{"id":58616,"date":"2016-12-29T06:30:50","date_gmt":"2016-12-28T22:30:50","guid":{"rendered":"\/\/m.iemloyee.com\/?p=58616"},"modified":"2016-12-28T12:23:02","modified_gmt":"2016-12-28T04:23:02","slug":"adv-mater-%ef%bc%9a%e5%9c%a8%e7%9f%b3%e5%a2%a8%e7%83%af%e8%a1%ac%e5%ba%95%e5%88%b6%e5%a4%87%e5%b1%82%e7%8a%b6%e7%9a%84%e9%93%8b-%e9%94%91-%e7%a2%b2%e5%90%88%e9%87%91%e7%83%ad%e7%94%b5%e8%96%84","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=58616","title":{"rendered":"Adv. Mater.\uff1a\u5728\u77f3\u58a8\u70ef\u886c\u5e95\u5236\u5907\u5c42\u72b6\u7684\u94cb-\u9511-\u78b2\u5408\u91d1\u70ed\u7535\u8584\u819c\u8303\u5fb7\u74e6\u5c14\u65af\u5916\u5ef6\u5c42"},"content":{"rendered":"

\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n

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\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u6700\u8fd1\uff0c\u6765\u81ea\u6210\u5747\u9986\u5927\u5b66\u7684Sung Wng Kim\u6559\u6388\u548cYoung Hee Lee\u6559\u6388\u5229\u7528\u77f3\u58a8\u70ef\u4f5c\u4e3a\u886c\u5e95\u5236\u5907\u4e86\u5c42\u72b6\u7ed3\u6784\u7684Bi0.5<\/sub>Sb1.5<\/sub>Te3<\/sub>\uff08BST\uff09\u5408\u91d1\uff0c\u5e76\u7814\u7a76\u4e86\u5176\u70ed\u7535\u6027\u8d28\uff0c\u8be5\u6210\u679c\u4ee5\u201c<\/strong>Multiple Converged Conduction Bands in K2<\/sub>Bi8<\/sub>Se13<\/sub>: A Promising Thermoelectric Material with Extremely Low Thermal Conductivity<\/strong>\u201d<\/strong>\u4e3a\u9898\u53d1\u8868\u57282016\u5e7412\u670819\u65e5\u7684Advanced Materials<\/strong>\u4e0a\u3002<\/p>\n

\u5b9e\u9a8c\u4e2d\u5728\u77f3\u58a8\u70ef\u886c\u5e95\u4e0a\u751f\u957f\u4e86\u9ad8\u8d28\u91cf\u7684BST\u5916\u5ef6\u8584\u819c\uff0c\u5e76\u5229\u7528\u8109\u51b2\u6fc0\u5149\u6c89\u79ef\uff08PLD\uff09\u6280\u672f\u5c06\u5176\u6210\u529f\u8f6c\u79fb\u5230\u4e86\u591a\u6676SiO2<\/sub>\uff08a-SiO2<\/sub>\uff09\u4e0a\u3002\u7ed3\u679c\u8868\u660e\uff0cBST\u8584\u819c\u8868\u73b0\u51fa\u4e86\u5f88\u9ad8\u7684\u529f\u7387\u56e0\u6570\uff0c\u76f8\u6bd4BST\u5355\u6676\uff0c\u5728300K\u7684\u6e29\u5ea6\u4e0b\u5176\u529f\u7387\u56e0\u6570\u8fbe\u5230\u4e864.67mW K-2<\/sup> m-1<\/sup>\uff0c\u4f18\u79c0\u7684\u77f3\u58a8\u70ef\u8868\u9762\u4fc3\u8fdb\u4e86\u5916\u5ef6\u5c42\u7684\u7a33\u5b9a\u751f\u957f\uff0c\u5e76\u4f7f\u5f97\u8584\u819c\u4e2d\u5177\u6709\u5f88\u5c11\u7684\u7f3a\u9677\u5bc6\u5ea6\u3002<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n

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\uff08b\uff09<\/strong>\u7528PMMA\u5c06\u77f3\u58a8\u70ef\u8f6c\u79fb\u5230a-SiO2<\/sub>\/Si\u4e0a<\/p>\n

\uff08<\/strong>c<\/strong>\uff09<\/strong>\u5229\u7528\u5316\u5b66\u5265\u79bb\u6cd5\u53bb\u9664\u77f3\u58a8\u70ef\u886c\u5e95\u4e0a\u7684PMMA<\/p>\n

\uff08<\/strong>d<\/strong>\uff09<\/strong>\u5229\u7528PLD\u6280\u672f\u5728\u77f3\u58a8\u70ef\u886c\u5e95\u4e0a\u6c89\u79efBST\u8584\u819c<\/p>\n

\uff08<\/strong>e<\/strong>\uff09<\/strong>\u751f\u957f\u5b8c\u6210\u7684BST\u8584\u819c<\/p>\n

\u56fe<\/strong>2 <\/strong>\u6837\u54c1\u7684\u62c9\u66fc\u5149\u8c31\u548c<\/strong>XRD<\/strong>\u5206\u6790<\/strong><\/p>\n

\"\"<\/p>\n

\uff08<\/strong>a<\/strong>\uff09<\/strong>a-SiO2<\/sub>\/Si\u4e0a\u7684\u77f3\u58a8\u70ef\u5728\u6c89\u79efBST\u8584\u819c\u524d\uff08\u9ed1\u8272\uff09\u540e\uff08\u84dd\u8272\uff09\u7684\u62c9\u66fc\u5149\u8c31<\/p>\n

\uff08<\/strong>b<\/strong>\uff09<\/strong>\u77f3\u58a8\u70ef\/a-SiO2<\/sub>\/Si\u548ca-SiO2<\/sub>\/Si\u886c\u5e95\u4e0aBST\u8584\u819c\u7684\u03c9-2\u03b8\u626b\u63cfXRD\u56fe<\/p>\n

\uff08<\/strong>c<\/strong>\uff09<\/strong>\u77f3\u58a8\u70ef\/a-SiO2<\/sub>\/Si\u548ca-SiO2<\/sub>\/Si\u886c\u5e95\u4e0aBST\u8584\u819c\uff08006\uff09\u7684\u03c9\u626b\u63cf\u548c015\u65b9\u5411\u7684\u03a6\u626b\u63cf<\/p>\n

\u56fe<\/strong>3<\/strong> \u4e0d\u540c\u6761\u4ef6\u4e0b<\/strong>BST<\/strong>\u8584\u819c\u7684\u7535\u5b66\u6027\u80fd\u6d4b\u91cf<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08<\/strong>b<\/strong>\uff09<\/strong>BST\/\u77f3\u58a8\u70ef\/a-SiO2<\/sub>\/Si\u548cBST\/a-SiO2<\/sub>\/Si\u4e2d\u6e29\u5ea6\u4f9d\u8d56\u7684\u970d\u5c14\u8fc1\u79fb\u7387\uff08\u03bcH<\/sub>\uff09\u548c\u8f7d\u6d41\u5b50\u6d53\u5ea6\uff08nc<\/sub>\uff09<\/p>\n

\uff08<\/strong>c<\/strong>\uff09<\/strong>BST\/\u77f3\u58a8\u70ef\/a-SiO2<\/sub>\/Si\u548cBST\/a-SiO2<\/sub>\/Si\u4e2d\u6e29\u5ea6\u4f9d\u8d56\u7684\u585e\u8d1d\u514b\u7cfb\u6570\uff08S\uff09<\/p>\n

\uff08<\/strong>d<\/strong>\uff09<\/strong>BST\u5355\u6676\u3001\u591a\u6676\u548c\u8303\u5fb7\u74e6\u5c14\u65af\u8584\u819c\u95f4\u970d\u5c14\u8fc1\u79fb\u7387\uff08\u03bcH<\/sub>\uff09\u7684\u6bd4\u8f83<\/p>\n

\uff08<\/strong>e<\/strong>\uff09<\/strong>BST\u5355\u6676\u3001\u591a\u6676\u548c\u8303\u5fb7\u74e6\u5c14\u65af\u8584\u819c\u95f4S\uff0c\u03c3\u548cS2<\/sup>\u03c3\u7684\u6bd4\u8f83<\/p>\n

\u56fe<\/strong>4<\/strong> \u77f3\u58a8\u70ef\u8868\u9762\u751f\u957f\u7684<\/strong>BST<\/strong>\u8584\u819c\u53ef\u80fd\u7684\u539f\u5b50\u6392\u5e03<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe\u4e2dB\u3001H\u548cT\u8868\u793a\u77f3\u58a8\u70ef\u4e0a\u7684\u4e09\u4e2a\u4f4d\u70b9\u3002\u8fde\u63a5B\u4f4d\u70b9\u7684\u662f\u516d\u65b9\u5bf9\u79f0\uff0c\u8fd9\u4e0eBST\u4e2dTe\u539f\u5b50\u7684\u6392\u5217\u5f88\u597d\u5951\u5408\u3002\u6839\u636eTe\u539f\u5b50\u5728B\u4f4d\u70b9\u7684\u53d6\u5411\uff0c\u53ef\u4ee5\u77e5\u9053\u5728BST\u4e2d\u6709\u4e24\u79cd\u4e0d\u540c\u7684\u539f\u5b50\u6392\u5e03\uff0c\u5728\u77f3\u58a8\u70ef\u4e0a\u5b83\u4eec\u5f7c\u6b64\u65cb\u8f6c60\u00b0\u3002\u6bcf\u79cd\u6392\u5e03\u7c7b\u578b\u90fd\u6709\u4e24\u79cd\u4e3b\u8981\u7684\u6392\u5217\uff0c\u8fd9\u4e0eB\u4f4d\u70b9\u4e0a\u7684Te\u539f\u5b50\u6570\u76f8\u5339\u914d\u3002<\/p>\n

\u56fe<\/strong>5<\/strong> BST<\/strong>\u8584\u819c\u7684\u7535\u955c\u5206\u6790<\/strong><\/p>\n

\"\"<\/p>\n

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\uff08<\/strong>b<\/strong>\uff09<\/strong>BST\u8584\u819c\u8868\u9762\u78b3\u7684EDX\u5206\u6790<\/p>\n

\uff08<\/strong>c, d<\/strong>\uff09<\/strong>BST\u8584\u819c\u6a2a\u622a\u9762\u7684HAADF-STEM\u56fe<\/p>\n

\uff08<\/strong>e<\/strong>\uff09<\/strong>\uff08d\uff09\u56fe\u4e2d\u76f8\u540c\u533a\u57df\u7684BF-STEM\u56fe<\/p>\n

\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

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\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Multiple Converged Conduction Bands in K2<\/sub>Bi8<\/sub>Se13<\/sub>: A Promising Thermoelectric Material with Extremely Low Thermal Conductivity<\/a>\uff08J. Am. Chem. Soc., 2016, DOI: 10.1021\/jacs.6b09568\uff09<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7535\u5b50\u7535\u5de5\u5b66\u672f\u7ec4\u5927\u57ce\u5c0f\u7231\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002<\/p>\n

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