A manufacturing process that produces long strips of high-quality graphene
1–10 of 58 posts
Re: A manufacturing process that produces long strips of high-quality graphene
#2Title is definitely overblown. Roll-to-roll production is still very much a small scale process. Linear change not stepwise
Re: A manufacturing process that produces long strips of high-quality graphene
#3Title is definitely overblown. Roll-to-roll production is still very much a small scale process. Linear change not stepwise
That said wasn't the state of the art production previously measured in single digit square centimeters?
Re: A manufacturing process that produces long strips of high-quality graphene
#4Title is definitely overblown. Roll-to-roll production is still very much a small scale process. Linear change not stepwise
This might just be my confirmation bias speaking, but MIT seems to put out a lot of moverblown and clickbait-y headlines about their research.
Re: A manufacturing process that produces long strips of high-quality graphene
#5Title is definitely overblown. Roll-to-roll production is still very much a small scale process. Linear change not stepwise
Piecemeal batch production to continuous roll-to-roll production is most definitely a step change.
Continuous production allows for mass production, quality monitoring, and progressively increase in width, in a way that is not possible with batch process
Re: A manufacturing process that produces long strips of high-quality graphene
#6Title is definitely overblown. Roll-to-roll production is still very much a small scale process. Linear change not stepwise
This might just be my confirmation bias speaking, but MIT seems to put out a lot of moverblown and clickbait-y headlines about their research.
This is the case for every press release office for every research university, I'm afraid. Some just get broader attention.
Re: A manufacturing process that produces long strips of high-quality graphene
#7Many applications of Graphene are already on the market (ex. lighter and stiffer bicycle frames, bicycle tires, sports equipment, electronic inks and paints etc). However, these are based on lower quality Graphene powders or nanoplatelets (essentially a commodity at this point) which are used as an additive to a starting epoxy or resin material.
Chemical Vapor Deposition (CVD) is the method used to produce the highest quality graphene (usually on Copper). Several companies (Graphenea etc) have scaled up CVD and continue to work towards much lower $ / m^2 targets in the near future.
The main challenge in the industry is currently the transfer step. Current methods to transfer Graphene from growth substrate to target substrate are inefficient and not amenable to high volume manufacturing.
"Roll to Roll" (what the paper is referring to) aims to solve this - companies like Samsung, LG, and Sony have been exploring Roll to Roll systems for flexible electronics/display applications.
After flexible applications, the next step is to enable CMOS compatibility / transfer to Silicon wafers. I'm the co-founder of a company in Austin that is working towards this.
Re: A manufacturing process that produces long strips of high-quality graphene
#8Many applications of Graphene are already on the market (ex. lighter and stiffer bicycle frames, bicycle tires, sports equipment, electronic inks and paints etc). However, these are based on lower quality Graphene powders or nanoplatelets (essentially a commodity at this point) which are used as an additive to a starting epoxy or resin material. Chemical Vapor Deposition (CVD) is the method used to produce the highes…
> Several companies (Graphenea etc) have scaled up CVD and continue to work towards much lower $ / m^2 targets in the near future.
What is the approximate commercial cost of CVD-produced graphene sheets?
Re: A manufacturing process that produces long strips of high-quality graphene
#9Many applications of Graphene are already on the market (ex. lighter and stiffer bicycle frames, bicycle tires, sports equipment, electronic inks and paints etc). However, these are based on lower quality Graphene powders or nanoplatelets (essentially a commodity at this point) which are used as an additive to a starting epoxy or resin material. Chemical Vapor Deposition (CVD) is the method used to produce the highes…
> Several companies (Graphenea etc) have scaled up CVD and continue to work towards much lower $ / m^2 targets in the near future. What is the approximate commercial cost of CVD-produced graphene sheets?
Re: A manufacturing process that produces long strips of high-quality graphene
#10Earlier quoted context omitted.
> Several companies (Graphenea etc) have scaled up CVD and continue to work towards much lower $ / m^2 targets in the near future. What is the approximate commercial cost of CVD-produced graphene sheets?
https://www.graphenea.com/collections/graphene-products/prod...
Wow, cool. I imagine in volume it's within a factor of two or so of that?