resistance of graphene dispersion


by simsCity
Tags: dispersion, graphene, resistance
simsCity
simsCity is offline
#1
Oct1-13, 03:46 AM
P: 7
Hi,

I just got a small bottle of graphene dispersion (not GO) on ebay and put a small drop on a ciruit board as shown in the pic. I expected to measure a finite resistance because graphene is a conductor as much as I know. But it seems to have zero conductance from what I read on the multimeter. My question is: Why does it have zero conductance? Do I have to do a processing on the dispersion before it starts to be a good conductor?

Thanks in advance...
Attached Thumbnails
graphene.jpg  
Phys.Org News Partner Physics news on Phys.org
Vacuum ultraviolet lamp of the future created in Japan
Understanding the energy and charge transfer of ions passing through membranes
High-temperature plasmonics eyed for solar, computer innovation
UltrafastPED
UltrafastPED is offline
#2
Oct1-13, 04:10 AM
Thanks
P: 1,343
It's not a conductor if there are gaps; you would need a continuous piece of graphene, or multiple pieces that are bonded together so that they conduct from one to the next.

Here is a commercial supplier, with some helpful notes:
https://graphene-supermarket.com/Con...rsion-100.html
simsCity
simsCity is offline
#3
Oct1-13, 05:55 AM
P: 7
Thanks...


Register to reply

Related Discussions
The stabbing resistance of graphene: General Physics 10
DOS of graphene General Physics 0
Building a graphene shell or other graphene hollow structures on the PC Atomic, Solid State, Comp. Physics 0
Why is graphene the way it is ? Atomic, Solid State, Comp. Physics 2
difference between Material dispersion and waveguide dispersion? Classical Physics 1