Texture Development and Grain Alignment of Hot‐Pressed Tetradymite Bi0.48Sb1.52Te3 via Powder Molding
Bi2Te3‐based materials possess excellent thermoelectric (TE) properties near room temperature. The microstructure's orientations of these materials have a great influence on their properties owing to the lamellar structure. Herein, a process for the preparation of bismuth telluride, named hot‐p...
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| Veröffentlicht in: | Energy technology (Weinheim, Germany) Germany), 2019-11, Vol.7 (11), p.n/a |
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| creator | Wang, Hongxiang Xiong, Chenglong Luo, Guoqiang Hu, Haoyang Yu, Bo Shao, Hezhu Tan, Xiaojian Xu, Jingtao Liu, Guoqiang Noudem, Jacques Guillaume Jiang, Jun |
| description | Bi2Te3‐based materials possess excellent thermoelectric (TE) properties near room temperature. The microstructure's orientations of these materials have a great influence on their properties owing to the lamellar structure. Herein, a process for the preparation of bismuth telluride, named hot‐pressing texture (HPT) where the hot‐pressed (HP) samples are preformed by powder molding, leads to the fine alignment of grains. The orientation factor of the HPT sample is improved by 20%, compared with that of the HP sample. After further carrier concentration optimization, the improved ZT of 1.1 at 350 K is achieved, with an average ZT of 0.9 between 300 and 500 K. Herein, it is shown that the proposed preparation process is an effective strategy for the fabrication of layered materials.
Herein, the introduced powder‐molding process before hot‐pressing improves the texture of polycrystalline Bi2Te3 by 20%. First, it is reported that Na is an effective dopant for optimizing carrier concentration. Finally, in Bi0.48Sb1.47Na0.05 Te3, a maximum ZT reaches 1.1 at 350 K. |
| doi_str_mv | 10.1002/ente.201900814 |
| format | Article |
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Herein, the introduced powder‐molding process before hot‐pressing improves the texture of polycrystalline Bi2Te3 by 20%. First, it is reported that Na is an effective dopant for optimizing carrier concentration. Finally, in Bi0.48Sb1.47Na0.05 Te3, a maximum ZT reaches 1.1 at 350 K.</description><identifier>ISSN: 2194-4288</identifier><identifier>EISSN: 2194-4296</identifier><identifier>DOI: 10.1002/ente.201900814</identifier><language>eng</language><publisher>Weinheim: Wiley Subscription Services, Inc</publisher><subject>Alignment ; anisotropy ; bismuth telluride ; Bismuth tellurides ; Carrier density ; Fabrication ; hot-pressing textures ; Lamellar structure ; Layered materials ; Molding (process) ; Optimization ; orientations ; Room temperature ; Texture ; Thermoelectric materials</subject><ispartof>Energy technology (Weinheim, Germany), 2019-11, Vol.7 (11), p.n/a</ispartof><rights>2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0003-2750-202X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fente.201900814$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fente.201900814$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Wang, Hongxiang</creatorcontrib><creatorcontrib>Xiong, Chenglong</creatorcontrib><creatorcontrib>Luo, Guoqiang</creatorcontrib><creatorcontrib>Hu, Haoyang</creatorcontrib><creatorcontrib>Yu, Bo</creatorcontrib><creatorcontrib>Shao, Hezhu</creatorcontrib><creatorcontrib>Tan, Xiaojian</creatorcontrib><creatorcontrib>Xu, Jingtao</creatorcontrib><creatorcontrib>Liu, Guoqiang</creatorcontrib><creatorcontrib>Noudem, Jacques Guillaume</creatorcontrib><creatorcontrib>Jiang, Jun</creatorcontrib><title>Texture Development and Grain Alignment of Hot‐Pressed Tetradymite Bi0.48Sb1.52Te3 via Powder Molding</title><title>Energy technology (Weinheim, Germany)</title><description>Bi2Te3‐based materials possess excellent thermoelectric (TE) properties near room temperature. The microstructure's orientations of these materials have a great influence on their properties owing to the lamellar structure. Herein, a process for the preparation of bismuth telluride, named hot‐pressing texture (HPT) where the hot‐pressed (HP) samples are preformed by powder molding, leads to the fine alignment of grains. The orientation factor of the HPT sample is improved by 20%, compared with that of the HP sample. After further carrier concentration optimization, the improved ZT of 1.1 at 350 K is achieved, with an average ZT of 0.9 between 300 and 500 K. Herein, it is shown that the proposed preparation process is an effective strategy for the fabrication of layered materials.
Herein, the introduced powder‐molding process before hot‐pressing improves the texture of polycrystalline Bi2Te3 by 20%. First, it is reported that Na is an effective dopant for optimizing carrier concentration. Finally, in Bi0.48Sb1.47Na0.05 Te3, a maximum ZT reaches 1.1 at 350 K.</description><subject>Alignment</subject><subject>anisotropy</subject><subject>bismuth telluride</subject><subject>Bismuth tellurides</subject><subject>Carrier density</subject><subject>Fabrication</subject><subject>hot-pressing textures</subject><subject>Lamellar structure</subject><subject>Layered materials</subject><subject>Molding (process)</subject><subject>Optimization</subject><subject>orientations</subject><subject>Room temperature</subject><subject>Texture</subject><subject>Thermoelectric materials</subject><issn>2194-4288</issn><issn>2194-4296</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNo9kM1OwkAUhSdGEwmydT2J69b5Z7pERDBBJbGuJ1PmlgwpbZ0WlJ2P4DP6JBYxbO5fTs7J_RC6piSmhLBbKFuIGaEJIZqKM9RjNBGRYIk6P81aX6JB06wJIZRILgnvoVUKn-02AL6HHRRVvemMsC0dngbrSzwq_Kr8u1U5nlXtz9f3IkDTgMMptMG6_ca3gO88iYV-zWgsWQoc77zFi-rDQcBPVeF8ubpCF7ktGhj89z56e5ik41k0f5k-jkfzqGaci8gx54jiSlnQiosllVpzSFSW50JqaoUEl1Fp-ZBlTC67V7ua2WSYyTyXmeV9dHP0rUP1voWmNetqG8ou0jBOGeVEJbpTJUfVhy9gb-rgNzbsDSXmANMcYJoTTDN5Tienjf8C9axqWQ</recordid><startdate>201911</startdate><enddate>201911</enddate><creator>Wang, Hongxiang</creator><creator>Xiong, Chenglong</creator><creator>Luo, Guoqiang</creator><creator>Hu, Haoyang</creator><creator>Yu, Bo</creator><creator>Shao, Hezhu</creator><creator>Tan, Xiaojian</creator><creator>Xu, Jingtao</creator><creator>Liu, Guoqiang</creator><creator>Noudem, Jacques Guillaume</creator><creator>Jiang, Jun</creator><general>Wiley Subscription Services, Inc</general><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-2750-202X</orcidid></search><sort><creationdate>201911</creationdate><title>Texture Development and Grain Alignment of Hot‐Pressed Tetradymite Bi0.48Sb1.52Te3 via Powder Molding</title><author>Wang, Hongxiang ; Xiong, Chenglong ; Luo, Guoqiang ; Hu, Haoyang ; Yu, Bo ; Shao, Hezhu ; Tan, Xiaojian ; Xu, Jingtao ; Liu, Guoqiang ; Noudem, Jacques Guillaume ; Jiang, Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p2334-d2dd06366ae8634c15883e96bff4581a45edb15a372b25c81425cba97b5ff5ba3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Alignment</topic><topic>anisotropy</topic><topic>bismuth telluride</topic><topic>Bismuth tellurides</topic><topic>Carrier density</topic><topic>Fabrication</topic><topic>hot-pressing textures</topic><topic>Lamellar structure</topic><topic>Layered materials</topic><topic>Molding (process)</topic><topic>Optimization</topic><topic>orientations</topic><topic>Room temperature</topic><topic>Texture</topic><topic>Thermoelectric materials</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Hongxiang</creatorcontrib><creatorcontrib>Xiong, Chenglong</creatorcontrib><creatorcontrib>Luo, Guoqiang</creatorcontrib><creatorcontrib>Hu, Haoyang</creatorcontrib><creatorcontrib>Yu, Bo</creatorcontrib><creatorcontrib>Shao, Hezhu</creatorcontrib><creatorcontrib>Tan, Xiaojian</creatorcontrib><creatorcontrib>Xu, Jingtao</creatorcontrib><creatorcontrib>Liu, Guoqiang</creatorcontrib><creatorcontrib>Noudem, Jacques Guillaume</creatorcontrib><creatorcontrib>Jiang, Jun</creatorcontrib><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Energy technology (Weinheim, Germany)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Hongxiang</au><au>Xiong, Chenglong</au><au>Luo, Guoqiang</au><au>Hu, Haoyang</au><au>Yu, Bo</au><au>Shao, Hezhu</au><au>Tan, Xiaojian</au><au>Xu, Jingtao</au><au>Liu, Guoqiang</au><au>Noudem, Jacques Guillaume</au><au>Jiang, Jun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Texture Development and Grain Alignment of Hot‐Pressed Tetradymite Bi0.48Sb1.52Te3 via Powder Molding</atitle><jtitle>Energy technology (Weinheim, Germany)</jtitle><date>2019-11</date><risdate>2019</risdate><volume>7</volume><issue>11</issue><epage>n/a</epage><issn>2194-4288</issn><eissn>2194-4296</eissn><abstract>Bi2Te3‐based materials possess excellent thermoelectric (TE) properties near room temperature. The microstructure's orientations of these materials have a great influence on their properties owing to the lamellar structure. Herein, a process for the preparation of bismuth telluride, named hot‐pressing texture (HPT) where the hot‐pressed (HP) samples are preformed by powder molding, leads to the fine alignment of grains. The orientation factor of the HPT sample is improved by 20%, compared with that of the HP sample. After further carrier concentration optimization, the improved ZT of 1.1 at 350 K is achieved, with an average ZT of 0.9 between 300 and 500 K. Herein, it is shown that the proposed preparation process is an effective strategy for the fabrication of layered materials.
Herein, the introduced powder‐molding process before hot‐pressing improves the texture of polycrystalline Bi2Te3 by 20%. First, it is reported that Na is an effective dopant for optimizing carrier concentration. Finally, in Bi0.48Sb1.47Na0.05 Te3, a maximum ZT reaches 1.1 at 350 K.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/ente.201900814</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-2750-202X</orcidid></addata></record> |
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| subjects | Alignment anisotropy bismuth telluride Bismuth tellurides Carrier density Fabrication hot-pressing textures Lamellar structure Layered materials Molding (process) Optimization orientations Room temperature Texture Thermoelectric materials |
| title | Texture Development and Grain Alignment of Hot‐Pressed Tetradymite Bi0.48Sb1.52Te3 via Powder Molding |
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