A photographic camera flash can instantaneously triggers the de-oxygenation reaction of graphite oxide by photothermal heating. The product is conducting, graphene-like material as shown in the video. Using a photo-mask, conducting patterns can be readily created such as the logos of Northwestern Wildcat and NSF.
To learn more about this research, visit: http://jxhuang.mccormick.northwestern.edu/
or
http://pubs.acs.org/doi/abs/10.1021/ja902348k?journalCode=jacsat
It's worth to see electrochromism in graphene:
?v=IcKSZM39F6c
hguner1 9 months ago
Could this be the first step to massive production of graphene?, looking forward to see it!
Zeikel 2 years ago