Dynamical Study of Heat Transport Properties of Porous Silicon

Authors

  • Neringa Samuoliene Vilnius Gediminas Technical University
  • Jonas Gradauskas 1. Center for Physical Sciences and Technology and Center for Physical Sciences and Technology 2. Vilnius Gediminas Technical University
  • Algirdas Sužiedelis 1. Center for Physical Sciences and Technology and Center for Physical Sciences and Technology 2. Vilnius Gediminas Technical University
  • Marius Treideris Center for Physical Sciences and Technology and Center for Physical Sciences and Technology
  • Viktoras Vaičikauskas Center for Physical Sciences and Technology and Center for Physical Sciences and Technology

DOI:

https://doi.org/10.5755/j01.ms.21.2.5785

Keywords:

porous silicon, transient thermoelectric effect, thermal conductivity, thermoelectric material

Abstract

A new technique to determine thermal conductivity of porous silicon is proposed. Transient thermoelectric voltage is measured after a pulsed laser irradiation, and knowledge of the voltage decay time constant and porosity of the structure gives the value of the thermal conductivity. For n-type Si of 70% porosity we show the value of 35 W m-1 K-1. The method can be easily applied for any other porous or otherwise structured low-dimensional media.

DOI: http://dx.doi.org/10.5755/j01.ms.21.2.5785

Author Biographies

Neringa Samuoliene, Vilnius Gediminas Technical University

Faculty of fundamental sciences, department of physics, Lector

Jonas Gradauskas, 1. Center for Physical Sciences and Technology and Center for Physical Sciences and Technology 2. Vilnius Gediminas Technical University

profesorius
dr. doc.

Downloads

Published

2015-06-12

Issue

Vol. 21 No. 2 (2015)

Section

ELECTRONIC AND OPTICAL MATERIALS

License

 

The copyrights for articles in this journal are retained by the author(s), with first publication rights granted to the journal. By virtue of their appearance in this open-access journal, articles are free to use with proper attribution in educational and other non-commercial settings.