政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/114850

English | 正體中文 | 简体中文 | Post-Print筆數 : 27 | Items with full text/Total items : 109948/140897 (78%)
Visitors : 46092850 Online Users : 1100

RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.

Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer

政大典藏 > College of Science > Graduate Institute of Applied Physics > Periodical Articles > Item 140.119/114850

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/114850

Title:	Enhanced thermoelectric properties of Cu3SbSe4 by germanium doping
Authors:	陳洋元 Chang, Chia-Hsiang Chen, Cheng-Lung Chiu, Wan-Ting Chen, Yang-Yuan
Contributors:	應物所
Keywords:	Thermoelectric materials;Semiconductors;Sintering;Phonon;Germanium doping
Date:	2017-01
Issue Date:	2017-11-21 17:51:16 (UTC+8)
Abstract:	Ge doped Cu3SbSe4 semiconductors with Cu deficiencies were synthesized by melting and spark plasma sintering for the investigation of their thermoelectric transport properties. Ge atoms can successfully substitute Sb lattice sites, and result in lattice shrinkage with increasing Ge content. Doping with Ge not only improves the electrical conductivity but also optimizes the power factor of Cu2.95(Sb1−xGex)Se4. Ge doped specimens also reveal a competition between alloying effects and increased carrier thermal conductivity. The zT enhancement of Ge doped alloys is mainly ascribed to the enhanced power factor and the reduced lattice thermal conductivity. As a result, Cu2.95(Sb0.96Ge0.04)Se4 reaches a maximum zT of 0.7 at 640 K, showing an approximately 35% enhancement over the pristine Cu2.95SbSe4.
Relation:	Materials Letters, Volume 186, Pages 227-230
Data Type:	article
DOI link:	https://doi.org/10.1016/j.matlet.2016.10.011
DOI:	10.1016/j.matlet.2016.10.011
Appears in Collections:	[Graduate Institute of Applied Physics] Periodical Articles

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML2	823	View/Open

社群 sharing

著作權政策宣告 Copyright Announcement

1.本網站之數位內容為國立政治大學所收錄之機構典藏，無償提供學術研究與公眾教育等公益性使用，惟仍請適度，合理使用本網站之內容，以尊重著作權人之權益。商業上之利用，則請先取得著作權人之授權。
The digital content of this website is part of National Chengchi University Institutional Repository. It provides free access to academic research and public education for non-commercial use. Please utilize it in a proper and reasonable manner and respect the rights of copyright owners. For commercial use, please obtain authorization from the copyright owner in advance.

2.本網站之製作，已盡力防止侵害著作權人之權益，如仍發現本網站之數位內容有侵害著作權人權益情事者，請權利人通知本網站維護人員(nccur@nccu.edu.tw)，維護人員將立即採取移除該數位著作等補救措施。
NCCU Institutional Repository is made to protect the interests of copyright owners. If you believe that any material on the website infringes copyright, please contact our staff(nccur@nccu.edu.tw). We will remove the work from the repository and investigate your claim.

Loading...