metals and semiconductors at high bias


by elionix
Tags: bias, metals, semiconductors
elionix
elionix is offline
#1
Mar29-13, 12:08 PM
P: 15
Hello,

Is there a well known theory on how metals and semiconductors should behave, electrically, while under a high voltage bias? Say, 2-3V? For example, how does the conductivity change as a function of voltage bias as we go from the low bias regime into high bias? Is there a linear dependence or is it described by a power law?

Thank you!
Phys.Org News Partner Physics news on Phys.org
Chameleon crystals could enable active camouflage (w/ video)
Atomic switcheroo explains origins of thin-film solar cell mystery
X-ray laser experiment explores how specially shocked material gets stronger
marcusl
marcusl is offline
#2
Mar29-13, 01:16 PM
Sci Advisor
PF Gold
P: 2,020
Your question is unclear. Are you talking about devices? Which ones? What does it mean to have a "metal under bias"?
elionix
elionix is offline
#3
Mar29-13, 01:22 PM
P: 15
Not devices, just a metal connected by source drain electrodes, for example.

Take a 1um diameter copper wire and sweep the potential from 0V to 3V. Will the current have a linear dependence on voltage? What about a semiconductor?

For example, theory wise, the dependence of current on temperature can be described by the Bloch Gruneisen relationship, but I was hoping for more insight on current dependence on voltage.

elionix
elionix is offline
#4
Mar30-13, 03:38 PM
P: 15

metals and semiconductors at high bias


does my question make sense?
marcusl
marcusl is offline
#5
Mar30-13, 08:29 PM
Sci Advisor
PF Gold
P: 2,020
Yes, but I'm not familiar enough with Bloch Gruniesen relations, etc. to answer it. I'm hoping someone else will chime in.


Register to reply

Related Discussions
Why do extrinsic semiconductors behave intrinsically at high temperatures? Atomic, Solid State, Comp. Physics 1
Reflectivity metals at high frequency Atomic, Solid State, Comp. Physics 4
Interesting Chemistry Question (Metals And Non Metals) Biology, Chemistry & Other Homework 2
High Voltage DC Bias IC? Electrical Engineering 4
why metals more dense than semiconductors? Atomic, Solid State, Comp. Physics 3