PROJECT DETAILS
| Name: |
|
Skutterudite superlattices for Thermoelectric applications |
| Principal investigator: |
|
Ing. Jiří Navrátil, CSc. |
| From: |
|
2010-01-01 |
|
| To: |
|
2012-12-31 |
The goal of the project is the study of possibility of preparation both n-
and p-type superlattices composed of suitable compounds with skutterudite
structure. These compounds proved to be very prospective materials for
advanced thermoelectric applications in the middle temperature region.
One can expect considerable enhancement of thermoelectric figure of
merit (ZT) at properly designed and prepared superlattices in comparison
with bulk samples. Proposed compounds, i. e. partially or fully filled
skutterudites, will be prepared by means of powder metallurgy methods and
targets for pulsed laser deposition (PLD) wil be formet by hot-pressing
technology from them. The most suitable PLD conditions (substrate
temperature, energy density of the laser beam, atmosphere in the
deposition chamber) and most suitable arrangement (periodicity of
the superlattices) will be studied to achieve as best as possible ZT
values of the prepared superlattices. The ZT will be measured by Harman
method. The thermal conductivity will be characterized by means of
scanning thermal microscope.
