>100 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1100-abs
|
PbS
|
1100 +/- 15 nm
|
4 nm
|
Oleic acid
|
30-40 wt%
|
Black powder
|
< 120 nm
|
> 3
|
100 nm
|
>100 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1200-abs
|
PbS
|
1200 +/- 15 nm
|
4.5 nm
|
Oleic acid
|
30-40 wt%
|
Black powder
|
< 120 nm
|
> 4
|
90 nm
|
>100 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1300-abs
|
PbS
|
1300 +/- 15 nm
|
5 nm
|
Oleic acid
|
30-40 wt%
|
Black powder
|
< 120 nm
|
> 5
|
80 nm
|
>100 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1400-abs
|
PbS
|
1400 +/- 15 nm
|
5.5 nm
|
Oleic acid
|
25-35 wt%
|
Black powder
|
< 120 nm
|
> 5
|
70 nm
|
>100 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1500-abs
|
PbS
|
1500 +/- 15 nm
|
6 nm
|
Oleic acid
|
25-35 wt%
|
Black powder
|
< 120 nm
|
> 6
|
50 nm
|
>50 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1600-abs
|
PbS
|
1600 +/- 20 nm
|
6.5 nm
|
Oleic acid
|
20-30 wt%
|
Black powder
|
< 120 nm
|
> 6
|
40 nm
|
>50 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1700-abs
|
PbS
|
1700 +/- 25 nm
|
7 nm
|
Oleic acid
|
20-30 wt%
|
Black powder
|
< 150 nm
|
> 3
|
N/A
|
>50 mg/mL
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1800-abs
|
PbS
|
1800 +/- 30 nm
|
8 nm
|
Oleic acid
|
15-25 wt%
|
Black powder
|
< 200 nm
|
> 2
|
N/A
|
>50 mg/mL
|
- Solid
- Octane 10 mg/mL
|
QDot™ PbS-1900-abs
|
PbS
|
1900 +/- 50 nm
|
8.5 nm
|
Oleic acid
|
15-25 wt%
|
Black powder
|
< 220 nm
|
> 1.5
|
N/A
|
50 mg/mL
|
- Solid
- Octane 10 mg/mL
|
QDot™ PbS-2000-abs
|
PbS
|
2000 +/- 50 nm
|
9 nm
|
Oleic acid
|
10-20 wt%
|
Black powder
|
< 220 nm
|
> 1.5
|
N/A
|
50 mg/mL
|
- Solid
- Octane 10 mg/mL
|
QDot™ PbS-2100-abs
|
PbS
|
2100 +/- 50 nm
|
10 nm
|
Oleic acid
|
<15 wt%
|
Black powder
|
-
|
-
|
N/A
|
50 mg/mL
|
- Solid
|
QDot™ PbS-2200-abs
|
PbS
|
2200 +/- 50 nm
|
11.5 nm
|
Oleic acid
|
<15 wt%
|
Black powder
|
-
|
-
|
N/A
|
50 mg/mL
|
- Solid
|
QDot™ PbS-2300-abs
|
PbS
|
2300 +/- 50 nm
|
14 nm
|
Oleic acid
|
<15 wt%
|
Black powder
|
-
|
-
|
N/A
|
20 mg/mL
|
- Solid
|
QDot™ PbS Quantum Dots with different solvents, concentrations, emission, and absorptions peaks are available upon request.

Table 2. Specification of QDot™ PbS Quantum Dots according to emission (em) peak
Catalogue Number
|
Core type
|
Emission peak
(Abs=1)
|
Average PbS core size
|
Capping ligand
|
Ligand concentration
|
Appearance
|
FWHM of emission (Abs=1)
|
PLQY (Abs=0.1)
|
Stokes shift
|
Form available
|
---|---|---|---|---|---|---|---|---|---|---|
QDot™ PbS-900-em
|
PbS
|
900 +/- 25 nm
|
2.7 nm
|
Oleic acid
|
40-50 wt%
|
Black paste
|
< 130 nm
|
5-40% (see
page 6)
|
120 nm
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1000-em
|
PbS
|
1000 +/- 25 nm
|
3.0 nm
|
Oleic acid
|
35-45 wt%
|
Black paste
|
< 130 nm
|
5-40% (see
page 6)
|
110 nm
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1100-em
|
PbS
|
1100 +/- 25 nm
|
3.3 nm
|
Oleic acid
|
35-45 wt%
|
Black powder
|
< 130 nm
|
5-40% (see
page 6)
|
100 nm
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1200-em
|
PbS
|
1200 +/- 25 nm
|
3.8 nm
|
Oleic acid
|
30-40 wt%
|
Black powder
|
< 130 nm
|
5-40% (see
page 6)
|
90 nm
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1300-em
|
PbS
|
1300 +/- 25 nm
|
4.5 nm
|
Oleic acid
|
30-40 wt%
|
Black powder
|
< 140 nm
|
5-40% (see
page 6)
|
80 nm
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1400-em
|
PbS
|
1400 +/- 25 nm
|
5 nm
|
Oleic acid
|
30-40 wt%
|
Black powder
|
< 140 nm
|
5-40% (see
page 6)
|
70 nm
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1500-em
|
PbS
|
1500 +/- 25 nm
|
5.5 nm
|
Oleic acid
|
25-35 wt%
|
Black powder
|
< 140 nm
|
5-40% (see
page 6)
|
50 nm
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS-1600-em
|
PbS
|
1600 +/- 25 nm
|
6 nm
|
Oleic acid
|
25-35 wt%
|
Black powder
|
< 140 nm
|
5-40% (see
page 6)
|
40 nm
|
- Solid
- Toluene 10 mg/mL
- Octane 10 mg/mL
|
QDot™ PbS Quantum Dots with different solvents, concentrations, emission and absorptions peaks are available upon request.
Optical profiles of QDot™ PbS Quantum Dots according to emission (em) peak




Notes for handling
Shelf Life 12 months. Shipping temperature from 4-25 °C. Storage temperature from 4-25 °C. Store in DARK conditions, in original packaging or in airtight, sealed packaging inside a glovebox (under inert atmosphere). Repackage or dissolve in a glovebox only. Use anhydrous solvents only. Avoid contact with air.
PbS QDs solids are easily soluble in octane, or any other non-polar solvents (hexane, toluene, chloroform, chlorobenzene, dichlorobenzene) in a wide range of concentrations up to 100-150 mg/mL (see Table 1). Dissolve in a glove box only. Use anhydrous solvents only. Filter the solution by PTFE or PVDF filters before processing. Follow the video for the detailed guide how to dissolve the QDot™ PbS powders:
https://www.youtube.com/watch?v=-sLBZwA147c