New adhesive tape picks up and sticks down 2D materials easily | Hacker News Reader

New adhesive tape picks up and sticks down 2D materials easily

phys.org

62 pointswglb10 comments

Read the article. Basically before the process to move graphene from a deposition chamber was: 1. Apply Scotch tape (or other stabilizing tape) 2. Use acid bath to etch away the copper the graphene was held to 3. Place the graphene where it needed to go 4. Etch away Scotch tape using a solvent

Now the steps are: 1. Apply special UV tape 2. Etch away copper substrate 3. Place the graphene where it needs to go 4. Apply UV light, so the tape is less flexible and 10% less sticky 5. Carefully peel them apart

Seems like the last step got a little easier

If they perfect it, they'd like to move larger graphene pieces (currently the largest is 10cm^2) and enabling shipping of graphene to other scientists. Currently graphene is hard to ship, as it's really delicate, usually only moved around the lab or short distances

Their diagram showed UV light applied before the dissolving of the copper. Honestly your order makes more sense

What adheres the graphene to it’s final substrate?

It’s kida sticky?

https://www.sciencedirect.com/science/article/abs/pii/S00381...

You could say it keeps Everything in Its Right Place.

It's better than waking up and sucking on a lemon.

Wow! This looks like it could be used to transfer temporary tattoos onto your arm. If that were available, my two small kids would sure love it.

Graphene tattoos!

I can see the potential for invisible rfid tagging and similar biomonitoring possibilities. But biomonitoring might be easier using cheap, remotable terahertz radars such are currently used to detect human presence/heart rate/respiratory rate/blood flow for about 2 dollars. With a 1.5m range, those might be ideal for training or augmenting facial recognition models for sentiment analysis.

Neat. Seems like the process could be be made continuous.

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