Enhanced Room-Temperature Thermoelectric Performance of In-Doped ZnO:Al Thin Films through Prefabricated Layer Doping Method

被引:9
作者
Zheng, Zhuang-Hao [1 ,2 ]
Fan, Ping [1 ]
Luo, Jing-Ting [2 ]
Liang, Guang-Xing [2 ]
Zhang, Dong-Ping [1 ]
机构
[1] Shenzhen Univ, Inst Thin Film Phys & Applicat, Coll Phys Sci & Technol, Shenzhen 518060, Peoples R China
[2] Shenzhen Key Lab Sensor Technol, Shenzhen 518060, Peoples R China
关键词
In-doped AZO; thermoelectric thin film; thermoelectric properties; ZINC-OXIDE; CERAMICS; MERIT; DISTORTION; FIGURES; POWER;
D O I
10.1007/s13391-015-4441-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this study, AZO thin films prepared by direct current reactive magnetron sputtering using a Zn-Al alloy target and In with varied content were doped through the prefabricated layer doping method in order to optimize their thermoelectric properties. The effects of In content on the room temperature microstructure and thermoelectric properties of the AZO thin films were investigated. It was found that the absolute value of the Seebeck coefficient of the thin films increases stably after In doping and reaches 153 mu V.K-1 when the In content is 0.71%. Though the electrical conductivity of In-doped thin films is smaller than those of the un-doped films, the power factor of the thin films shows a significant increase after In doping with a maximum value of 2.22 x 10(-4) W.m(-1) K-2, which is several times that of the un-doped films.
引用
收藏
页码:429 / 434
页数:6
相关论文
共 25 条
[1]   Ineffectiveness of energy filtering at grain boundaries for thermoelectric materials [J].
Bachmann, M. ;
Czerner, M. ;
Heiliger, C. .
PHYSICAL REVIEW B, 2012, 86 (11)
[2]   Cooling, heating, generating power, and recovering waste heat with thermoelectric systems [J].
Bell, Lon E. .
SCIENCE, 2008, 321 (5895) :1457-1461
[3]   Origin of the low thermal conductivity of the thermoelectric material β-Zn4Sb3: An ab initio theoretical study [J].
Chen, Weibing ;
Li, Jingbo .
APPLIED PHYSICS LETTERS, 2011, 98 (24)
[4]   Characterization of Al-doped ZnO thermoelectric materials prepared by RF plasma powder processing and hot press sintering [J].
Cheng, H. ;
Xu, X. J. ;
Hng, H. H. ;
Ma, J. .
CERAMICS INTERNATIONAL, 2009, 35 (08) :3067-3072
[5]  
Chowdhury I, 2009, NAT NANOTECHNOL, V4, P235, DOI [10.1038/NNANO.2008.417, 10.1038/nnano.2008.417]
[6]   Concentration and Mobility of Electrons in ZnO from Electrical Conductivity and Thermoelectric Power in H2 + H2O at High Temperatures [J].
Erdal, Skjalg ;
Kjolseth, Christian ;
Norby, Truls .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (39) :16785-16792
[7]   Thermoelectric properties optimization of Al-doped ZnO thin films prepared by reactive sputtering Zn-Al alloy target [J].
Fan, Ping ;
Li, Ying-zhen ;
Zheng, Zhuang-hao ;
Lin, Qing-yun ;
Luo, Jing-ting ;
Liang, Guang-xing ;
Zhang, Miao-qin ;
Chen, Min-cong .
APPLIED SURFACE SCIENCE, 2013, 284 :145-149
[8]   The high performance of a thin film thermoelectric generator with heat flow running parallel to film surface [J].
Fan, Ping ;
Zheng, Zhuang-hao ;
Cai, Zhao-kun ;
Chen, Tian-bao ;
Liu, Peng-juan ;
Cai, Xing-min ;
Zhang, Dong-ping ;
Liang, Guang-xing ;
Luo, Jing-ting .
APPLIED PHYSICS LETTERS, 2013, 102 (03)
[9]   Effect of microstructural control on thermoelectric properties of hot-pressed aluminum-doped zinc oxide [J].
Fujishiro, Y ;
Miyata, M ;
Awano, M ;
Maeda, K .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2003, 86 (12) :2063-2066
[10]   Enhancement of thermopower of Mn doped ZnO thin film [J].
Ghosh, C. K. ;
Das, S. ;
Chattopadhyay, K. K. .
PHYSICA B-CONDENSED MATTER, 2007, 399 (01) :38-46