{"id":243411,"date":"2022-10-19T08:30:49","date_gmt":"2022-10-19T00:30:49","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=243411"},"modified":"2022-10-18T18:33:55","modified_gmt":"2022-10-18T10:33:55","slug":"nature-communications-%e7%bc%ba%e9%99%b7%e7%bb%93%e6%9e%84%e6%bc%94%e5%8c%96%e8%b5%8b%e4%ba%88gete%e9%ab%98%e7%83%ad%e7%94%b5%e6%80%a7%e8%83%bd","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=243411","title":{"rendered":"Nature Communications: \u7f3a\u9677\u7ed3\u6784\u6f14\u5316\u8d4b\u4e88GeTe\u9ad8\u70ed\u7535\u6027\u80fd"},"content":{"rendered":"<p><strong><b>\u4e00\u3001\u5f15\u8a00<\/b><\/strong><\/p>\n<p><strong><b>\u70ed\u7535\u8f6c\u6362\u6280\u672f<\/b><\/strong>\u80fd\u901a\u8fc7\u585e\u8d1d\u514b\u6548\u5e94\uff08Seebeck effect\uff09\u548c\u5e15\u5c14\u8d34\u6548\u5e94\uff08Peltier effect\uff09\u5b9e\u73b0\u70ed\u80fd\u4e0e\u7535\u80fd\u76f4\u63a5\u76f8\u4e92\u8f6c\u6362\u3002\u57fa\u4e8e\u8be5\u6280\u672f\u5236\u5907\u7684\u70ed\u7535\u5668\u4ef6\u5177\u6709\u7cfb\u7edf\u4f53\u79ef\u5c0f\u3001\u65e0\u8fd0\u52a8\u90e8\u4ef6\u3001\u65e0\u566a\u58f0\u3001\u65e0\u635f\u8017\u548c\u65e0\u6c61\u67d3\u7b49\u4f18\u70b9\uff0c\u5728\u6df1\u7a7a\u63a2\u6d4b\u3001\u56fa\u6001\u5236\u51b7\u548c\u7cbe\u786e\u63a7\u6e29\u7b49\u9886\u57df\u6709\u7740\u91cd\u8981\u7684\u5e94\u7528\u3002<\/p>\n<p>\u70ed\u7535\u8f6c\u6362\u6548\u7387\u4e3b\u8981\u7531\u6750\u6599\u7684\u65e0\u91cf\u7eb2\u70ed\u7535\u4f18\u503c\uff08<em><i>ZT<\/i><\/em>\u503c\uff09\u51b3\u5b9a\uff08\uff09\u3002\u4e3a\u4e86\u83b7\u5f97\u9ad8<em><i>ZT<\/i><\/em>\u503c\uff0c\u70ed\u7535\u6750\u6599\u9700\u8981\u540c\u65f6\u5177\u6709\u9ad8\u7684\u6e29\u5dee\u7535\u52a8\u52bf\uff08<em><i>S<\/i><\/em>\uff09\u548c\u7535\u5bfc\u7387\uff08<em><i>\u03c3<\/i><\/em>\uff09\u53ca\u4f4e\u70ed\u5bfc\u7387\uff08<em><i>\u03ba<\/i><\/em>\uff09\uff0c\u4f46\u4e09\u4e2a\u53c2\u6570\u7684\u534f\u540c\u8c03\u63a7\u56f0\u96be\u3002\u8fd1\u5e74\u6765\u7684\u5de5\u4f5c\u4e3b\u8981\u56f4\u7ed5\u63d0\u5347\u529f\u7387\u56e0\u5b50\uff08\uff09\u548c\u964d\u4f4e\u6676\u683c\u70ed\u5bfc\u7387\u5c55\u5f00\u3002<\/p>\n<p>\u5bf9\u4e8e\u78b2\u5316\u9517\uff08GeTe\uff09\u800c\u8a00\uff0c\u5982\u4f55\u89e3\u8026\u7535\u58f0\u8f93\u8fd0\u5173\u7cfb\uff0c\u83b7\u5f97\u66f4\u9ad8\u7684<em><i>Z<\/i><\/em><em><i>T<\/i><\/em>\u503c\u6210\u4e3a\u4e86\u7814\u7a76\u4eba\u5458\u8fd1\u5e74\u6765\u7684\u7814\u7a76\u91cd\u70b9\u3002GeTe\u542b\u6709\u8f83\u9ad8\u6d53\u5ea6\u7684\u672c\u5f81Ge\u7a7a\u4f4d\uff0c\u56e0\u800c\u8d21\u732e\u4e86\u5927\u91cf\u7684\u7a7a\u7a74\u8f7d\u6d41\u5b50\uff08~10<sup>21<\/sup>\u00a0cm<sup>-3<\/sup>\uff09\uff0c\u4f7f\u5f97\u6750\u6599\u504f\u79bb\u4e86\u6700\u4f18\u8f7d\u6d41\u5b50\u6d53\u5ea6\u8303\u56f4\u3002\u8fd1\u5e74\u6765\u7684\u5de5\u4f5c\u56f4\u7ed5\u4ee5\u63ba\u6742\u65bd\u4e3b\u5143\u7d20\uff08Bi\u3001Sb\u7b49\uff09\u6216\u662f\u5f15\u5165\u63d0\u5347Ge\u7a7a\u4f4d\u5f62\u6210\u80fd\u7684\u5143\u7d20\uff08Pb\u3001Se\u7b49\uff09\u53ef\u4ee5\u6709\u6548\u5730\u964d\u4f4e\u8f7d\u6d41\u5b50\u6d53\u5ea6\u7684\u540c\u65f6\u964d\u4f4e\u6676\u683c\u70ed\u5bfc\u7387\u5c55\u5f00\uff0c\u4f46\u8fd9\u4e9b\u5143\u7d20\u7684\u5f15\u5165\u4f1a\u963b\u788d\u8f7d\u6d41\u5b50\u7684\u8f93\u8fd0\uff0c\u4ece\u800c\u964d\u4f4e\u8f7d\u6d41\u5b50\u8fc1\u79fb\u7387\uff0c\u6076\u5316\u7535\u8f93\u8fd0\u7279\u6027\u3002\u53e6\u5916\u4e00\u65b9\u9762\uff0c\u5f15\u5165\u5171\u683c\u754c\u9762\uff08\u4f8b\u5982\u7b2c\u4e8c\u76f8\u7b49\uff09\u4ee5\u671f\u589e\u5f3a\u58f0\u5b50\u7684\u6563\u5c04\u800c\u4e0d\u5f71\u54cd\u8f7d\u6d41\u5b50\u7684\u8f93\u8fd0\u4e5f\u662f\u4e00\u79cd\u7b56\u7565\u3002\u4f46\u662f\u7b2c\u4e8c\u76f8\u4e0e\u57fa\u4f53\u7684\u9700\u8981\u76f8\u4e92\u9002\u914d\u7684\u6761\u4ef6\u6bd4\u8f83\u96be\u4ee5\u6ee1\u8db3\uff0c\u56e0\u800c\u5f88\u96be\u63a8\u5e7f\u5230\u5176\u4ed6\u6750\u6599\u3002\u7531\u4e8e\u9ad8\u7ef4\u7f3a\u9677\u5982\u4f4d\u9519\u3001\u5e73\u9762\u7a7a\u4f4d\u5c42\u7b49\u51e0\u4e4e\u5bf9\u8f7d\u6d41\u5b50\u8f93\u8fd0\u4e0d\u4ea7\u751f\u5f71\u54cd\uff0c\u4f46\u53ef\u4ee5\u8f83\u5f3a\u5730\u6563\u5c04\u4e2d\u9891\u58f0\u5b50\u3002\u56e0\u6b64\uff0c<strong><b>\u5408\u7406\u5229\u7528\u672c\u5f81G<\/b><\/strong><strong><b>e<\/b><\/strong><strong><b>\u7a7a\u4f4d\u6784\u5efa\u9ad8\u7ef4\u7f3a\u9677\u7ed3\u6784\u6210\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u96be\u9898\u7684\u65b0\u601d\u8def\u3002\u8be5\u7b56\u7565\u6709\u671b\u5728\u63d0\u9ad8\u58f0\u5b50\u6563\u5c04\u7684\u540c\u65f6\u964d\u4f4e\u8f7d\u6d41\u5b50\u6563\u5c04\uff0c\u5b9e\u73b0\u5bf9\u7535\u58f0\u8f93\u8fd0\u7684\u534f\u540c\u8c03\u63a7\uff0c\u4ece\u800c\u63d0\u5347\u70ed\u7535\u4f18\u503c<\/b><\/strong>\u3002<\/p>\n<p><strong><b>\u4e8c\u3001\u6210\u679c\u7b80\u4ecb<\/b><\/strong><\/p>\n<p>\u8fd1\u671f\uff0c\u6e05\u534e\u5927\u5b66\u6750\u6599\u5b66\u9662\u674e\u656c\u950b\u6559\u6388\u8bfe\u9898\u7ec4\u8054\u5408\u56fd\u5185\u5916\u591a\u4e2a\u7814\u7a76\u5c0f\u7ec4\uff0c\u5728GeTe\u7684\u7f3a\u9677\u7ed3\u6784\u8c03\u63a7\u4e0e\u63d0\u5347\u70ed\u7535\u6027\u80fd\u7814\u7a76\u65b9\u9762\u53d6\u5f97\u8fdb\u5c55\u3002\u8be5\u7814\u7a76\u901a\u8fc7\u8c03\u63a7\u5236\u5907\u5de5\u827a\u8bf1\u5bfc\u672c\u5f81Ge\u7a7a\u4f4d\u8fdb\u884c\u9ad8\u7ef4\u5b9a\u5411\u6f14\u5316\u3002\u5728\u78b2\u5316\u9517\u6750\u6599\u4e2d\u6784\u5efa\u4e86\u4ece\u539f\u5b50\u5c3a\u5ea6\u7684\u70b9\u7f3a\u9677\u3001\u7eb3\u7c73\u5c3a\u5ea6\u7684\u4f4d\u9519\u548c\u7535\u7574\u5230\u5fae\u89c2\u5c3a\u5ea6\u7684\u6676\u754c\u7684\u591a\u7ea7\u7ed3\u6784\uff0c\u663e\u8457\u964d\u4f4e\u4e86\u6676\u683c\u70ed\u5bfc\u7387\u3002\u6b64\u5916\uff0c\u9ad8\u7ef4\u7f3a\u9677\u7684\u6784\u5efa\u5f31\u5316\u4e86\u8f7d\u6d41\u5b50\u6563\u5c04\uff0c\u63d0\u5347\u4e86\u7535\u8f93\u8fd0\u6027\u80fd\uff0c\u6700\u7ec8\u5728648 K\u83b7\u5f97\u4e86\u5927\u4e8e2.3\u7684<em><i>Z<\/i><\/em><em><i>T<\/i><\/em>\u503c\uff0c\u5728300 K\u5230798 K\u7684\u8303\u56f4\u5185\u83b7\u5f97\u4e861.56\u7684\u5e73\u5747\u70ed\u7535\u4f18\u503c\uff08\u56fe1\uff09\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201c<strong><b>Evolution of defect structures leading to high <\/b><\/strong><strong><em><b><i>ZT <\/i><\/b><\/em><\/strong><strong><b>in GeTe-based thermoelectric materials<\/b><\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728\u671f\u520a<strong><em><i>Nature Communications<\/i><\/em><\/strong>\u4e0a\u3002<strong>\u6e05\u534e\u5927\u5b66\u6750\u6599\u5b66\u9662\u5728\u8bfb\u535a\u58eb\u751f\u6c5f\u5955\u6797\u4e3a\u8bba\u6587\u7b2c\u4e00\u4f5c\u8005\u3001\u674e\u656c\u950b\u6559\u6388\u548c\u82cf\u5f6c\u535a\u58eb\u540e\u3001\u65e5\u672c\u56fd\u7acb\u6750\u6599\u7814\u7a76\u6240\uff08<\/strong><strong>NIMS<\/strong><strong>\uff09<\/strong><strong>Mori<\/strong><strong>\u6559\u6388\u3001\u4e2d\u79d1\u9662\u7406\u5316\u6280\u672f\u7814\u7a76\u6240\u5468\u654f\u535a\u58eb\u4e3a\u5171\u540c\u901a\u8baf\u4f5c\u8005<\/strong>\u3002<\/p>\n<p><strong><b>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-243412\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72471-2.png\" alt=\"\" width=\"1558\" height=\"1268\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72471-2.png 1558w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72471-2-300x244.png 300w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72471-2-768x625.png 768w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72471-2-1024x833.png 1024w\" sizes=\"(max-width: 1558px) 100vw, 1558px\" \/>\u00a0\u00a0\u00a0\u00a0 <\/b><\/strong><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>1. <\/b><\/strong><strong><b>\u7f3a\u9677\u7ed3\u6784\u6f14\u5316\u5b9e\u73b0\u5bf9\u7535\u58f0\u8f93\u8fd0\u6027\u80fd\u7684\u534f\u540c\u8c03\u63a7\u3002<\/b><\/strong>(a) \u7f3a\u9677\u7ed3\u6784\u6f14\u5316\u8c03\u63a7\u7535\u58f0\u8f93\u8fd0\u7279\u6027\u793a\u610f\u56fe\uff1b(b) 873 K\u70e7\u7ed3\u6837\u54c1\u7684\u52a0\u6743\u8fc1\u79fb\u7387\u53ca\u52a0\u6743\u8fc1\u79fb\u7387\u548c\u6676\u683c\u70ed\u5bfc\u7387\u7684\u6bd4\u503c\u4e0e723 K\u70e7\u7ed3\u6837\u54c1\u7684\u5bf9\u6bd4\uff1b(c) 648 K\u6e29\u5ea6\u4e0b<em><i>Z<\/i><\/em><em><i>T<\/i><\/em>\u503c\u4e0e\u7b80\u7ea6\u8d39\u7c73\u80fd\u7ea7\u53ca\u4e0d\u540c\u54c1\u8d28\u56e0\u5b50\u7684\u5173\u7cfb<\/p>\n<p><strong><b>\u4e09\u3001\u56fe\u6587\u5bfc\u8bfb<\/b><\/strong><\/p>\n<p>\u4f20\u7edf\u89c2\u5ff5\u8ba4\u4e3a\u8fc7\u91cfGe\u7a7a\u4f4d\u80fd\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u963b\u788d\u8f7d\u6d41\u5b50\u7684\u8f93\u8fd0\uff0c\u56e0\u800c\u5236\u7ea6\u4e86GeTe\u4f53\u7cfb\u70ed\u7535\u6027\u80fd\u7684\u63d0\u5347\u3002\u672c\u7814\u7a76\u5bf9\u6b64\u8fdb\u884c\u4e86\u9a8c\u8bc1\uff08\u5982\u88681\u6240\u793a\uff09\u3002\u5bf9\u4e8eGe\u7a7a\u4f4d\u8fc7\u91cf\u7684Ge<sub>0.97<\/sub>Te\u6837\u54c1\uff0cHall\u8fc1\u79fb\u7387\uff08<em><i>\u03bc<\/i><\/em><sub>H<\/sub>\uff09\u548c\u52a0\u6743\u8fc1\u79fb\u7387\uff08<em><i>\u03bc<\/i><\/em><sub>w<\/sub>\uff09\u90fd\u6709\u5927\u5e45\u5ea6\u7684\u964d\u4f4e\uff0c\u5206\u522b\u8fbe\u5230\u4e8654.9 %\u548c26.1 %\uff0c\u800c\u6676\u683c\u70ed\u5bfc\u7387\uff08<em><i>\u03ba<\/i><\/em><sub>L<\/sub>\uff09\u51e0\u4e4e\u4e0d\u53d7\u5f71\u54cd\u3002\u901a\u8fc7\u63d0\u5347\u70e7\u7ed3\u6e29\u5ea6\u8c03\u63a7Ge\u7a7a\u4f4d\u72b6\u6001\u540e\uff0c\u8fc1\u79fb\u7387\u5448\u73b0\u5927\u5e45\u63d0\u5347\uff0c\u800c\u6676\u683c\u70ed\u5bfc\u7387\u5927\u5e45\u4e0b\u964d\uff0c\u663e\u8457\u63d0\u5347\u4e86<em>\u03bc<\/em><sub>w<\/sub>\/<em><i>\u03ba<\/i><\/em><sub>L<\/sub>\u6bd4\u503c\uff0c\u8bc1\u5b9e\u4e86Ge\u7a7a\u4f4d\u7684\u79ef\u6781\u8c03\u63a7\u6709\u5229\u4e8e\u63d0\u5347GeTe\u7684\u70ed\u7535\u6f5c\u529b\u3002<\/p>\n<p>\u88681\u00a0GeTe\u548cGe<sub>0.97<\/sub>Te\u6837\u54c1\u5728\u5ba4\u6e29\u7684\u8f93\u8fd0\u6027\u80fd<\/p>\n<p><strong><b><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-243413\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72472-2.png\" alt=\"\" width=\"1300\" height=\"459\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72472-2.png 1300w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72472-2-300x106.png 300w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72472-2-768x271.png 768w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72472-2-1024x362.png 1024w\" sizes=\"(max-width: 1300px) 100vw, 1300px\" \/><\/b><\/strong><\/p>\n<p>\u4f5c\u8005\u901a\u8fc7TEM\u8fdb\u4e00\u6b65\u7814\u7a76\u4e86Ge\u7a7a\u4f4d\u6f14\u5316\u524d\u540e\u6750\u6599\u5185\u90e8\u7684\u663e\u5fae\u7ec4\u7ec7\u7ed3\u6784\u3002\u7ed3\u679c\u8868\u660e\uff1a\u4f4e\u6e29\u70e7\u7ed3\u7684\u6837\u54c1\u53ea\u663e\u793a\u51fa\u4e86\u5c11\u8bb8\u4f4d\u9519\u548c\u7a7a\u4f4d\u73af\u4ee5\u53ca\u8f83\u5927\u5bbd\u5ea6\u7684\u7574\u7ed3\u6784\uff08\u7574\u58c1\u8f83\u5c11\uff09\uff1b\u9ad8\u6e29\u70e7\u7ed3\u7684\u6837\u54c1\u663e\u793a\u51fa\u4e86\u9ad8\u5bc6\u5ea6\u7684\u4f4d\u9519\u548c\u5bbd\u5ea6\u7a84\u5c0f\u7684\u7eb3\u7c73\u7574\u7ed3\u6784\uff08\u7574\u58c1\u8f83\u591a\uff09\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff1a\u4f5c\u8005\u8fd8\u89c2\u5bdf\u5230\u4e86\u7279\u6b8a\u7684\u4f4d\u9519\u7f51\u7edc\u7ed3\u6784\u3002\u4f4d\u9519\u548c\u5e73\u9762\u7a7a\u4f4d\u5c42\u5f15\u5165\u4e86\u5fae\u89c2\u5e94\u529b\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6563\u5c04\u58f0\u5b50\u3002\u8fd9\u6837\u7684\u5fae\u7ed3\u6784\u6e90\u4e8e\u9ad8\u6e29\u4e0bGe\u7a7a\u4f4d\u7684\u8fc1\u79fb\u4e0e\u6269\u6563\u3002\u901a\u8fc7DFT\u8ba1\u7b97\u53ef\u77e5GeTe\u4e2d\u7684\u4f4d\u9519\u5f62\u6210\u80fd\u4e3a-38 meV\/atom\uff0c\u7406\u8bba\u4e0a\u8bc1\u5b9e\u4e86\u53ef\u4ee5\u901a\u8fc7Ge\u7a7a\u4f4d\u7684\u8c03\u63a7\u5f62\u6210\u5927\u91cf\u7684\u4f4d\u9519\u548c\u4f4d\u9519\u7f51\u7edc\u3002<\/p>\n<p><strong><b><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-243414\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72473-1.png\" alt=\"\" width=\"1458\" height=\"1418\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72473-1.png 1458w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72473-1-300x292.png 300w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72473-1-768x747.png 768w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72473-1-1024x996.png 1024w\" sizes=\"(max-width: 1458px) 100vw, 1458px\" \/><\/b><\/strong><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>2. <\/b><\/strong><strong><b>\u7a7a\u4f4d\u8bf1\u5bfc\u7f3a\u9677\u7ed3\u6784\u6f14\u5316\u7684T<\/b><\/strong><strong><b>EM<\/b><\/strong><strong><b>\u8868\u5f81\u3002<\/b><\/strong>(a,b) 723 K\u548c873 K\u70e7\u7ed3\u6e29\u5ea6\u4e0b\u6837\u54c1\u7684\u5f62\u8c8c\u5bf9\u6bd4\uff1b(c)\u5728(b)\u56fe\u4e2d\u968f\u673a\u9009\u53d6\u4e00\u5904\u5c55\u793a\u51fa\u7684\u7eb3\u7c73\u7574\u7ed3\u6784\u7684\u9ad8\u5206\u8fa8TEM\u56fe\uff1b(d) \u4e00\u5904\u5728873 K\u70e7\u7ed3\u6837\u54c1\u4e2d\u89c2\u5bdf\u5230\u7684\u4f4d\u9519\u7f51\u7edc\uff1b(e-i) \u968f\u673a\u9009\u53d6\u7684\u4e00\u5904\u5e26\u6709\u4f4d\u9519\u548c\u7a7a\u4f4d\u5c42\u7f3a\u9677\u7684\u9ad8\u5206\u8fa8TEM\u53ca\u5176FFT\u3001IFFT\u548c\u5e94\u53d8\u5206\u5e03\u56fe\uff1b(j-m) \u4f4d\u9519\u7f51\u7edc\u7684\u9009\u53d6\u7535\u5b50\u884d\u5c04\u56fe\u53ca\u4e0d\u540c<strong><b>g<\/b><\/strong>\u77e2\u91cf\uff08\u884d\u5c04\u77e2\u91cf\uff09\u65b9\u5411\u4e0b\u7684\u5f62\u8c8c\u56fe\u3002<\/p>\n<p>\u901a\u8fc7\u6676\u683c\u70ed\u5bfc\u7387\u8ba1\u7b97\u53d1\u73b0\uff1a\u9ad8\u6e29\u70e7\u7ed3\u6837\u54c1\u7684\u6676\u683c\u70ed\u5bfc\u7387\u660e\u663e\u964d\u4f4e\uff08\u8f83\u4f4e\u6e29\u70e7\u7ed3\u7684\u6837\u54c1\u5e73\u5747\u964d\u4f4e~27%\uff09\u3002\u6700\u7ec8\uff0c Bi<sub>0.07<\/sub>Ge<sub>0.90<\/sub>Te-873\u6837\u54c1\u83b7\u5f97\u4e860.48 Wm<sup>-1<\/sup>K<sup>-1<\/sup>\u7684\u4f4e\u6676\u683c\u70ed\u5bfc\u7387\u3002\u57fa\u4e8eDebye-Callaway\u6a21\u578b\u5bf9\u4e0d\u540c\u6563\u5c04\u56e0\u7d20\u5bf9\u6676\u683c\u70ed\u5bfc\u7387\u7684\u8d21\u732e\u8fdb\u884c\u8ba1\u7b97\uff0c\u8bc1\u660e\u4e86\u7f3a\u9677\u7ed3\u6784\u5de5\u7a0b\u80fd\u6709\u6548\u964d\u4f4e\u4f53\u7cfb\u7684\u6676\u683c\u70ed\u5bfc\u7387\u3002<\/p>\n<p><strong><b>\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-243415\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72474-2.png\" alt=\"\" width=\"1250\" height=\"1018\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72474-2.png 1250w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72474-2-300x244.png 300w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72474-2-768x625.png 768w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72474-2-1024x834.png 1024w\" sizes=\"(max-width: 1250px) 100vw, 1250px\" \/><\/b><\/strong><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>3. <\/b><\/strong><strong><b>\u7f3a\u9677\u7ed3\u6784\u6f14\u5316\u5bf9\u70ed\u5bfc\u7387\u8c03\u63a7\u7684\u673a\u7406\u3002<\/b><\/strong>(a)\u4e0d\u540c\u6e29\u5ea6\u70e7\u7ed3\u6837\u54c1\u7684\u6676\u683c\u70ed\u5bfc\u7387\u968f\u6e29\u5ea6\u7684\u53d8\u5316\u56fe\uff1b(b) 873 K\u70e7\u7ed3\u6837\u54c1\u7684\u5ba4\u6e29\u6676\u683c\u70ed\u5bfc\u7387\u4e0e723 K\u70e7\u7ed3\u6837\u54c1\u7684\u5bf9\u6bd4\uff1b(c) Debye-Callaway\u6a21\u578b\u8ba1\u7b97\u5f97\u5230\u7684\u7f3a\u9677\u6f14\u5316\u5bf9\u6676\u683c\u70ed\u5bfc\u7387\u7684\u8d21\u732e\u4e0e\u5b9e\u6d4b\u6837\u54c1\u6676\u683c\u70ed\u5bfc\u7387\u5f88\u597d\u543b\u5408\uff1b(d)\u00a0Debye-Callaway\u6a21\u578b\u8ba1\u7b97\u7684\u4e0d\u540c\u7f3a\u9677\u5bf9\u58f0\u5b50\u6563\u5c04\u7684\u8d21\u732e\u3002<\/p>\n<p>\u53e6\u5916\u4e00\u65b9\u9762\uff0c\u7814\u7a76\u4eba\u5458\u5bf9\u7535\u8f93\u8fd0\u6027\u80fd\u8fdb\u884c\u4e86\u6d4b\u8bd5\u4e0e\u8868\u5f81\uff0c\u53d1\u73b0\u7f3a\u9677\u5de5\u7a0b\u8c03\u63a7Ge\u7a7a\u4f4d\u4e0d\u4ec5\u6ca1\u6709\u6076\u5316\u7535\u6027\u80fd\uff0c\u800c\u4e14\u5728\u4e0d\u5f71\u54cdSeebeck\u7cfb\u6570\u7684\u524d\u63d0\u4e0b\uff0c\u63d0\u9ad8\u4e86Hall\u8fc1\u79fb\u7387\u548c\u7535\u5bfc\u7387\uff0c\u5b9e\u73b0\u4e86\u7535\u5bfc\u7387\u4e0eSeebeck\u7cfb\u6570\u7684\u89e3\u8026\uff0c\u5927\u5e45\u63d0\u5347\u4e86\u4f53\u7cfb\u7684\u529f\u7387\u56e0\u5b50\u3002<\/p>\n<p><strong><b><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-243416\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72475-1.png\" alt=\"\" width=\"1667\" height=\"1285\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72475-1.png 1667w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72475-1-300x231.png 300w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72475-1-768x592.png 768w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72475-1-1024x789.png 1024w\" sizes=\"(max-width: 1667px) 100vw, 1667px\" \/><\/b><\/strong><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>4. <\/b><\/strong><strong><b>\u7f3a\u9677\u7ed3\u6784\u6f14\u5316\u5bf9\u7535\u8f93\u8fd0\u6027\u80fd\u7684\u5f71\u54cd\u3002<\/b><\/strong>(a,b)\u7535\u5bfc\u7387\u548cSeebeck\u7cfb\u6570\u968f\u6e29\u5ea6\u53d8\u5316\u7684\u8d8b\u52bf\u56fe\uff1b(c)\u5ba4\u6e29\u4e0bHall\u8f7d\u6d41\u5b50\u6d53\u5ea6\u548c\u8fc1\u79fb\u7387\u7684\u53d8\u5316\u60c5\u51b5\uff1b(d)\u529f\u7387\u56e0\u5b50\u968f\u6e29\u5ea6\u7684\u53d8\u5316\u53ca\u4e0e\u5176\u4ed6\u6587\u732e\u7684\u5bf9\u6bd4\u60c5\u51b5\u3002<\/p>\n<p>\u7531\u4e8e\u70ed\u5bfc\u7387\u548c\u7535\u5b66\u6027\u80fd\u7684\u89e3\u8026\u8c03\u63a7\uff0c\u6750\u6599\u7684<em><i>ZT<\/i><\/em>\u503c\u8fbe\u5230\u4e862.3\u4ee5\u4e0a\u7684\u6c34\u5e73\uff0c\u5e76\u4e14\u5728300 K-798 K\u7684\u6e29\u5ea6\u6bb5\u8303\u56f4\u5185\u83b7\u5f97\u4e861.56\u7684\u5e73\u5747<em><i>Z<\/i><\/em><em><i>T<\/i><\/em>\u503c\uff0c\u4f18\u4e8e\u5176\u4ed6\u65e0\u94c5\u63ba\u6742\u7684GeTe\u57fa\u70ed\u7535\u6750\u6599\u3002\u7814\u7a76\u4eba\u5458\u8fdb\u4e00\u6b65\u7814\u7a76\u4e86GeTe\u6750\u6599\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u6f5c\u529b\uff0c\u5236\u5907\u4e86\u5355\u81c2\u70ed\u7535\u5668\u4ef6\uff0c\u5e76\u5bf9\u5668\u4ef6\u7684\u8f6c\u5316\u6548\u7387\u8fdb\u884c\u4e86\u6d4b\u8bd5\uff0c\u83b7\u5f97\u4e86144 mW\u7684\u529f\u7387\u548c1.82 Wcm<sup>-2<\/sup>\u7684\u529f\u7387\u5bc6\u5ea6\uff0c\u4f18\u5316\u4fee\u6b63\u540e\u7684\u6700\u9ad8\u8f6c\u6362\u6548\u7387\u53ef\u8fbe11%\u3002<\/p>\n<p><strong><b><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-243417\" src=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72476.png\" alt=\"\" width=\"1250\" height=\"1043\" srcset=\"http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72476.png 1250w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72476-300x250.png 300w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72476-768x641.png 768w, http:\/\/www.cailiaoniu.com\/wp-content\/uploads\/2022\/10\/\u56fe\u72476-1024x854.png 1024w\" sizes=\"(max-width: 1250px) 100vw, 1250px\" \/><\/b><\/strong><\/p>\n<p><strong><b>\u56fe<\/b><\/strong><strong><b>5. <\/b><\/strong><strong><b>\u70ed\u7535\u4f18\u503c\u4e0e\u8f6c\u5316\u6548\u7387\u6d4b\u8bd5\u3002<\/b><\/strong>(a)\u4e0d\u540c\u70e7\u7ed3\u6e29\u5ea6\u4e0b<em><i>Z<\/i><\/em><em><i>T<\/i><\/em>\u503c\u968f\u6e29\u5ea6\u53d8\u5316\u60c5\u51b5\u7684\u5bf9\u6bd4\uff1b(b) 300-798 K\u4e0b\u5e73\u5747<em><i>Z<\/i><\/em><em><i>T<\/i><\/em>\u503c\u4e0e\u5176\u4ed6\u6587\u732e\u7684\u5bf9\u6bd4\u60c5\u51b5\uff1b(c,d) \u5668\u4ef6\u6d4b\u8bd5\u7684\u8f93\u51fa\u529f\u7387\u53ca\u6548\u7387\u3002<\/p>\n<p><strong><b>\u00a0<\/b><\/strong><\/p>\n<p><strong><b>\u56db\u3001\u5c0f\u7ed3<\/b><\/strong><\/p>\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0c\u8be5\u7814\u7a76\u5de5\u4f5c\u63d0\u51fa\u4e86\u4e00\u79cd\u7f3a\u9677\u7ed3\u6784\u5de5\u7a0b\u7684\u65b0\u601d\u8def\u3002\u901a\u8fc7\u9ad8\u6e29\u70e7\u7ed3\u5de5\u827a\u53ef\u79ef\u6781\u8c03\u63a7Ge\u7a7a\u4f4d\u5f62\u6001\uff0c\u8bf1\u5bfc\u9ad8\u7ef4\u7f3a\u9677\u7ed3\u6784\u7684\u5f62\u6210\u3002\u901a\u8fc7Debye\u2013Callaway\u6a21\u578b\u6a21\u62df\u8ba1\u7b97\u8bc1\u5b9e\u4e86\u9ad8\u7ef4\u7f3a\u9677\u7ed3\u6784\u7684\u5f62\u6210\u5bf9\u591a\u4e2a\u9891\u6bb5\uff08\u7279\u522b\u662f\u4e2d\u9891\u6bb5\uff09\u7684\u58f0\u5b50\u6563\u5c04\u5177\u6709\u589e\u5f3a\u4f5c\u7528\uff0c\u6781\u5927\u964d\u4f4e\u4e86\u6676\u683c\u70ed\u5bfc\u7387\u3002\u6b64\u5916\uff0c\u7531\u4e8e\u96f6\u7ef4\u7a7a\u4f4d\u6f14\u5316\u6210\u4e3a\u4e86\u9ad8\u7ef4\u7f3a\u9677\u7ed3\u6784\uff0c\u4f53\u7cfb\u7684\u8fc1\u79fb\u7387\u53cd\u800c\u6709\u6240\u63d0\u9ad8\uff0c\u5b9e\u73b0\u4e86\u7535\u5bfc\u7387\u548cSeebeck\u7cfb\u6570\u7684\u89e3\u8026\uff0c\u63d0\u5347\u4e86\u4f53\u7cfb\u7684\u529f\u7387\u56e0\u5b50\uff0c\u6700\u7ec8\u83b7\u5f97\u4e86\u8d85\u8fc72.3\u7684\u70ed\u7535\u4f18\u503c\u3002\u8fd9\u79cd\u7f3a\u9677\u7ed3\u6784\u8c03\u63a7\u7684\u7b56\u7565\u4e3a\u5176\u4ed6\u4f53\u7cfb\u70ed\u7535\u6750\u6599\u7684\u5236\u5907\u4e0e\u6027\u80fd\u4f18\u5316\u63d0\u4f9b\u4e86\u501f\u9274\u3002<\/p>\n<p>\u6587\u7ae0\u94fe\u63a5\uff1aJiang, Y., Dong, J., Zhuang, HL.\u00a0<em><i>et al.<\/i><\/em>\u00a0Evolution of defect structures leading to high\u00a0<em><i>ZT<\/i><\/em>\u00a0in GeTe-based thermoelectric materials.\u00a0<em><i>Nat. Commun.<\/i><\/em>\u00a0<strong><b>13<\/b><\/strong>, 6087 (2022). <a href=\"https:\/\/doi.org\/10.1038\/s41467-022-33774-z\">https:\/\/doi.org\/10.1038\/s41467-022-33774-z<\/a>.<\/p>\n<p>\u672c\u6587\u7531\u4f5c\u8005\u63d0\u4f9b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u5f15\u8a00 \u70ed\u7535\u8f6c\u6362\u6280\u672f\u80fd\u901a\u8fc7\u585e\u8d1d\u514b\u6548\u5e94\uff08Seebeck effect\uff09\u548c\u5e15\u5c14\u8d34\u6548\u5e94\uff08Peltier effect\uff09\u5b9e\u73b0\u70ed\u80fd\u4e0e\u7535\u80fd\u76f4\u63a5\u76f8\u4e92\u8f6c\u6362\u3002\u57fa\u4e8e\u8be5\u6280\u672f\u5236\u5907\u7684\u70ed&#8230;<\/p>\n","protected":false},"author":14360,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-243411","post","type-post","status-publish","format-standard","hentry","category-keji"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/243411"}],"collection":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/users\/14360"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=243411"}],"version-history":[{"count":1,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/243411\/revisions"}],"predecessor-version":[{"id":243418,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/243411\/revisions\/243418"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=243411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=243411"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=243411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}