{"id":74862,"date":"2017-04-08T06:30:14","date_gmt":"2017-04-07T22:30:14","guid":{"rendered":"\/\/m.iemloyee.com\/?p=74862"},"modified":"2017-04-07T16:51:53","modified_gmt":"2017-04-07T08:51:53","slug":"natl-sci-rev-%e7%bb%bc%e8%bf%b0%ef%bc%9a%e7%8e%af%e5%a2%83%e5%8f%8b%e5%a5%bd%e7%9a%84%e9%ab%98%e6%80%a7%e8%83%bd%e4%bd%8e%e6%88%90%e6%9c%acmg2si%e5%9f%ba%e7%83%ad%e7%94%b5%e6%9d%90%e6%96%99","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=74862","title":{"rendered":"Natl.Sci.Rev.\u7efc\u8ff0\uff1a\u73af\u5883\u53cb\u597d\u9ad8\u6027\u80fd\u4f4e\u6210\u672cMg2Si\u57fa\u70ed\u7535\u6750\u6599"},"content":{"rendered":"

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

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\u6700\u8fd1\uff0c\u6765\u81ea\u6b66\u6c49\u7406\u5de5\u5927\u5b66\u7684\u5f20\u6e05\u6770\u548c\u5510\u65b0\u5cf0\u3001\u7f8e\u56fd\u5bc6\u6b47\u6839\u5927\u5b66\u7684Ctirad Uher\uff08\u5171\u540c\u901a\u8baf\uff09<\/strong>\u7b49\u4eba\u64b0\u5199\u4e86\u9898\u4e3a\u201cEco-friendly high-performance silicide thermoelectric\u00a0materials\u201d<\/strong>\u7684\u7efc\u8ff0\uff0c\u76f8\u5173\u5185\u5bb9\u53d1\u8868\u5728\u4e862017\u5e742\u670824\u65e5\u51fa\u7248\u7684National Science Review<\/strong>\u4e0a\u3002\u6587\u4e2d\u7740\u91cd\u4ecb\u7ecd\u4e86\u901a\u8fc7\u80fd\u5e26\u7ed3\u6784\u4f18\u5316\u63d0\u9ad8Mg2<\/sub>Si\u57fa\u70ed\u7535\u6750\u6599\u70ed\u7535\u6027\u80fd\u7684\u65b9\u6cd5\uff0c\u5e76\u56de\u987e\u4e86\u8fd1\u671f\u8fd9\u7c7b\u6750\u6599\u7684\u53ef\u63a7\u5236\u5907\u3001\u7535-\u70ed\u8f93\u8fd0\u6027\u80fd\u8c03\u63a7\u3001\u673a\u68b0\u6027\u80fd\u548c\u70ed\u7a33\u5b9a\u6027\u4f18\u5316\u7b49\u7684\u6700\u65b0\u5b9e\u9a8c\u548c\u7406\u8bba\u8fdb\u5c55\u3002<\/p>\n

\"\"<\/p>\n

\u7efc\u8ff0\u603b\u89c8\u56fe<\/strong><\/p>\n

1. \u6982\u8ff0<\/strong><\/p>\n

Mg2<\/sub>Si1-x<\/em><\/sub>Snx<\/sub><\/em>\u56fa\u6eb6\u4f53\u4e2d\uff0c\u56fa\u6eb6\u5408\u91d1\u5316\u5f15\u5165\u4e86\u5927\u91cf\u70b9\u7f3a\u9677\u7ed3\u6784\u53ef\u5927\u5e45\u964d\u4f4e\u6676\u683c\u70ed\u5bfc\u7387\uff08k<\/em>L<\/sub>\uff09\uff0c\u53e6\u5916\uff0cSn\u542b\u91cf\u6539\u53d8\u53ef\u8c03\u8282\u5bfc\u5e26\u7ed3\u6784\u7684\u6536\u655b\u548c\u4f18\u5316\u6750\u6599\u7684\u7535\u6027\u80fd\uff1b\u5728Sn\u542b\u91cfx<\/em> = 0.7\u65f6\uff0c\u8f7b\u5bfc\u5e26\uff08LCB\uff09\u548c\u91cd\u5bfc\u5e26\uff08HCB\uff09\u53d1\u751f\u6709\u6548\u7b80\u5e76\u7684Mg2<\/sub>Si0.3<\/sub>Sn0.7<\/sub>\u5316\u5408\u7269\u83b7\u5f97\u6700\u4f18\u7684\u529f\u7387\u56e0\u5b50PF<\/em>\uff08PF<\/em> = a<\/em>2<\/sup>s<\/em>\uff09\u4ee5\u53ca\u5927\u5e45\u964d\u4f4e\u7684k<\/em>L<\/sub>\uff0c\u8fdb\u800c\u83b7\u5f97\u663e\u8457\u63d0\u9ad8\u7684\u70ed\u7535\u4f18\u503cZT<\/em>\u3002<\/p>\n

\u76ee\u524d\u5e7f\u6cdb\u7814\u7a76\u7684\u70ed\u7535\u6750\u6599\u4e3b\u8981\u6709PbTe\uff0cBi2<\/sub>Te3<\/sub>\u3001\u65b9\u94b4\u77ff\u7b49\u6750\u6599\uff0c\u4f46\u8fd9\u4e9b\u6750\u6599\u591a\u542b\u6709\u6bd2\u91cd\u91d1\u5c5e\u5143\u7d20\u3001\u7a00\u7f3a\u7684Te\u5143\u7d20\u7b49\uff0c\u6781\u5927\u963b\u788d\u4e86\u8fd9\u4e9b\u6750\u6599\u7684\u5927\u89c4\u6a21\u5546\u4e1a\u5e94\u7528\u3002\u76f8\u5bf9\u800c\u8a00\uff0cMg2<\/sub>Si\u57fa\u6750\u6599\u5177\u6709\u7ec4\u6210\u5143\u7d20\u5730\u58f3\u50a8\u91cf\u4e30\u5bcc\u3001\u73af\u5883\u53cb\u597d\u4ee5\u53ca\u5bc6\u5ea6\u4f4e\u7b49\u7279\u70b9\u548c\u4f18\u52bf\uff0c\u56e0\u800c\u5177\u6709\u975e\u5e38\u597d\u7684\u5e94\u7528\u524d\u666f\u3002Mg2<\/sub>Si\u57fa\u6750\u6599\u76ee\u524d\u5b58\u5728\u7684\u4e3b\u8981\u95ee\u9898\u5305\u62ec\u4ee5\u4e0b\u4e24\u4e2a\u65b9\u9762\uff1a\u4e00\u662f\u6750\u6599\u7684\u70ed\u7535\u6027\u80fd\u8fd8\u4e0d\u591f\u9ad8\uff0c\u4e8c\u662f\u4e0e\u70ed\u7535\u5668\u4ef6\u5e94\u7528\u76f8\u5173\u7684\u6750\u6599\u673a\u68b0\u6027\u80fd\u548c\u70ed\u7a33\u5b9a\u6027\u6709\u5f85\u8fdb\u4e00\u6b65\u4f18\u5316\u3002<\/p>\n

\u00a0\u9488\u5bf9Mg2<\/sub>Si\u57fa\u6750\u6599\u70ed\u7535\u6027\u80fd\u4e0d\u591f\u9ad8\u7684\u96be\u9898\uff0c\u76ee\u524d\u7684\u7814\u7a76\u901a\u8fc7\u80fd\u5e26\u7ed3\u6784\u5de5\u7a0b\u6765\u63d0\u9ad8\u6750\u6599\u7684\u529f\u7387\u56e0\u5b50\uff08PF= <\/em>a<\/em>2<\/sup><\/em>s<\/em>\uff09\u4ee5\u53ca\u901a\u8fc7\u56fa\u6eb6\u5408\u91d1\u5316\u624b\u6bb5\u6765\u964d\u4f4e\u6750\u6599\u7684\u6676\u683c\u70ed\u5bfc\u7387\uff08k<\/em>L<\/sub>\uff09\u3002\u901a\u8fc7\u83b7\u5f97Mg2<\/sub>Si1-x<\/em><\/sub>Snx<\/sub><\/em>\u56fa\u6eb6\u4f53\uff0c\u6750\u6599\u7684k<\/em>L<\/sub>\u5f97\u5230\u4e86\u663e\u8457\u7684\u964d\u4f4e\uff0c\u5728\u5408\u91d1\u5316\u58f0\u5b50\u6563\u5c04\u5f3a\u5ea6\u6700\u5927\u7684\u7ec4\u5206x <\/em>\u00bb 0.5\u5904\u5f97\u5230\u6700\u4f4e\u7684k<\/em>L<\/sub>\u3002\u968f\u7740Sn\u542b\u91cf\u7684\u63d0\u9ad8\uff0c\u8f7b\u91cd\u5bfc\u5e26\u53d1\u751f\u6536\u655b\uff0c\u4e14\u5728x<\/em> = 0.7\u65f6\uff0cMg2<\/sub>Si0.3<\/sub>Sn0.7<\/sub>\u56fa\u6eb6\u4f53\u4e2d\u8f7b\u91cd\u5bfc\u5e26\u53d1\u751f\u6709\u6548\u7b80\u5e76\uff0c\u6b64\u65f6\u6750\u6599\u7684Seebeck\u7cfb\u6570\u83b7\u5f97\u663e\u8457\u63d0\u9ad8\u800c\u7535\u5bfc\u7387\u5e76\u6ca1\u6709\u8870\u51cf\uff0c\u56e0\u800c\u6750\u6599\u7684PF<\/em>\u5f97\u5230\u4e86\u5927\u5e45\u63d0\u9ad8\u3002\u56e0\u800c\uff0cSn\u542b\u91cf\u8c03\u63a7\u53ef\u5b9e\u73b0\u56fa\u6eb6\u4f53\u4e2d\u7535-\u70ed\u8f93\u8fd0\u6027\u8d28\u7684\u90e8\u5206\u89e3\u8026\u4ee5\u53ca\u5171\u540c\u4f18\u5316\u3002\u80fd\u5e26\u7ed3\u6784\u968f\u7ec4\u5206\u53d1\u751f\u6536\u655b\u7684\u663e\u8457\u4f18\u52bf\u5728\u4e8ePF<\/em>\u548cZT<\/em>\u503c\u5728\u6574\u4e2a\u6d4b\u91cf\u6e29\u5ea6\u8303\u56f4\u5185\u4ee5\u53ca\u5728\u5f88\u5bbd\u7684\u8f7d\u6d41\u5b50\u6d53\u5ea6\u8303\u56f4\u5185\u90fd\u83b7\u5f97\u4e86\u663e\u8457\u4f18\u5316\uff0c\u8fd9\u76f8\u6bd4\u80fd\u5e26\u7ed3\u6784\u968f\u6e29\u5ea6\u53d1\u751f\u6536\u655b\u4ee5\u53ca\u5c40\u57df\u5171\u632f\u7535\u5b50\u6001\u6548\u5e94\u5177\u6709\u660e\u663e\u7684\u4f18\u52bf\u3002\u7ed3\u5408\u63ba\u6742\u4f18\u5316\u8f7d\u6d41\u5b50\u6d53\u5ea6\u548cSn\u542b\u91cf\u4f18\u5316\uff0c\u5bfc\u5e26\u7ed3\u6784\u53d1\u751f\u7b80\u5e76\u7684Mg2<\/sub>Si0.3<\/sub>Sn0.7<\/sub>\u7ec4\u5206\u7684\u6700\u9ad8ZT<\/em>\u503c\u548cZT<\/em>ave.<\/sub>\u503c\u5206\u522b\u4e3a1.3\u548c1.0\uff0c\u76f8\u6bd4\u53cc\u5bfc\u5e26\u6ca1\u6709\u53d1\u751f\u6536\u655b\u7684Mg2<\/sub>Si0.8<\/sub>Sn0.2<\/sub>\u7ec4\u5206\u63d0\u9ad8\u5e45\u5ea6\u5206\u522b\u4e3a~50%\u548c~100%\u3002\u5728\u4e09\u5143\u7684Mg2<\/sub>Ge1-x<\/em><\/sub>Snx<\/sub><\/em>\u56fa\u6eb6\u4f53\u548c\u56db\u5143\u7684Mg2<\/sub>Si1-x<\/em>–y<\/em><\/sub>Gex<\/sub><\/em>Sny<\/sub><\/em>\u4e2d\u4e5f\u53d1\u73b0\u4e86\u7c7b\u4f3c\u7684\u6027\u80fd\u4f18\u5316\u9014\u5f84\u3002<\/p>\n

\u70ed\u7535\u5668\u4ef6\u7684\u5f00\u53d1\u8981\u6c42\u6750\u6599\u5177\u6709\u4f18\u5f02\u7684\u673a\u68b0\u6027\u80fd\u548c\u826f\u597d\u7684\u70ed\u7a33\u5b9a\u6027\u3002\u9ad8\u97e7\u6027\u7684SiC\u548cCaSO4<\/sub>\u7684\u590d\u5408\u663e\u8457\u63d0\u9ad8\u4e86Mg2<\/sub>Si\u57fa\u6750\u6599\u7684\u673a\u68b0\u6027\u80fd\u3002\u5c11\u91cf\uff080.8 at%\uff09SiC\u7eb3\u7c73\u9897\u7c92\u548c\u7eb3\u7c73\u7ebf\u7684\u590d\u5408\u53ef\u4f7fMg2<\/sub>Si0.3<\/sub>Sn0.7<\/sub>\u56fa\u6eb6\u4f53\u7684\u65ad\u88c2\u97e7\u6027\u63d0\u9ad8\u7ea650%\uff0c\u540c\u65f6\u7531\u4e8eSiC\u5177\u6709\u6781\u9ad8\u7684\u5f3a\u5ea6\uff0c\u6750\u6599\u7684\u538b\u7f29\u5f3a\u5ea6\u4e5f\u63d0\u9ad8\u4e86\u8fd130%\uff0c\u63a5\u8fd1\u4e8e\u529b\u5b66\u6027\u80fd\u4f18\u5f02\u7684MnSi1.70+<\/sub>d<\/sub>\u6750\u6599\u7684\u6c34\u5e73\u3002BN\u6d82\u5c42\u4fdd\u62a4\u7684Mg2<\/sub>Si0.3<\/sub>Sn0.7<\/sub>\u56fa\u6eb6\u4f53\u8868\u73b0\u51fa\u826f\u597d\u7684\u70ed\u7a33\u5b9a\u6027\uff0c\u5728\u70ed\u7535\u5668\u4ef6\u4f7f\u7528\u6e29\u5ea6773K\u4e0b\u7a7a\u6c14\u4e2d\u9000\u706b720h\u540e\u6750\u6599\u7684\u70ed\u7535\u6027\u80fd\u6ca1\u6709\u8870\u51cf\uff0c\u8fd9\u5145\u5206\u8bf4\u660e\u4e86BN\u6d82\u5c42\u5bf9Mg2<\/sub>Si0.3<\/sub>Sn0.7<\/sub>\u56fa\u6eb6\u4f53\u7684\u6709\u6548\u4fdd\u62a4\u3002<\/p>\n

2.\u00a0Mg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u7684\u5236\u5907<\/strong><\/p>\n

Mg2<\/sub>IV(IV = Si, Ge \u548c Sn)\u57fa\u6750\u6599\u90fd\u662f\u53cd\u8424\u77f3\u7ed3\u6784\uff0c\u5176\u4e2dIV4+<\/sup>\u5360\u636e\u9762\u5fc3\u7acb\u65b9\u7684\u4f4d\u7f6e\uff0cMg2+<\/sup>\u586b\u5145\u7531IV4+<\/sup>\u5f62\u6210\u7684\u56db\u9762\u4f53\u3002\u7531\u4e8e\u76f8\u540c\u7684\u6676\u4f53\u7ed3\u6784\u548c\u76f8\u8fd1\u7684\u6676\u683c\u53c2\u6570\uff0c\u6240\u4ee5Mg2<\/sub>Si\u3001Mg2<\/sub>Ge\u548cMg2<\/sub>Sn\u53ef\u4ee5\u4e92\u76f8\u5f62\u6210\u56fa\u6eb6\u4f53\u3002\u8fde\u7eed\u7684\u56fa\u6eb6\u4f53\u5b58\u5728\u4e8eMg2<\/sub>Si1-x<\/sub>Gex<\/sub>\u7cfb\u7edf\u7684\u6240\u6709\u6210\u5206\u533a\u95f4\u5185\u3002\u7136\u800c\uff0c\u5728Mg2<\/sub>Si1-x<\/sub>Snx<\/sub>\u548cMg2<\/sub>Ge1-y<\/sub>Sny<\/sub>\u7cfb\u7edf\u4e2d\u56fa\u6eb6\u4f53\u5374\u5b58\u5728\u4e00\u4e2a\u9650\u5b9a\u7684\u7ec4\u6210\u8303\u56f4\u3002\u5728Mg2<\/sub>Si1-x<\/sub>Snx<\/sub>\u4f53\u7cfb\u4e2d\uff0c\u56fa\u6eb6\u4f53\u53ea\u4f1a\u5728x\uff1c0.4\u548cx\uff1e0.6\u7684\u8303\u56f4\u5185\u5b58\u5728\uff0c\u540c\u65f6\uff0c\u5728Mg2<\/sub>Ge1-y<\/sub>Sny<\/sub>\u4f53\u7cfb\u4e2d\uff0c\u56fa\u6eb6\u4f53\u5b58\u5728\u7684\u8303\u56f4\u88ab\u9650\u5b9a\u5728y\uff1c0.3\u548cy\uff1e0.8\u7684\u8303\u56f4\u5185\u3002\u56e0\u6b64\uff0cSn\u57fa\u56fa\u6eb6\u4f53\u7684\u5236\u5907\u662f\u76f8\u5f53\u56f0\u96be\u7684\uff0c\u8fd9\u5f3a\u70c8\u5730\u4f9d\u8d56\u4e8e\u7269\u8d28\u7684\u7ec4\u6210\u53ca\u6e29\u5ea6\u3002<\/p>\n

3. \u5229\u7528\u80fd\u5e26\u5de5\u7a0b\u589e\u5f3aMg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u7684\u6027\u80fd<\/strong><\/p>\n

\u6839\u636e\u5148\u524d\u7684\u6587\u732e\u62a5\u9053\uff0c\u4e8c\u5143Mg2<\/sub>IV\u5316\u5408\u7269\u62e5\u6709\u975e\u5e38\u76f8\u4f3c\u7684\u80fd\u5e26\u7ed3\u6784\u7279\u6027\uff1a\u5bfc\u5e26\u8fb9\u662f\u7531\u5177\u6709\u80fd\u5e26\u504f\u79fb\u4e3aE0<\/sub>\u7684\u91cd\u5bfc\u5e26\uff08CH<\/sub>\uff09\u548c\u8f7b\u5bfc\u5e26\uff08CL<\/sub>\uff09\u7ec4\u6210\u3002\u5728Mg2<\/sub>Si\u548cMg2<\/sub>Ge\u4e2d\uff0c\u5904\u4e8e\u504f\u4e0b\u4f4d\u7f6e\u7684CL<\/sub>\u5e26\u4e3b\u8981\u7531\u5177\u6709s-\u8f68\u9053\u7684Mg 3p\u6742\u5316\u8f68\u9053\u548cSi\/Ge\u7684d-eg<\/sub>\u8f68\u9053\u5f62\u6210\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0cMg2<\/sub>Sn\u4e2d\u504f\u4e0b\u4f4d\u7f6e\u7684CH<\/sub>\u5e26\u4e3b\u8981\u7531\u6742\u5316\u7684Mg\u76843p\u8f68\u9053\u548cSn\u7684d-t2g<\/sub>\u8f68\u9053\u5f62\u6210\u3002\u56e0\u6b64\uff0c\u53ef\u4ee5\u9009\u62e9Mg2<\/sub>IV\u56fa\u6eb6\u4f53\u5408\u9002\u7684\u7ec4\u6210\u5b9e\u73b0\u91cd\u5bfc\u5e26\uff08CH<\/sub>\uff09\u548c\u8f7b\u5bfc\u5e26\uff08CL<\/sub>\uff09\u7684\u6709\u6548\u91cd\u53e0\u3002<\/p>\n

\"\"<\/p>\n

\u56fe1\u00a0Mg2<\/sub>Si-Mg2<\/sub>Ge-Mg2<\/sub>Sn\u7cfb\u7edf\u4e2d\u7535\u5b50\u80fd\u5e26\u793a\u610f\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe2\u00a0Mg2<\/sub>Si1\u2013x<\/sub>Snx<\/sub>\u56fa\u6eb6\u4f53\u7684\u5bfc\u5e26\u4f4d\u7f6e\u3001\u8f7d\u6d41\u5b50\u8fc1\u79fb\u7387\u548c\u585e\u8d1d\u514b\u7cfb\u6570<\/strong><\/p>\n

4.\u00a0Mg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u7684\u8f7d\u6d41\u5b50\u63ba\u6742\u53ca\u6700\u4f73\u8f7d\u6d41\u5b50\u6d53\u5ea6<\/strong><\/p>\n

\u6839\u636e\u7ecf\u5178\u7684\u8f93\u8fd0\u7406\u8bba\uff0c\u7535\u5bfc\u7387\u7684\u589e\u52a0\u5fc5\u7136\u5bfc\u81f4\u585e\u8d1d\u514b\u7cfb\u6570\u7684\u51cf\u5c0f\u3002\u8003\u8651\u5230\u7531\u4e8e\u66f4\u5927\u7684\u7535\u5b50\u70ed\u5bfc\u7387\u4f1a\u4f7f\u7269\u8d28\u6574\u4f53\u7684\u70ed\u5bfc\u7387\u589e\u52a0\uff0c\u56e0\u6b64\u4f18\u5316\u70ed\u7535\u54c1\u8d28\u56e0\u6570\u9700\u8981\u8003\u8651\u6700\u4f73\u7684\u8f7d\u6d41\u5b50\u6d53\u5ea6\u3002\u7ed3\u679c\u8868\u660e\uff0c\u4f9d\u8d56\u5177\u6709\u7279\u5b9a\u70ed\u7535\u6027\u80fd\u7684\u6750\u6599\uff0c\u5176\u6709\u6548\u7684\u70ed\u7535\u8f6c\u5316\u8f7d\u6d41\u5b50\u6d53\u5ea6\u8303\u56f4\u662f1019<\/sup>-1021<\/sup>cm-3<\/sup>\u3002\u5927\u91cf\u7684\u7814\u7a76\u8bc1\u660e\uff0cn\u578bMg2<\/sub>Si1\u2013x<\/sub>Snx<\/sub>\u56fa\u6eb6\u4f53\u7684\u8f93\u8fd0\u6027\u8d28\u8868\u73b0\u4e3a\u5f53\u8f7d\u6d41\u5b50\u6d53\u5ea6\u4ece1018<\/sup>cm-3<\/sup>\u589e\u52a0\u52301020<\/sup>cm-3<\/sup>\u65f6\uff0c\u5176\u7535\u5bfc\u7387\u4f1a\u589e\u52a0\u4e24\u4e2a\u6570\u91cf\u7ea7\uff0c\u540c\u65f6\u585e\u8d1d\u514b\u7cfb\u6570\u53ea\u4f1a\u9002\u5f53\u51cf\u5c0f\uff0c\u800cPF\u4f1a\u589e\u592710\u500d\u4ee5\u4e0a\u3002<\/p>\n

\"\"<\/p>\n

\u56fe3 \u4e0d\u540c\u56fa\u6eb6\u4f53\u7684\u70ed\u7535\u6027\u8d28\u7814\u7a76<\/strong><\/p>\n

5. \u901a\u8fc7\u8c03\u63a7Mg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u7684\u6210\u5206\u548c\u5fae\u7ed3\u6784\u51cf\u5c0f\u03baL<\/sub><\/strong><\/p>\n

\u8981\u60f3\u4f7f\u70ed\u7535\u6750\u6599\u7684ZT\u503c\u8fbe\u5230\u8f83\u9ad8\u7684\u6570\u503c\uff0c\u964d\u4f4e\u6676\u683c\u70ed\u5bfc\u7387\u03baL<\/sub>\u548c\u589e\u5f3aPF\u540c\u6837\u91cd\u8981\u3002\u5728Mg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u4e2d\uff0c\u901a\u5e38\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\u51cf\u5c0f\u6676\u683c\u70ed\u5bfc\u7387\u03baL<\/sub>\uff1a\u8c03\u63a7\u56fa\u6eb6\u4f53\u7684\u7ec4\u6210\u548c\u63a7\u5236\u5176\u5fae\u7ed3\u6784\u3002<\/p>\n

\"\"<\/p>\n

\u56fe4\u00a0Mg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u4e2d\u03baL<\/sub>\u4e0e\u7ec4\u6210\u7684\u5173\u7cfb\u53ca\u6e29\u5ea6\u4f9d\u8d56\u7684\u03baL<\/sub><\/strong><\/p>\n

6. \u4f5c\u4e3a\u9ad8\u6548p\u578b\u6750\u6599\u7684\u9ad8\u9530\u7845\u5316\u7269\uff08HMS\uff09<\/strong><\/p>\n

\u9ad8\u6548\u70ed\u7535\u7ec4\u4ef6\u7684\u8fd0\u884cn\u578b\u548cp\u578b\u70ed\u7535\u5143\u7d20\u7684\u540c\u65f6\u5b58\u5728\u3002p\u578bHMS\u7531\u4e8e\u5176\u76f8\u5bf9\u8f83\u9ad8\u7684ZT\u503c\u548c\u66f4\u4e3a\u7a33\u5b9a\u7684\u673a\u68b0\u6027\u80fd\uff0c\u56e0\u6b64\u8981\u4f18\u4e8ep\u578bMg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u3002\u9274\u4e8e\u6b64\uff0cp\u578bHMS\u4e0e\u9ad8\u6548n\u578bMg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u7684\u7ed3\u5408\u53ef\u4ee5\u7ec4\u6210\u70ed\u7535\u7ec4\u4ef6\u3002<\/p>\n

7. Mg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u63d0\u9ad8\u7684\u673a\u68b0\u6027\u80fd\u548c\u70ed\u7a33\u5b9a\u6027\u4e0eHMS\u7684\u5173\u7cfb<\/strong><\/p>\n

Mg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u5316\u5408\u7269\u6613\u788e\uff0c\u56e0\u6b64\u5728\u70e7\u7ed3\u3001\u5207\u5272\u548c\u629b\u5149\u7684\u8fc7\u7a0b\u4e2d\u9700\u8981\u5341\u5206\u5c0f\u5fc3\u5730\u64cd\u4f5c\u4ee5\u907f\u514d\u5757\u4f53\u952d\u4e2d\u7684\u88c2\u7eb9\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0cHMS\u4f5c\u4e3a\u6700\u6709\u524d\u666f\u7684p\u578b\u7845\u5316\u7269\u5177\u6709\u4f18\u5f02\u7684\u673a\u68b0\u6027\u80fd\u3002\u7531\u4e8eMg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u5316\u5408\u7269\u5b71\u5f31\u7684\u673a\u68b0\u6027\u80fd\uff0c\u56e0\u6b64\u5229\u7528\u5176\u5236\u4f5c\u70ed\u7535\u5668\u4ef6\u6781\u5177\u6311\u6218\u3002\u73b0\u4eca\u63d0\u9ad8Mg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u7684\u65b9\u6cd5\u4e3b\u8981\u662f\u5c06SiC\u6dfb\u52a0\u5242\u5f15\u5165\u5176\u7f51\u7edc\u4e2d\u3002<\/p>\n

\"\"<\/p>\n

\u56fe5 \u5177\u6709\u5206\u6563SiC\u7684Mg2.16<\/sub>(Si0.3<\/sub>Sn0.7<\/sub>)0.98<\/sub>Sb0.02<\/sub>\u6750\u6599\u7684\u65ad\u88c2\u97e7\u6027\u548c\u88c2\u7eb9\u6269\u5c55<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe6\u00a0Mg2.16<\/sub>(Si0.3<\/sub>Sn0.7<\/sub>)0.98<\/sub>Sb0.02<\/sub>\u6e29\u5ea6\u4f9d\u8d56\u7684\u7535\u5bfc\u7387\u3001\u585e\u8d1d\u514b\u7cfb\u6570\u3001\u70ed\u5bfc\u7387\u548cZT\u503c<\/strong><\/p>\n

\u3010\u603b\u7ed3\u4e0e\u5c55\u671b\u3011<\/strong><\/p>\n

\u00a0\u672c\u6587\u5bf9n\u578bMg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u548cp\u578bHMS\u7684\u6700\u65b0\u7814\u7a76\u8fdb\u5c55\u8fdb\u884c\u4e86\u8be6\u7ec6\u5730\u53d9\u8ff0\uff0c\u5e76\u5bf9\u5176\u5408\u6210\u3001\u80fd\u5e26\u8c03\u63a7\u3001\u8f7d\u6d41\u5b50\u6d53\u5ea6\u4f18\u5316\u3001\u03baL<\/sub>\u503c\u7684\u51cf\u5c0f\u3001\u673a\u68b0\u6027\u80fd\u548c\u7ed3\u6784\u70ed\u7a33\u5b9a\u6027\u6240\u9762\u4e34\u7684\u6311\u6218\u8fdb\u884c\u4e86\u9610\u8ff0\uff0c\u73b0\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n

\uff081\uff09Mg2<\/sub>IV\u57fa\u56fa\u6eb6\u4f53\u5236\u5907\u7684\u56f0\u96be\u4e3b\u8981\u662f\u7531\u4e8e\u9ad8\u6e29\u4e0b\u5176\u8f83\u9ad8\u7684\u84b8\u6c14\u538b\u548cMg\u7684\u6c27\u5316\uff1b<\/p>\n

\uff082\uff09Mg2<\/sub>IV\u57fa\u6750\u6599\u5bfc\u5e26\u6536\u655b\u4f1a\u6781\u5927\u589e\u52a0\u6001\u5bc6\u5ea6\u7684\u6709\u6548\u8d28\u91cf\uff0c\u8fd9\u4f1a\u589e\u5f3a\u585e\u8d1d\u514b\u7cfb\u6570\u800c\u4e0d\u4f1a\u5f71\u54cd\u5176\u7535\u5bfc\u7387\uff1b<\/p>\n

\uff083\uff09Sb\u548cBi\u90fd\u662fMg2<\/sub>IV\u57fa\u6750\u6599\u4e2d\u6700\u597d\u7684n\u578b\u63ba\u6742\u5242\uff0c\u540c\u65f6\u8fc7\u91cf\u7684Mg\u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u7535\u5b50\u4f9b\u4f53\uff1b<\/p>\n

\uff084\uff09\u6210\u5206\u7684\u53d8\u5316\u548c\u7eb3\u7c73\u7ed3\u6784\u7684\u6539\u53d8\u534f\u540c\u5f71\u54cd\u7740\u6750\u6599\u7684\u6676\u683c\u70ed\u5bfc\u7387\uff1b<\/p>\n

\uff085\uff09\u9002\u91cfSiC\u7684\u589e\u52a0\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8Mg2<\/sub>IV\u57fa\u6750\u6599\u7684\u673a\u68b0\u6027\u80fd\u3002<\/p>\n

\u867d\u7136\u5728Mg2<\/sub>IV\u57fa\u6750\u6599\u7684\u7814\u7a76\u4e2d\u8fd8\u9762\u4e34\u7740\u5f88\u591a\u56f0\u96be\u7684\u672a\u77e5\u7684\u65b9\u5411\uff0c\u4f46\u662f\u76f8\u4fe1\u968f\u7740\u79d1\u7814\u5de5\u4f5c\u8005\u7684\u5927\u529b\u534f\u4f5c\u4e00\u5b9a\u4f1a\u5c06Mg2<\/sub>IV\u57fa\u6750\u6599\u7684\u7814\u7a76\u63d0\u5347\u5230\u65b0\u7684\u9ad8\u5ea6\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1a<\/strong>Eco-friendly high-performance silicide thermoelectric\u00a0materials<\/a>\uff08Natl.Sci.Rev.\uff0c2017\uff0cDOI:10.1093\/nsr\/nwx011\uff09<\/p>\n

National\u00a0Science\u00a0Review\u4ecb\u7ecd<\/span><\/strong><\/p>\n

National Science Review\u4e3a\u4e2d\u56fd\u7b2c\u4e00\u4efd\u82f1\u6587\u7248\u7efc\u8ff0\u6027\u5b66\u672f\u671f\u520a\uff0c\u5b9a\u4f4d\u4e8e\u4e00\u4efd\u5177\u6709\u6218\u7565\u6027\u3001\u5bfc\u5411\u6027\u7684\u7efc\u8ff0\u671f\u520a\uff0c\u81f4\u529b\u4e8e\u5168\u9762\u5c55\u793a\u4e2d\u56fd\u5404\u79d1\u5b66\u9886\u57df\u7684\u4ee3\u8868\u6027\u7814\u7a76\u6210\u679c\uff0c\u8ffd\u8e2a\u62a5\u9053\u91cd\u5927\u79d1\u6280\u4e8b\u4ef6\uff0c\u6df1\u5ea6\u89e3\u8bfb\u70ed\u70b9\u7814\u7a76\u548c\u91cd\u8981\u79d1\u6280\u653f\u7b56\u7b49\u3002\u4e8e2014\u5e743\u6708\u6b63\u5f0f\u51fa\u7248\uff0c2016\u5e74NSR\u521b\u520a\u4ee5\u6765\u7684\u9996\u4e2aSCI\u5f71\u54cd\u56e0\u5b50\u8fbe\u52308.0\uff0c\u4f4d\u4e8e63\u79cd\u591a\u5b66\u79d1\u7efc\u5408\u7c7b\u671f\u520a\u7684\u7b2c5\u540d\u3002\u672c\u520a\u53d1\u8868\u7684\u6240\u6709\u8bba\u6587\u5168\u6587\u53ef\u4ee5\u5728\u7ebf\u514d\u8d39\u9605\u8bfb\u548c\u4e0b\u8f7d\u3002<\/p>\n

\u672c\u6587\u7531National Science Review\u7f16\u8f91\u90e8\u6295\u7a3f\uff0c\u6750\u6599\u4eba\u7535\u5b50\u7535\u5de5\u5b66\u672f\u7ec4\u5927\u57ce\u5c0f\u7231\u6574\u7406\u7f16\u8f91\u3002\u6750\u6599\u4eba\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u8fd9\u91cc\u6c47\u96c6\u4e86\u5404\u5927\u9ad8\u6821\u7855\u535a\u751f\u3001\u4e00\u7ebf\u79d1\u7814\u4eba\u5458\u4ee5\u53ca\u884c\u4e1a\u4ece\u4e1a\u8005\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c\u70b9\u6211\u52a0\u5165\u7f16\u8f91\u90e8<\/a><\/span>\u3002<\/p>\n

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