Thermoelectric properties of n-type Bi2Te2.7Se0.3 with addition of nano-ZnO:Al particles

Nano Al-doped ZnO (AZO) particles were added into n-type Bi2Te2.7Se0.3 alloys by ball milling and hot pressing method. The power factor was improved by ?22% with addition of nano-AZO particles, accompanied with a ?40% decrease of lattice thermal conductivity, leading to peak ZT of ?0.85 at 323 K for Bi2Te2.7Se0.3(AZO)0.005 sample. The effects of the addition of AZO nanoparticles on the microstructure and thermoelectric transport properties are discussed.

[1]  Qian Zhang,et al.  Thermoelectric Property Studies on Cu‐Doped n‐type CuxBi2Te2.7Se0.3 Nanocomposites , 2011 .

[2]  W. S. Liu,et al.  Experimental studies on anisotropic thermoelectric properties and structures of n-type Bi2Te2.7Se0.3. , 2010, Nano letters.

[3]  P. Galtier,et al.  Undoped and Al-doped ZnO films with tuned properties grown by pulsed laser deposition , 2008 .

[4]  Gang Chen,et al.  Effect of silicon and sodium on thermoelectric properties of thallium-doped lead telluride-based materials. , 2012, Nano letters.

[5]  Vladimir D. Blank,et al.  C60‐doping of nanostructured Bi–Sb–Te thermoelectrics , 2011 .

[6]  A. Palmqvist,et al.  Composite thermoelectric materials with embedded nanoparticles , 2013, Journal of Materials Science.

[7]  Gang Chen,et al.  Suppression of Grain Growth by Additive in Nanostructured P-type Bismuth Antimony Tellurides , 2012 .

[8]  J. Sakamoto,et al.  Synthesis and evaluation of lead telluride/bismuth antimony telluride nanocomposites for thermoelectric applications , 2011 .

[9]  P. Blom,et al.  Electron and hole transport in poly(fluorene-benzothiadiazole) , 2011 .

[10]  Shinzo Takata,et al.  Highly Conductive and Transparent Aluminum Doped Zinc Oxide Thin Films Prepared by RF Magnetron Sputtering , 1984 .

[11]  W. Wang,et al.  Nanostructures for Thermoelectric Applications: Synthesis, Growth Mechanism, and Property Studies , 2010, Advanced materials.

[12]  Yaodong Liu,et al.  Al-doped ZnO films by pulsed laser deposition at room temperature , 2006 .

[13]  M. Dresselhaus,et al.  High-Thermoelectric Performance of Nanostructured Bismuth Antimony Telluride Bulk Alloys , 2008, Science.

[14]  M. Soulier,et al.  Microwave sintering and thermoelectric properties of p-type (Bi0.2Sb0.8)2Te3 powder , 2012 .

[15]  Min Zhou,et al.  Thermoelectric and mechanical properties of nano-SiC-dispersed Bi2Te3 fabricated by mechanical alloying and spark plasma sintering , 2008 .

[16]  Zhifeng Ren,et al.  Recent progress of half-Heusler for moderate temperature thermoelectric applications , 2013 .

[17]  K. Kimura,et al.  Metallic–covalent bonding conversion and thermoelectric properties of Al-based icosahedral quasicrystals and approximants , 2014, Science and technology of advanced materials.

[18]  K. Esfarjani,et al.  Enhancement of thermoelectric figure-of-merit by resonant states of aluminium doping in lead selenide , 2011 .

[19]  R. Sun,et al.  Synthesis and thermoelectric properties of Zn4Sb3/Bi0.5Sb1.5Te3 bulk nanocomposites , 2010 .