{"id":97687,"date":"2017-08-25T06:30:13","date_gmt":"2017-08-24T22:30:13","guid":{"rendered":"\/\/m.iemloyee.com\/?p=97687"},"modified":"2017-08-22T10:14:08","modified_gmt":"2017-08-22T02:14:08","slug":"adv-mater-%ef%bc%9a%e4%ba%8c%e7%bb%b4%e9%87%91%e5%b1%9e%e5%8d%95%e6%99%b6%e7%9a%84%e8%8c%83%e5%be%b7%e7%93%a6%e5%b0%94%e6%96%af%e5%a4%96%e5%bb%b6%e7%94%9f%e9%95%bf%e6%96%b9%e6%b3%95%e5%8f%8a%e5%85%b6","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=97687","title":{"rendered":"Adv.Mater.\uff1a\u4e8c\u7ef4\u91d1\u5c5e\u5355\u6676\u7684\u8303\u5fb7\u74e6\u5c14\u65af\u5916\u5ef6\u751f\u957f\u65b9\u6cd5\u53ca\u5176\u9ad8\u7535\u5bfc\u7387\u7814\u7a76"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u4e8c\u7ef4\u91d1\u5c5e\u7684\u8fc7\u6e21\u91d1\u5c5e\u786b\u5316\u7269(MTMD)\u5df2\u7ecf\u4f5c\u4e3a\u4e00\u79cd\u65b0\u5174\u7684\u6750\u6599\u51fa\u73b0\u5728\u7535\u5b50\u76f8\u4f4d\u5de5\u7a0b\u3001\u4e8c\u7ef4\u8d85\u5bfc\u3001\u78c1\u4f53\u7b49\u65b0\u578b\u7684\u7535\u5b50\u5e94\u7528\u4e2d\u3002\u867d\u7136\u80fd\u591f\u4f7f\u7528\u673a\u68b0\u5265\u79bb\u6cd5\u6765\u83b7\u53d6\u8fd9\u6837\u7684\u4e8c\u7ef4\u91d1\u5c5e\u7247\uff0c\u4f46\u662f\u6210\u6279\u751f\u4ea7\u4ecd\u7136\u9762\u4e34\u7740\u6311\u6218\u3002\u6211\u4eec\u9700\u8981\u5bfb\u627e\u4e00\u79cd\u65b9\u6cd5\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u5317\u4eac\u65f6\u95f48\u670814\u65e5\uff0c\u5317\u4eac\u5927\u5b66\u4f18\u79c0\u9752\u5e74\u3001\u7279\u8058\u7814\u7a76\u5458\u5f20\u8273\u950b\uff08\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u5728Advanced Materials<\/strong> \u7f51\u7ad9\u4e0a\u5728\u7ebf\u53d1\u8868\u4e86\u4e00\u7bc7\u6587\u7ae0\uff0c\u9898\u76ee\u4e3a\u201cVan der Waals Epitaxial Growth of 2D Metallic Vanadium Diselenide Single Crystals and their Extra-High Electrical Conductivity\u201d<\/strong>\u3002\u5728\u672c\u6587\u4e2d\uff0c\u7814\u7a76\u4eba\u5458\u901a\u8fc7\u201c\u4e00\u6b65\u201d\u5316\u5b66\u6c14\u76f8\u6c89\u79ef\u6cd5\u6765\u7814\u7a76\u5355\u6676\u30011T \u76f8\u4f4d\u4ee5\u53ca\u5728\u539f\u5b50\u7ea7\u5e73\u6574\u4e91\u6bcd\u886c\u5e95\u4e0a\u7684\u51e0\u5c42VSe2<\/sub>\u7684\u91d1\u5c5e\u7eb3\u7c73\u7247\u3002VSe2<\/sub>\u7eb3\u7c73\u7247\u7684\u539a\u5ea6\u53ef\u4ee5\u7cbe\u786e\u5730\u4ece\u51e0\u7eb3\u7c73\u8c03\u8282\u5230\u51e0\u5206\u4e4b\u4e00\u7eb3\u7c73\u3002\u66f4\u91cd\u8981\u7684\u662f\uff0c\u4e8c\u7ef4\u7684VSe2<\/sub>\u5355\u6676\u5177\u6709\u6781\u597d\u7684\u91d1\u5c5e\u7279\u6027\uff0c\u5bfc\u7535\u7387\u9ad8\u8fbe106<\/sup>Sm-1<\/sup>\uff0c\u6bd4\u5176\u4ed6\u4e8c\u7ef4\u5bfc\u7535\u6750\u6599\u9ad8\u51fa1\u20144\u4e2a\u767e\u5206\u70b9\u3002\u6b64\u5916\u901a\u8fc7\u4f4e\u6e29\u8f93\u8fd0\u6d4b\u91cf\u8bc1\u5b9e\u4e86\u7535\u8377\u5bc6\u5ea6\u6ce2\u76f8\u53d8\u4e0e\u539a\u5ea6\u76f8\u5173\uff0c\u63ed\u793a\u4e86\u5408\u6210\u7684\u4e8c\u7ef4\u91d1\u5c5e1T-VSe2<\/sub>\u7eb3\u7c73\u7247\u53ef\u4ee5\u4f5c\u4e3a\u4f18\u826f\u7684\u7814\u7a76\u5e73\u53f0\u6765\u63a2\u6d4b\u65b0\u578b\u7684\u591a\u4f53\u5f62\u6001\u3002\u8fd9\u4e9b\u7ed3\u679c\u4e3a\u7eb3\u7c73\u7ea7\u539a\u5ea6\u7684\u4e8c\u7ef4MTMDs\u6676\u4f53\u5408\u6210\u53ca\u6027\u80fd\u7814\u7a76\u5f00\u8f9f\u4e86\u4e00\u6761\u65b0\u7684\u9053\u8def\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe1\uff1a\u8fd0\u7528\u5927\u6c14\u538bCVD\u65b9\u6cd5\u5728\u4e91\u6bcd\u4e0a\u76f4\u63a5\u5408\u6210VSe2<\/sub>\u591a\u8fb9\u5f62<\/strong><\/p>\n a.\u5de6\u56fe\u662f\u8303\u5fb7\u74e6\u5c14\u65af\u5916\u5ef6\u751f\u957f\u8def\u5f84\u539f\u7406\u56fe\uff1b\u53f3\u56fe\u662f\u4e91\u6bcd\u4e0a\u4e24\u4e2a\u65cb\u8f6c\u4e8660\u00b0\u7684VSe2<\/sub>\u6676\u683c\u539f\u7406\u89c6\u56fe\uff1b<\/p>\n b.Se 3d\u548cV 2p\u8f68\u9053\u7684\u9ad8\u5206\u8fa8XPS\u56fe\u50cf\u8868\u5f81\uff1b<\/p>\n c.\u5728TEM\u7f51\u683c\u4e0a\uff0c\u8f6c\u79fb\u6837\u54c1\u7684EDS\u5143\u7d20\u5206\u6790\uff1b<\/p>\n d,e.\u5bf9\u4e8eVSe2<\/sub>\u4e09\u89d2\u7eb3\u7c73\u7247\u4e2d\u4e00\u89d2\uff0cSe \u548cV\u7684 EDS\u56fe\u50cf\u8868\u5f81\uff1b<\/p>\n f.\u5728\u4e91\u6bcd\u886c\u5e95\u4e0a\uff0c\u83b7\u5f97\u4f20\u7edf\u7684VSe2<\/sub>\u4e09\u89d2\u548c\u516d\u89d2\u5f62\u6001\u7684OM\u56fe\u50cf(400 sccm Ar \u548c2 sccm H2<\/sub>\u4f5c\u4e3a\u8fd0\u8f93\u6c14\u4f53\uff0c\u751f\u957f\u65f6\u95f4\u4e3a2\u5206\u949f)\uff1b<\/p>\n g. \u4e91\u6bcd\u4e0a\u7684VSe2<\/sub>\u7eb3\u7c73\u7247\u7684\u53d6\u5411\u5206\u5e03\u76f4\u65b9\u56fe\uff1b<\/p>\n h.\u5927\u7ea64.9nm\u539a\u5ea6\u7684\u8d85\u8584VSe2<\/sub>\u7eb3\u7c73\u7247\u7684AFM\u56fe\u50cf\u548c\u76f8\u5e94\u7684\u9ad8\u5ea6\u5256\u9762\u56fe\uff1b<\/p>\n i. \u4ee5VSe2<\/sub>\u7eb3\u7c73\u7247\u7684\u5e73\u5747\u539a\u5ea6\u7ed8\u5236\u7684Ar\u6d41\u91cf\u51fd\u6570\u56fe\u3002\u63d2\u56fe\u4e3a\u5728300nmSiO2<\/sub>\u6216Si\u4e0a\u8f6c\u79fb\u7684VSe2<\/sub>\u7eb3\u7c73\u7247\u7684\u5149\u5b66\u56fe\u50cf\u3002\u5f53\u964d\u4f4e\u5176\u539a\u5ea6\u65f6\uff0c\u663e\u793a\u4ece\u9ec4\u8272\u5230\u7ea2\u8272\u7684\u5bf9\u6bd4\u5ea6\u6f14\u53d8\uff1b<\/p>\n \u56fe2\uff1aVSe2<\/sub>\u591a\u8fb9\u4f53\u7684\u76f8\u4f4d\u7ed3\u6784\u9274\u5b9a\u53ca\u5176\u7a33\u5b9a\u6027\u8bd5\u9a8c<\/strong><\/p>\n a.\u4e91\u6bcd\u4e0a\u539f\u751f\u7684\u516d\u89d2(\u84dd\u7ebf)\u548c\u4e09\u89d2\u5f62(\u9ed1\u7ebf)VSe2<\/sub>\u7eb3\u7c73\u7247\u7684\u62c9\u66fc\u5149\u8c31\u8868\u5f81\uff1b<\/p>\n b,c.\u57fa\u4e8eA1g<\/sub>\u6a21\u5f0f\u7684\u5f3a\u5ea6\uff0c\u4e24\u56fe\u5206\u522b\u4e3a\u4e91\u6bcd\u4e0a\u539f\u751f\u7684\u516d\u89d2\u5f62\u548c\u4e09\u89d2\u5f62VSe2<\/sub>\u7eb3\u7c73\u7247\u76842D\u62c9\u66fc\u5149\u8c31\u8868\u5f81\u3002\u63d2\u56fe\u4e3a\u5bf9\u5e94\u7684VSe2<\/sub>\u7eb3\u7c73\u7247\u7684OM\u56fe\u50cf\uff1b<\/p>\n d.\u8f6c\u79fb\u5230\u975e\u6676SiO2<\/sub>\u886c\u5e95\u4e0a\u7684VSe2<\/sub>\u7eb3\u7c73\u7247\u7684XRD\u56fe\u50cf\uff1b<\/p>\n e.\u5728\u6e7f\u5ea6\u4e3a13-20%(24\u2103)\u7684\u7a7a\u6c14\u4e2d\u653e\u7f6e10\u4e2a\u6708\u4e4b\u524d\u548c\u4ee5\u540e\uff0cVSe2<\/sub>\u7eb3\u7c73\u7247\u7684\u62c9\u66fc\u5149\u8c31\u548cOM\u56fe\u50cf(\u63d2\u56fe)\u3002<\/p>\n \u56fe3\uff1aCVD\u884d\u751f\u7684VSe2<\/sub>\u7eb3\u7c73\u7247\u5355\u6676\u7684TEM\u56fe\u50cf\u8868\u5f81<\/strong><\/p>\n a,b.\u8d85\u8584\u4e09\u89d2\u5f62\u548c\u516d\u89d2\u5f62VSe2<\/sub>\u7eb3\u7c73\u7247\u7684\u4f4e\u653e\u5927\u7387TEM\u56fe\u50cf\u8868\u5f81\uff1b<\/p>\n c,d.\u4ecea\u56fe\uff08\u84dd\u7ebf\uff09\u548cb\u56fe\uff08\u7ea2\u7ebf\uff09\u4e2d\u4ee5\u6570\u5b571\u20146\u6807\u8bb0\u7684\u533a\u57df\u4e2d\u5f97\u5230\u7684SAED\u6a21\u578b\u3002\u5728\u6a21\u578b\u4e2d\u6807\u8bb0\u4e86\u5173\u4e8e\u6c34\u5e73\u7ebf\u7684\u865a\u7ebf\u7684\u89d2\u5ea6\uff1b<\/p>\n e,f.\u4e09\u89d2\u5f62\u548c\u516d\u89d2\u5f62\u5355\u6676\u7684\u4fef\u89c6\u7ed3\u6784\u56fe\uff1b<\/p>\n g.\u4e24\u4e2a\u5408\u5e76\u7684VSe2<\/sub>\u57df\u7684TEM\u56fe\u50cf\u8868\u5f81(\u5f7c\u6b64\u4e4b\u95f4\u53ea\u662f\u8f7b\u5fae\u7684\u65cb\u8f6c)\uff1b<\/p>\n h,i.\u4ece\u4e24\u4e2aVSe2<\/sub>\u57df\u9009\u53d6\u7684\u7ea2\u70b9\u548c\u84dd\u70b9\u4f4d\u7f6e\u4e2d\u5f97\u5230\u7684\u76f8\u5e94\u7684SAED\u6a21\u578b\u3002<\/p>\n \u56fe4\uff1a\u539f\u5b50\u7ea7\u5927\u5c0f\u76841T-VSe2<\/sub>\u5355\u6676\u7ed3\u6784\u7684TEM\u56fe\u50cf\u8868\u5f81<\/strong><\/p>\n a. 1T-VSe2<\/sub>\u7684\u4e09\u7ef4\u539f\u7406\u56fe\uff1b<\/p>\n b. VSe2<\/sub>\u6676\u4f53\u6298\u8fb9\u7684\u653e\u5927TEM\u56fe\u50cf\u8868\u5f81\u3002\u63d2\u56fe\u4e3aVSe2<\/sub>\u6676\u4f53\u6298\u8fb9\u7684\u4f4e\u653e\u5927\u7387TEM\u56fe\u50cf(\u7528\u7ea2\u8272\u6b63\u65b9\u5f62\u6807\u8bb0)\uff1b<\/p>\n c.b\u56fe\u4e2d\u767d\u865a\u7ebf\u7bad\u5934\u7684\u5f3a\u5ea6\u8c31\u7ebf\u8f6e\u5ed3(\u84dd\u7ebf)\u548c\u6241\u5e73\u7ebf(\u7ea2\u7ebf)\u3002\u63d2\u56fe\u4e3a\u6241\u5e73\u7ebf\u7684\u653e\u5927\u56fe\uff1b<\/p>\n d. VSe2<\/sub>\u7eb3\u7c73\u7247\u7684\u539f\u5b50\u5206\u8fa8\u7387\u7684HAADF-STEM\uff0c\u5176\u5f62\u72b6\u5728\u63d2\u56fe\u4e2d\u663e\u793a\uff1b<\/p>\n e.d\u56fe\u4e2d\u7528\u6b63\u65b9\u5f62\u7684\u767d\u865a\u7ebf\u7a81\u51fa\u533a\u57df\uff0c\u5373\u6839\u636eHAADF\u5f3a\u5ea6\u7f16\u7801\u7684\u4f2a\u8272\u56fe\u50cf\u533a\u57df\u7684\u653e\u5927\u56fe\u3002Se\u548cV\u7684\u4f4d\u7f6e\u5206\u522b\u7528\u9ec4\u8272\u548c\u7eff\u8272\u6807\u8bb0\uff1b<\/p>\n f.\u987a\u7740e\u56fe\u4e2d\u7684\u767d\u8272\u865a\u7ebf\uff0c\u7528\u540c\u6837\u7684\u5f69\u8272\u7f16\u7801\u65b9\u6cd5\u5f97\u5230\u7684\u5f3a\u5ea6\u8c31\u7ebf\u8f6e\u5ed3\u3002<\/p>\n \u56fe5\uff1a\u8d85\u8584\u91d1\u5c5eVSe2<\/sub>\u7eb3\u7c73\u7247\u7684\u7535\u5b50\u8fd0\u8f93\u7279\u6027\u53caCDW\u8f6c\u6362\u7279\u6027<\/strong><\/p>\n a.1T-VSe2<\/sub>\u7684\u7535\u5b50\u6001\u5bc6\u5ea6\u539f\u7406\u56fe\uff1b<\/p>\n b. a\u56fe\u4e2dVSe2<\/sub>\u88c5\u7f6e\u7684\u7535\u963b\u7387(\u9ed1\u7ebf\u53ca\u7bad\u5934\u6307\u793a)\u548c\u7535\u5bfc\u7387(\u84dd\u8272\u865a\u7ebf\u53ca\u7bad\u5934\u6307\u793a)\u7684\u6e29\u5ea6\u76f8\u5173\u56fe\u3002\u63d2\u56fe\u4e3a\uff1a\u7528\u4e09\u89d2\u5f62VSe2\u7eb3\u7c73\u7247(\u539a\u5ea6\u7ea610nm)\u5236\u4f5c\u7684\u4f20\u7edf\u7684\u970d\u5c14\u6761\u88c5\u7f6e\uff1b<\/p>\n c. VSe2<\/sub>\u7eb3\u7c73\u7247\u3001\u5404\u79cd\u5bfc\u7535\u7684\u4e8c\u7ef4\u6750\u6599\u3001\u5e38\u89c1\u91d1\u5c5e\u4e4b\u95f4\u7535\u5bfc\u7387\u7684\u6bd4\u8f83\uff1b<\/p>\n d. \u539a\u5ea6\u5206\u522b\u4e3a7\u300110\u300122nm\u7684VSe2<\/sub>\u7eb3\u7c73\u7247\u7535\u963b\u7387-\u6e29\u5ea6\u76f8\u5173\u56fe\u3002\u7ebf\u6027\u7684\u548c\u4e0d\u89c4\u5219\u7684\u533a\u57df\u5206\u522b\u7531\u6a59\u8272\u548c\u84dd\u8272\u6807\u8bb0\uff1b<\/p>\n e.\u539a\u5ea6\u7ea6\u4e3a10nm\u7eb3\u7c73\u7247\u7684Rxx-T(\u84dd\u7ebf)\u548cdR\/dT-T(\u84dd\u70b9)\u66f2\u7ebf\uff1b<\/p>\n f. \u4ee5VSe2<\/sub>\u7684\u539a\u5ea6\u51fd\u6570\u7ed8\u5236\u7684CDW\u8f6c\u79fb\u6e29\u5ea6(Tp)\u56fe\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u5728\u672c\u6587\u4e2d\uff0c\u4e3a\u4e86\u5408\u6210\u4e91\u6bcd\u4e0a\u539a\u5ea6\u53ef\u8c03\u7684\u91d1\u5c5eVSe2<\/sub>\u7eb3\u7c73\u7247\uff0c\u8fd0\u7528\u7075\u6d3b\u7684CVD\u65b9\u6cd5\uff0c\u7814\u7a76\u51fa\u4e86\u8303\u5fb7\u74e6\u5c14\u65af\u5916\u5ef6\u7b56\u7565\u3002\u5f97\u5230\u7684\u516d\u89d2\u548c\u4e09\u89d2\u5f62VSe2<\/sub>\u7eb3\u7c73\u7247\u6709\u7740\u9ad8\u8d28\u91cf\u7684\u5355\u6676\u7ed3\u6784\u3001\u76f8\u540c\u76841T\u76f8\u4f4d\u4ee5\u53ca\u5728\u5916\u754c\u6761\u4ef6\u4e0b\u7a33\u5b9a\u7684\u6027\u8d28\u3002\u8fd9\u4e2a\u5916\u5ef6\u751f\u957f\u7b56\u7565\u662f\u5408\u6210\u5176\u4ed6\u8d85\u8584\u91d1\u5c5e\u4e8c\u7ef4\u6750\u6599\u548c\u5176\u8303\u5fb7\u74e6\u5c14\u65af\u5f02\u8d28\u7ed3\u6784\u7684\u91cd\u8981\u53c2\u8003\u3002\u5c24\u5176\u662fVSe2<\/sub>\u7eb3\u7c73\u7247\u8868\u73b0\u51fa\u7684\u9ad8\u7535\u5bfc\u7387\uff0c\u6bd4\u5176\u4ed6\u7684\u4e8c\u7ef4\u5bfc\u7535\u6750\u6599\u9ad81\u20144\u4e2a\u767e\u5206\u70b9\uff0c\u4e0e\u4f20\u7edf\u7684\u91d1\u5c5e\u76f8\u5f53\u3002\u7531\u4e8e\u8fd9\u4e00\u6027\u8d28\uff0c\u4eceCVD\u5f97\u5230\u7684\u6837\u54c1\u53ef\u4ee5\u4e3aFET\u88c5\u7f6e\u5236\u4f5c\u4ee5\u4e8c\u7ef4\u6750\u6599\u4e3a\u57fa\u7684\u7535\u6781\uff0c\u4e5f\u53ef\u4ee5\u6784\u9020\u5176\u4ed6\u7edd\u7f18\u3001\u534a\u5bfc\u4ee5\u53ca\u534a\u91d1\u5c5e\u4e8c\u7ef4\u6750\u6599\u7684\u8303\u5fb7\u74e6\u5c14\u65af\u5f02\u8d28\u7ed3\u6784\uff0c\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u5c31\u8fd9\u4e00\u70b9\u800c\u8a00\uff0c\u8fd9\u4e2a\u7814\u7a76\u5de5\u4f5c\u4e3a\u4e8c\u7ef4\u7684MTMD\u6676\u4f53\u7684\u539a\u5ea6\u53ef\u8c03\u5408\u6210\u4f53\u548c\u5176\u7279\u6027\u7814\u7a76\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\uff0c\u6709\u7740\u91cd\u8981\u7684\u7814\u7a76\u610f\u4e49\u3002<\/p>\n \u6587\u732e\u94fe\u63a5\uff1a<\/strong>Zhang Z, Niu J, Yang P, et al. Van der Waals Epitaxial Growth of 2D Metallic Vanadium Diselenide Single Crystals and their Extra\u2010High Electrical Conductivity[J]. Advanced Materials, 2017.<\/p>\n \u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u5218\u9526\u9526\u7f16\u8bd1\uff0c\u5468\u68a6\u9752\u5ba1\u6838\uff0c\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n