Intrinsic and extrinsic silicon semiconductors

Click For Summary
SUMMARY

The discussion centers on the calculations related to intrinsic and extrinsic silicon semiconductors, specifically focusing on a wafer of intrinsic silicon doped with 3 x 1020 acceptor atoms per cubic meter. Participants are tasked with determining the electron and hole concentrations, the position of the Fermi level within the band-gap, and the conductivity of the doped wafer using constants such as q = 1.6 x 10-19C and ni = 1.45 x 1016m-3. The calculations require a solid understanding of semiconductor physics and the relevant equations.

PREREQUISITES
  • Understanding of semiconductor doping and carrier concentration
  • Familiarity with Fermi level concepts in band theory
  • Knowledge of electrical conductivity equations in semiconductors
  • Proficiency in using constants such as q, k, ni, and EG(Si)
NEXT STEPS
  • Calculate electron and hole concentrations in doped semiconductors
  • Learn about the Fermi level position in intrinsic and extrinsic semiconductors
  • Study the equations for conductivity in semiconductors
  • Explore the effects of temperature on semiconductor properties
USEFUL FOR

Students and professionals in electrical engineering, materials science, and physics, particularly those focusing on semiconductor technology and device fabrication.

wonder
Messages
1
Reaction score
0
Can some1 please assist me with this question,i have tried every means possible with no avail.
1,
A wafer of intrinsic silicon is deliberately doped with 3 X 10^20/m^-3 of acceptor atoms
1, CAlculate the electron and hole concntration in the wafer
2,calc the position of the Fermi level in the band-gap
3calculate the conductivity of the wafer

Constants
q = 1.6 X 10^-19C,k = 1.38 X 10^-23J/K = 8.6 X 10^-5eV/K,ni = 1.45 X 10^16m-3,Nc= 2.5 X 10^25m^-3,EG(Si)= 1.1eV...
Thanks a lot in advance for your assiatance


Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
You need to attempt a solution before anyone can help you. And please show your work.
 

Similar threads

Replies
1
Views
5K
Replies
3
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
18K
  • · Replies 4 ·
Replies
4
Views
9K
  • · Replies 0 ·
Replies
0
Views
4K