TY - JOUR
T1 - Thermoelectric properties of Inx Ga1-x N alloys
AU - Pantha, B. N.
AU - Dahal, R.
AU - Li, J.
AU - Lin, J. Y.
AU - Jiang, H. X.
AU - Pomrenke, G.
N1 - Funding Information:
This work was funded in part by the U.S. Air Force Office for Scientific Research (Grant No. FA9550-06-1-0441) and Department of Energy (Award No. 96ER45604).
PY - 2008
Y1 - 2008
N2 - Thermoelectric (TE) properties of Inx Ga1-x N alloys grown by metal organic chemical vapor deposition have been investigated. It was found that as indium concentration increases, the thermal conductivity decreases and power factor increases, which leads to an increase in the TE figure of merit (ZT). The value of ZT was found to be 0.08 at 300 K and reached 0.23 at 450 K for In0.36 Ga0.64 N alloy, which is comparable to those of SiGe based alloys. The results indicate that InGaN alloys could be potentially important TE materials for many applications, especially for prolonged TE device operation at high temperatures, such as for recovery of waste heat from automobile, aircrafts, and power plants due to their superior physical properties, including the ability of operating at high temperature/high power conditions, high mechanical strength and stability, and radiation hardness.
AB - Thermoelectric (TE) properties of Inx Ga1-x N alloys grown by metal organic chemical vapor deposition have been investigated. It was found that as indium concentration increases, the thermal conductivity decreases and power factor increases, which leads to an increase in the TE figure of merit (ZT). The value of ZT was found to be 0.08 at 300 K and reached 0.23 at 450 K for In0.36 Ga0.64 N alloy, which is comparable to those of SiGe based alloys. The results indicate that InGaN alloys could be potentially important TE materials for many applications, especially for prolonged TE device operation at high temperatures, such as for recovery of waste heat from automobile, aircrafts, and power plants due to their superior physical properties, including the ability of operating at high temperature/high power conditions, high mechanical strength and stability, and radiation hardness.
UR - http://www.scopus.com/inward/record.url?scp=38849157131&partnerID=8YFLogxK
U2 - 10.1063/1.2839309
DO - 10.1063/1.2839309
M3 - Article
AN - SCOPUS:38849157131
VL - 92
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 4
M1 - 042112
ER -