Synthesis of Carbon Quantum Dots

References:
J.E. Pelayo, N. Herrera, A. Zazueta, R. Lopez, E. Saucedo, R. Ruelas, and A. Ayón,
Silicon Solar Cell Efficiency Improvement Employing the Photoluminescent, Down-Shifting Effects of Carbon And CdTe Quantum Dots,
Materials for Renewable and Sustainable Energy, March, 2016. (DOI: 10.1007/s40243-016-0070-4)
MEMS Lab Web site:
www.utsa.edu/physics/faculty/A...

[@samsundarv1013]

I really wondered the way of synthesising CQDs. thanks a lot to MEMS Lab.

[@konstantinoskotoulas1786]

Currently doing my PhD on carbon dots. Lovely video guys, well done.

[@Triforce1985]

I just started my PhD research on silicon quantum dots. This a great video ror me even with it being carbon

[@Waquas_Ahmad]

Thanks for this video.. It helped me a lot

[@drew2474]

Sounds interesting

[@treewhite596]

Really hepful

[@KIPARI.]

Preparation and performance of metal-doped carbon quantum dots

[@muhammadmehran1202]

Appreciating

[@AbdolazimHasseli]

Good job. What is the role of ethers

[@GRBtutorials]

Why didn’t you set a constant current in the power supply instead of manually adjusting the voltage?

[@uribennun8335]

Hey, is there any preference to the top-down method rather than bottom-up? it appears that this method is far more complex than bottom-up using a precursor

[@memslabutsa8137]

We are currently working on a video about the bottom-up approach.

[@rssingh2734]

What power source u are using for dissolving graphite in ethanol solution??

[@devashishpandey4810]

Excellent demo, but three questions
1) What was the concentration of ethanol used in initial step?
2) What kind of filter was used in chromatography?
3) What was the pressure of N2 pump?

[@MohanLal-of8io]

I know answer to the question 2, there is no filter used. silica gel itself acts as the filter.

[@davidtsoraev8863]

Thank you so much! My question is if after evaporating i'll get powder form of dots or they still will be in some kind of solution?

[@memslabutsa8137]

Yes David, after evaporating ethers, the QDs still will be dispersed in a certain volume of ethanol.

[@davidtsoraev8863]

@@memslabutsa8137 Could you please share what kind of silica gel are you using?

[@christopherleubner6633]

Pet ether/diethyl ether is very good for chromatography of extremely nonpolar molecules. ❤

[@absolute___zero]

will I infringe any patents if I repeat this process?

[@arktik75]

Particles size is increasing with increasing current or by decreasing it?Thanks!

[@memslabutsa8137]

The particle size increases with increasing the current.

[@arktik75]

thanks

[@kaschfrick9664]

Where Can I obtain a Publication of this Experiment in Journal Format?

[@memslabutsa8137]

Hello, the video is based on the following article:
J.E. Pelayo, N. Herrera, A. Zazueta, R. Lopez, E. Saucedo, R. Ruelas, and A. Ayón,
Silicon Solar Cell Efficiency Improvement Employing the Photoluminescent, Down-Shifting Effects of Carbon And CdTe Quantum Dots,
Materials for Renewable and Sustainable Energy, March, 2016. (DOI: 10.1007/s40243-016-0070-4)

[@kaschfrick9664]

@@memslabutsa8137 Thank you for the Article!

[@merjehlasaba]

Can we also make this from plastic waste?

[@saidos1]

Is there any easier method to purify quantum dots in order not to use dangerous chemicals?

[@RghnutritionAus]

Yeah, Citric acid.. urea and a microwave or hot plate lol

[@madansharma2700]

What the heck is the big deal about measuring NaOH and ethanol that there should be loud music in the background. Why not simply provide running commentary instead.

[@crabcrab2024]

What is this music piece? Strauß?

[@DEONJOZF]

Who recommended 😂😘✨🔥

[@nidhisharma2531]

Very irritating sound