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Chlorine Functionalized Graphene Quantum Dots

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SKU# 1188

Chlorine Functionalized Graphene Quantum Dots‚ Solution‚ CAS NO.: 7440-40-0

Product Detail

CAS NO.: 7440-40-0

Graphene quantum dots (GQDs) are nanoscale fragments of graphene that demonstrate strong quantum confinement and edge effects, resulting in a bandgap that is lacking in graphene. A bandgap in addition to tunable size, shape, and functionality gives GQDs a variety of unique and interesting properties, such as strong photoluminescence and outstanding electrical, thermal, and mechanical properties. Chlorine functionalized graphene quantum dots (Cl-GQDS), also called chlorine-doped GQDs, are capturing the interest of researchers specifically for antibacterial and photovoltaic applications. 

Antibacterial - Cl-GQDs demonstrate enhanced singlet oxygen generating abilities, robust scavenging performance, and efficient rates of free radical production, all of which lend themselves well to pro- and antibacterial activities.

Photovoltaics - Raman studies show that G and 2D peaks of GQDs are softened by chlorine doping, resulting in n-type doping. In Cl-GQD based photovoltaic detectors, both light absorbing and electron-accepting roles for photodetection have been observed; the result is an exceptionally high ratio of photocurrent to dark current.

High-quality chlorine functionalized graphene quantum dots from ACS Material are available in concentrations up to 2mg/ml in water. These solutions are transparent under natural light and emit a blue light when exposed to UV light. Contact us today for more information about this or any of our other advanced nanomaterials. Trust ACS Material for all your advanced research material needs.

Types of Graphene Quantum Dots Products
Product No.Product NameTypeCarrierStandard ConcentrationMaximum ConcentrationSize
GNQD0101 Blue Luminescent GQDs Solution Water 1 mg/ml 20 mg/ml 100ml
GNQD0111 DMF
GNQD0121 NMP
GNQD0131 Eth
GNQD0141 IPA
GNQD0201 Aminated GQDs  Solution Water 1 mg/ml 20 mg/ml 100ml
GNQD0221 Aminated GQDs Powder Powder - - - 100mg
GNQD0301 Carboxylated GQDs Solution Water 1 mg/ml 20 mg/ml 100ml
GNQD0701 Carboxylated GQDs Powder Powder - - - 100mg
GNQD0401 Chlorine Functionalized GQDs Solution Water 1 mg/ml 2 mg/ml 100ml
GNQD0501 Green GQDs Solution Water 1 mg/ml 10 mg/ml 100ml
GNQD0601 Hydroxylated GQDs Solution Water 1 mg/ml 2 mg/ml 100ml
GQDW0101 Imidazole-Modified GQDs Solution Water 1 mg/ml 10 mg/ml 100ml
GQD001A1 Imidazole-Modified GQDs Powder Powder - - - 100mg
GQD001A5 500mg
GQD00101 1g

-- New added products!

* Shelf life

  • Carboxylated and Green GQDs: ~ 3 months;
  • the rest of GQDs products:~ 6 months;
  • recommand to use them as soon as possible after open the bottle.

Please contact us if you need products other than the standard concentration and carriers listed in the table.

Preparation Method

Hydrothermal method

Characterizations

Composition:

Chlorine Functionalized Graphene Quantum Dots

Appearance:

Colorless solution

PL peak:

452 nm (reference only, actual value may vary)

Particle Size:

<6 nm

Concentration:

1 mg/ml (available up to 2mg/ml)

Solution:   

Water‚Containing a little ethylene glycol

Purity: >80%

Emission Photos (1) of ACS Material Chlorine Functionalized Graphene Quantum Dots Excited by Natural Light (left) and UV Light (right)

TEM Image (2) of ACS Material Chlorine Functionalized Graphene Quantum Dots 

Size Distribution (3) of ACS Material Chlorine Functionalized Graphene Quantum Dots 

Application Fields

Graphene quantum dots exhibit unique optical and electronic properties due to their quantum confinement and edge effects‚ and have a variety of novel applications‚ such as low-toxicity and photostable fluorescence probes for cell imaging and biosensing‚ low-cost acceptors for organic photovoltaic cells and light emitting diodes‚ a metal-free platform for surface-enhanced Raman scattering‚ and an upconverted sensitizer for modifying rutile TiO2 nanocrystals as a composite visible-light photocatalyst.

Conditions for safe storage:

Please use it as soon as possible and store at 4-24 oC in a tightly sealed container. Store in same type of container (glass/plastic) as shipped.  Do not freeze. 

Research Citations of ACS Material Products

  1. Li, Changzheng, and Yanan Yue. “Fluorescence spectroscopy of graphene quantum dots: temperature effect at different excitation wavelengths.” Nanotechnology, vol. 25, no. 43, Sept. 2014, p. 435703., doi:10.1088/0957-4484/25/43/435703.
  2. Bhatnagar, Deepika, et al. “Graphene quantum dots FRET based sensor for early detection of heart attack in human.” Biosensors and Bioelectronics, vol. 79, 2016, pp. 495–499., doi:10.1016/j.bios.2015.12.083.
  3. Liu, Yang, et al. “Electro-Optical switching of liquid crystals sandwiched between ion-Beam-Spurted graphene quantum dots-Doped PEDOT:PSS composite layers.” Optics Express, vol. 23, no. 26, 2015, p. 34071., doi:10.1364/oe.23.034071.
  4. Bhatnagar, Deepika, et al. “Ultrasensitive cardiac troponin I antibody based nanohybrid sensor for rapid detection of human heart attack.” International Journal of Biological Macromolecules, vol. 95, 2017, pp. 505–510., doi:10.1016/j.ijbiomac.2016.11.037.
  5. Nieto, Andy, et al. “Graphene reinforced metal and ceramic matrix composites: a review.” International Materials Reviews, vol. 62, no. 5, 2016, pp. 241–302., doi:10.1080/09506608.2016.1219481.
  6. Bok, Chang Han, et al. “Operating mechanisms of highly-Reproducible write-Once-Read-Many-Times memory devices based on graphene quantum dot:Poly(Methyl silsesquioxane) nanocomposites.” Applied Physics Letters, vol. 110, no. 1, Apr. 2017, p. 013301., doi:10.1063/1.4973358.
  7. Kim, Do Hyeong, et al. “Highly-Reproducible nonvolatile memristive devices based on polyvinylpyrrolidone: Graphene quantum-Dot nanocomposites.” Organic Electronics, vol. 51, 2017, pp. 156–161., doi:10.1016/j.orgel.2017.09.005.
  8. Gupta, Shagun, et al. “Ultrasensitive transglutaminase based nanosensor for early detection of celiac disease in human.” International Journal of Biological Macromolecules, vol. 105, 2017, pp. 905–911., doi:10.1016/j.ijbiomac.2017.07.126.
  9. Ooi, Poh Choon, et al. “Reduced graphene oxide preparation and its applications in solution-Processed write-Once-Read-Many-Times graphene-Based memory device.” Carbon, vol. 124, 2017, pp. 547–554., doi:10.1016/j.carbon.2017.09.004.
  10. Choi, Hwan Young, et al. “Organic electronic synapses with pinched hystereses based on graphene quantum-Dot nanocomposites.” NPG Asia Materials, vol. 9, no. 7, 2017, doi:10.1038/am.2017.133.
  11. Ooi, Poh Choon, et al. “Fabrication of transparent bistable switching memory device using plasmapolymerized hexamethyldisiloxane layers with embedded graphene quantum dots.” Thin Solid Films, vol. 645, 2018, pp. 45–50., doi:10.1016/j.tsf.2017.10.044.
  12. Wang, Changhong, et al. “Computing: Memristive Devices with Highly Repeatable Analog States Boosted by Graphene Quantum Dots.” Small, vol. 13, no. 20, 2017, doi:10.1002/smll.201770110.
  13. Bakar, Elyani Abu, Mohd Ambri Mohamed, Poh Choon Ooi, MF Mohd Razip Wee, Chang Fu Dee, and Burhanuddin Yeop Majlis. "Fabrication of indium-tin-oxide free, all-solution-processed flexible nanogenerator device using nanocomposite of barium titanate and graphene quantum dots in polyvinylidene fluoride polymer matrix." Organic Electronics 61 (2018): 289-295.
  14. Ooi, Poh Choon, MF Mohd Razip Wee, Chang Fu Dee, Chi Chin Yap, Muhammad Mat Salleh, and Burhanuddin Yeop Majlis. "Fabrication of transparent bistable switching memory device using plasmapolymerized hexamethyldisiloxane layers with embedded graphene quantum dots." Thin Solid Films 645 (2018): 45-50.
  15. Sung, Sihyun, Chaoxing Wu, Hyun Soo Jung, and Tae Whan Kim. "Highly-stable write-once-read-many-times switching behaviors of 1D–1R memristive devices based on graphene quantum dot nanocomposites." Scientific reports 8, no. 1 (2018): 12081.