Study on the thermoelectric properties of porous Bi-Te films deposited using thermal evaporation on AAO template

Shiying Liu; Guojian Li; Mingdi Lan; Yongjun Piao; Yanan Zhang; Qiang Wang

doi:10.1016/j.cap.2019.12.010

Study on the thermoelectric properties of porous Bi-Te films deposited using thermal evaporation on AAO template

Shiying Liu
, Guojian Li^*
, Mingdi Lan
, Yongjun Piao
, Yanan Zhang
, Qiang Wang

^*Corresponding author for this work

Northeastern University China

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The application of thermoelectric films is limited to retain the temperature gradient. In this study, the Bi-Te films are deposited on the AAO template with a pore size of 100 nm using thermal evaporation. The results show that the conductive types of the Bi-Te film are tuned by source temperature. The power factor of the p-type porous film decreases 36% by comparing to that of the p-type nonporous film (1020 μW/mK² at 250 °C). Meanwhile, the temperature difference in the porous device is maintained and is approximately 5.0 °C. Thus, the maximum output power is achieved in the porous device (about 25 pW), which is 5 times higher than that of the nonporous device. This provides a method to improve the conversion efficiency of thermoelectric film device by maintaining the temperature difference by using porous structure.

Original language	English
Pages (from-to)	400-405
Number of pages	6
Journal	Current Applied Physics
Volume	20
Issue number	3
DOIs	https://doi.org/10.1016/j.cap.2019.12.010
State	Published - Mar 2020
Externally published	Yes

Keywords

Nanopore
Temperature difference
Thermal evaporation
Thermoelectric film

Access to Document

10.1016/j.cap.2019.12.010

Cite this

@article{41a86b0080414dc28b777af8f4993923,

title = "Study on the thermoelectric properties of porous Bi-Te films deposited using thermal evaporation on AAO template",

abstract = "The application of thermoelectric films is limited to retain the temperature gradient. In this study, the Bi-Te films are deposited on the AAO template with a pore size of 100 nm using thermal evaporation. The results show that the conductive types of the Bi-Te film are tuned by source temperature. The power factor of the p-type porous film decreases 36\% by comparing to that of the p-type nonporous film (1020 μW/mK2 at 250 °C). Meanwhile, the temperature difference in the porous device is maintained and is approximately 5.0 °C. Thus, the maximum output power is achieved in the porous device (about 25 pW), which is 5 times higher than that of the nonporous device. This provides a method to improve the conversion efficiency of thermoelectric film device by maintaining the temperature difference by using porous structure.",

keywords = "Nanopore, Temperature difference, Thermal evaporation, Thermoelectric film",

author = "Shiying Liu and Guojian Li and Mingdi Lan and Yongjun Piao and Yanan Zhang and Qiang Wang",

note = "Publisher Copyright: {\textcopyright} 2020 Korean Physical Society",

year = "2020",

month = mar,

doi = "10.1016/j.cap.2019.12.010",

language = "英语",

volume = "20",

pages = "400--405",

journal = "Current Applied Physics",

issn = "1567-1739",

publisher = "Elsevier B.V.",

number = "3",

}

TY - JOUR

T1 - Study on the thermoelectric properties of porous Bi-Te films deposited using thermal evaporation on AAO template

AU - Liu, Shiying

AU - Li, Guojian

AU - Lan, Mingdi

AU - Piao, Yongjun

AU - Zhang, Yanan

AU - Wang, Qiang

PY - 2020/3

Y1 - 2020/3

N2 - The application of thermoelectric films is limited to retain the temperature gradient. In this study, the Bi-Te films are deposited on the AAO template with a pore size of 100 nm using thermal evaporation. The results show that the conductive types of the Bi-Te film are tuned by source temperature. The power factor of the p-type porous film decreases 36% by comparing to that of the p-type nonporous film (1020 μW/mK2 at 250 °C). Meanwhile, the temperature difference in the porous device is maintained and is approximately 5.0 °C. Thus, the maximum output power is achieved in the porous device (about 25 pW), which is 5 times higher than that of the nonporous device. This provides a method to improve the conversion efficiency of thermoelectric film device by maintaining the temperature difference by using porous structure.

AB - The application of thermoelectric films is limited to retain the temperature gradient. In this study, the Bi-Te films are deposited on the AAO template with a pore size of 100 nm using thermal evaporation. The results show that the conductive types of the Bi-Te film are tuned by source temperature. The power factor of the p-type porous film decreases 36% by comparing to that of the p-type nonporous film (1020 μW/mK2 at 250 °C). Meanwhile, the temperature difference in the porous device is maintained and is approximately 5.0 °C. Thus, the maximum output power is achieved in the porous device (about 25 pW), which is 5 times higher than that of the nonporous device. This provides a method to improve the conversion efficiency of thermoelectric film device by maintaining the temperature difference by using porous structure.

KW - Nanopore

KW - Temperature difference

KW - Thermal evaporation

KW - Thermoelectric film

UR - https://www.scopus.com/pages/publications/85077380218

U2 - 10.1016/j.cap.2019.12.010

DO - 10.1016/j.cap.2019.12.010

M3 - 文章

AN - SCOPUS:85077380218

SN - 1567-1739

VL - 20

SP - 400

EP - 405

JO - Current Applied Physics

JF - Current Applied Physics

IS - 3

ER -

Study on the thermoelectric properties of porous Bi-Te films deposited using thermal evaporation on AAO template

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this