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?
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
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.
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)
I really wondered the way of synthesising CQDs. thanks a lot to MEMS Lab.
I just started my PhD research on silicon quantum dots. This a great video ror me even with it being carbon
Currently doing my PhD on carbon dots. Lovely video guys, well done.
Why didn’t you set a constant current in the power supply instead of manually adjusting the voltage?
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?
I know answer to the question 2, there is no filter used. silica gel itself acts as the filter.
How to synthesized carbon nitride quantum dots?
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
We are currently working on a video about the bottom-up approach.
Good job. What is the role of ethers
What is the name of the synthesis.?
Can we also make this from plastic waste?
Thanks for this video.. It helped me a lot
Pet ether/diethyl ether is very good for chromatography of extremely nonpolar molecules. ❤
Sounds interesting
Appreciating
Preparation and performance of metal-doped carbon quantum dots
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?
Yes David, after evaporating ethers, the QDs still will be dispersed in a certain volume of ethanol.
@@memslabutsa8137 Could you please share what kind of silica gel are you using?
Is there any easier method to purify quantum dots in order not to use dangerous chemicals?
Yeah, Citric acid.. urea and a microwave or hot plate lol
Particles size is increasing with increasing current or by decreasing it?Thanks!
The particle size increases with increasing the current.
thanks
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.
Where Can I obtain a Publication of this Experiment in Journal Format?
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)
@@memslabutsa8137 Thank you for the Article!
will I infringe any patents if I repeat this process?
What power source u are using for dissolving graphite in ethanol solution??
Role of Naoh in CQD
What is this music piece? Strauß?
Really hepful
Who recommended 😂😘✨🔥