Next Article in Journal
A Study on Improvement of Blockchain Application to Overcome Vulnerability of IoT Multiplatform Security
Previous Article in Journal
Thermal and Energy Evaluation of a Domestic Refrigerator under the Influence of the Thermal Load
Open AccessArticle

Study of Conventional Sintered Cu2Se Thermoelectric Material

Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong
*
Author to whom correspondence should be addressed.
Energies 2019, 12(3), 401; https://doi.org/10.3390/en12030401
Received: 12 December 2018 / Revised: 11 January 2019 / Accepted: 15 January 2019 / Published: 27 January 2019
(This article belongs to the Section Advanced Energy Materials)
Lead-free thermoelectric material, copper chalcogenides, have been attracting much interest from many research and industrial applications owing to their high capability of harvesting energy from heat. The state-of-the-art copper chalcogenides are commonly fabricated by the spark plasma sintering (SPS) and hot pressing (HP) techniques. Those methods are still costly and complicated particularly when compared to the conventional solid-state sintering method. Here, we report an easy-to-fabricate lead-free copper(I)-selenium (Cu2Se) that was fabricated using the conventional sintering method. The fabrication conditions, including sintering temperature and dwelling time, have been systematically studied to optimize the thermoelectric performance of Cu2Se. The optimized zT value for the pure Cu2Se was found to be 1.2 for the sample sintered at 1173 K for 2 h. The study shows that Cu2Se developed using the simple and low-cost techniques could exhibit comparable thermoelectric performance when compared with those fabricated by the SPS method, which provides an alternative potential technique to synthesize high-performance thermoelectric materials in a cost-effective way for industrialization. View Full-Text
Keywords: thermoelectric material; copper selenide; conventional sintering method thermoelectric material; copper selenide; conventional sintering method
Show Figures

Figure 1

MDPI and ACS Style

Shi, D.; Geng, Z.; Lam, K.H. Study of Conventional Sintered Cu2Se Thermoelectric Material. Energies 2019, 12, 401.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop