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Preparation of n‐type Bi 2 Te 3 thermoelectric materials by non‐contact dispenser printing combined with selective laser melting
Author(s) -
Wu Keping,
Yan Yonggao,
Zhang Jian,
Mao Yu,
Xie Hongyao,
Yang Jihui,
Zhang Qingjie,
Uher Ctirad,
Tang Xinfeng
Publication year - 2017
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201700067
Subject(s) - thermoelectric effect , materials science , thermoelectric materials , selective laser melting , laser , contact print , optoelectronics , bottle neck , nanotechnology , bottle , composite material , optics , microstructure , thermal conductivity , physics , thermodynamics
The manufacturing cost has been a bottle neck for broader applications of thermoelectric (TE) modules. We have developed a rapid, facile, and low cost method that combines non‐contact dispenser printing with selective laser melting (SLM) and we demonstrate it on n‐type Bi 2 Te 3 ‐based materials. Using this approach, single phase n‐type Bi 2 Te 2.7 Se 0.3 thin layers with the Seebeck coefficient of −152 µV K −1 at 300 K have been prepared. Assembling such thin layers on top of each other, the performance of thus prepared bulk sample is comparable to Bi 2 Te 3 ‐based materials fabricated by the conventional techniques. Dispenser printing combined with SLM is a promising manufacturing process for TE materials.