Event Title
Thermoelectric Impedance Spectroscopy of P-N Type Materials
Presentation Type
Poster/Portfolio
Presenter Major(s)
Physics, Mathematics
Mentor Information
Harold Schnyders, schnydeh@gvsu.edu
Department
Physics
Location
Henry Hall Atrium 52
Start Date
13-4-2011 1:00 PM
End Date
13-4-2011 2:00 PM
Keywords
Physical Science
Abstract
It is well known that current flowing across a P-N type junction will result in a temperature gradient, known as the Peltier Effect. By the associated Seebeck Effect, this thermal gradient results in a potential difference. The thermal gradient, and the associated thermal voltage, takes time to develop. Under alternating current excitation, this could result in a thermal voltage that lags the driving signal, giving the appearance of a complex impedance. We present results from our measurements of several P, N and P-N type materials.
Thermoelectric Impedance Spectroscopy of P-N Type Materials
Henry Hall Atrium 52
It is well known that current flowing across a P-N type junction will result in a temperature gradient, known as the Peltier Effect. By the associated Seebeck Effect, this thermal gradient results in a potential difference. The thermal gradient, and the associated thermal voltage, takes time to develop. Under alternating current excitation, this could result in a thermal voltage that lags the driving signal, giving the appearance of a complex impedance. We present results from our measurements of several P, N and P-N type materials.