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題名 Enhanced thermoelectric properties of Cu3SbSe4 by germanium doping
作者 陳洋元
Chang, Chia-Hsiang
Chen, Cheng-Lung
Chiu, Wan-Ting
Chen, Yang-Yuan
貢獻者 應物所
關鍵詞 Thermoelectric materials; Semiconductors; Sintering; Phonon; Germanium doping
日期 2017-01
上傳時間 21-Nov-2017 17:51:16 (UTC+8)
摘要 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.
關聯 Materials Letters, Volume 186, Pages 227-230
資料類型 article
DOI https://doi.org/10.1016/j.matlet.2016.10.011
dc.contributor 應物所
dc.creator (作者) 陳洋元zh_TW
dc.creator (作者) Chang, Chia-Hsiangen_US
dc.creator (作者) Chen, Cheng-Lungen_US
dc.creator (作者) Chiu, Wan-Tingen_US
dc.creator (作者) Chen, Yang-Yuanen_US
dc.date (日期) 2017-01
dc.date.accessioned 21-Nov-2017 17:51:16 (UTC+8)-
dc.date.available 21-Nov-2017 17:51:16 (UTC+8)-
dc.date.issued (上傳時間) 21-Nov-2017 17:51:16 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/114850-
dc.description.abstract (摘要) 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.en_US
dc.format.extent 130 bytes-
dc.format.mimetype text/html-
dc.relation (關聯) Materials Letters, Volume 186, Pages 227-230en_US
dc.subject (關鍵詞) Thermoelectric materials; Semiconductors; Sintering; Phonon; Germanium dopingen_US
dc.title (題名) Enhanced thermoelectric properties of Cu3SbSe4 by germanium dopingen_US
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.1016/j.matlet.2016.10.011
dc.doi.uri (DOI) https://doi.org/10.1016/j.matlet.2016.10.011