Register to reply

Fermi Level Measurement

Share this thread:
KayDee01
#1
Feb23-14, 01:17 PM
P: 12
I'm supposed to be working with an STM in the coming weeks to determining the Fermi Level of some semiconductor diamond films.

I was bombarded with a lot of information by my lab supervisor and the bit of my notes about the calculation just says "Differential of voltage vs current allows us to directly observe the band gap and fermi level". I know how to use the equipment to collect information about varying voltage and tunnelling current information, but I'm a little lost as how I should be calculating the fermi level and band gap once I have all the data.

Any ideas?
Phys.Org News Partner Physics news on Phys.org
Technique simplifies the creation of high-tech crystals
Working group explores the 'frustration' of spin glasses
New analysis of oxide glass structures could guide the forecasting of melt formation in planetary interiors
ZapperZ
#2
Feb23-14, 03:34 PM
Emeritus
Sci Advisor
PF Gold
ZapperZ's Avatar
P: 29,239
Look up what dI/dV tells you. Hint: it has something to do with the tunneling density of states.

Zz.


Register to reply

Related Discussions
Fermi level Atomic, Solid State, Comp. Physics 0
Fermi Energy and Fermi Level in Semiconductors Atomic, Solid State, Comp. Physics 21
Fermi level and Fermi wavevector Advanced Physics Homework 2
Fermi level and Fermi wavevector Introductory Physics Homework 0
Fermi-Dirac statistics at the Fermi level Atomic, Solid State, Comp. Physics 17