{"id":210158,"date":"2020-10-03T06:36:12","date_gmt":"2020-10-02T22:36:12","guid":{"rendered":"\/\/m.iemloyee.com\/?p=210158"},"modified":"2020-10-02T19:36:45","modified_gmt":"2020-10-02T11:36:45","slug":"%e3%80%90%e5%b7%b2%e5%9b%9e%e5%a4%8d%e3%80%91nature-materials%ef%bc%9a%e5%85%ad%e6%96%b9%e6%b0%ae%e5%8c%96%e7%a1%bc%e8%a1%a8%e9%9d%a2%e7%9a%84%e7%9f%b3%e5%a2%a8%e7%83%af%e7%ba%b3%e7%b1%b3%e5%b8%a6","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=210158","title":{"rendered":"Nature Materials\uff1a\u516d\u65b9\u6c2e\u5316\u787c\u8868\u9762\u7684\u77f3\u58a8\u70ef\u7eb3\u7c73\u5e26\u624b\u6027\u53ef\u63a7\u5236\u5907"},"content":{"rendered":"

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

GNR\u662f\u51c6\u4e00\u7ef4\u77f3\u58a8\u70ef\u7eb3\u7c73\u7ed3\u6784\uff0c\u6839\u636e\u8fb9\u754c\u7ed3\u6784\u4e0d\u540c\u53ef\u4ee5\u8868\u73b0\u51fa\u51c6\u91d1\u5c5e\u6027\u6216\u534a\u5bfc\u4f53\u6027\u3002GNR\u7684\u72ec\u7279\u7535\u5b66\u6027\u8d28\u4f7f\u5176\u53ef\u80fd\u5728\u672a\u6765\u7eb3\u7c73\u7535\u5b50\u6280\u672f\u4e2d\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002GNR\u53ef\u4ee5\u6839\u636e\u8fb9\u754c\u7ed3\u6784\u7684\u4e0d\u540c\u5206\u4e3a\u952f\u9f7f\u578b\uff08ZZ\uff09\u548c\u6276\u624b\u6905\u578b\uff08AC\uff09\u3002ZZ GNR\uff08ZGNR\uff09\u5c55\u73b0\u51fa\u94c1\u78c1\u6027\u548c\u534a\u91d1\u5c5e\u6027\u7b49\u5947\u7279\u7684\u7535\u5b66\u7279\u6027\uff0c\u800c\u7406\u8bba\u8ba1\u7b97\u8868\u660eAC GNR\uff08AGNR\uff09\u5177\u6709\u534a\u5bfc\u4f53\u7279\u6027\uff0c\u5176\u5e26\u9699\u5927\u5c0f\u4e0e\u5176\u5bbd\u5ea6\u6210\u53cd\u6bd4\u3002ZGNR\u548cAGNR\u90fd\u5177\u6709\u4e0d\u540c\u7684\u7535\u5b50\u6001\u548c\u6563\u5c04\u7279\u6027\u4ee5\u53ca\u72ec\u7279\u7684\u5316\u5b66\u7279\u6027\uff0c\u800c\u4e14\u5176\u6027\u8d28\u4f1a\u53d7\u5230\u8fb9\u754c\u4fee\u9970\u7684\u5f71\u54cd\u3002\u6700\u8fd1\u7814\u7a76\u8868\u660e\u77f3\u58a8\u70ef\u4e0eh-BN\u901a\u8fc7\u8303\u5fb7\u534e\u5806\u579b\u548c\u5e73\u9762\u5171\u4ef7\u952e\u7ed3\u5408\u5f62\u6210\u5f02\u8d28\u7ed3\u65f6\uff0c\u5176\u5316\u5b66\/\u673a\u68b0\u7a33\u5b9a\u6027\u65b9\u9762\u53ef\u4ee5\u5c55\u73b0\u51fa\u660e\u663e\u4f18\u52bf\uff0c\u6709\u53ef\u80fd\u51fa\u73b0\u4e0e\u5355\u72ec\u7684\u77f3\u58a8\u70ef\u6216h-BN\u4e0d\u540c\u7684\u65b0\u5947\u7535\u5b66\u6027\u8d28\u3002\u7136\u800c\uff0c\u5b9e\u73b0\u624b\u6027\u53ef\u63a7\u7684GNRs\u5f02\u8d28\u7ed3\u6784\u5236\u5907\u4ecd\u7136\u9762\u4e34\u8bf8\u591a\u6311\u6218\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u4e2d\u79d1\u9662\u4e0a\u6d77\u5fae\u7cfb\u7edf\u4e0e\u4fe1\u606f\u6280\u672f\u7814\u7a76\u6240\u738b\u6d69\u654f\u7814\u7a76\u5458<\/strong>\u3001\u5965\u5730\u5229\u7ef4\u4e5f\u7eb3\u5927\u5b66<\/strong>Jannik C. Meyer<\/strong>\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09<\/strong>\u7b49\u4eba\u5171\u540c\u5f00\u53d1\u4e86\u4e00\u79cd\u4e24\u6b65\u751f\u957f\u6cd5\uff0c\u6210\u529f\u5236\u5907\u5d4c\u5165h-BN\u4e2d\u7684\u4e9a5 nm\u5bbdZGNR\u548cAGNR\u3002\u8f93\u8fd0\u6d4b\u91cf\u8868\u660e\u4e9a7 nm\u7684ZGNR\u7684\u5e26\u9699\u5927\u5c0f\u4e0e\u5176\u5bbd\u5ea6\u6210\u53cd\u6bd4\uff0c\u800c\u8f83\u7a84\u7684AGNR\u7684\u5e26\u9699-\u5bbd\u5ea6\u5173\u7cfb\u8868\u73b0\u51fa\u6ce2\u52a8\u6027\u3002\u57288-10 nm\u5bbd\u7684ZGNR\u7684\u4f20\u8f93\u66f2\u7ebf\u4e2d\u89c2\u5bdf\u5230\u660e\u663e\u7684\u7535\u5bfc\u5cf0\uff0c\u4f46\u662f\u5728\u5927\u591a\u6570AGNR\u4e2d\u5374\u6ca1\u6709\u51fa\u73b0\u3002\u540c\u65f6\u78c1\u8f93\u8fd0\u7814\u7a76\u8868\u660eZGNR\u5c55\u73b0\u51fa\u8f83\u5c0f\u7684\u78c1\u5bfc\u7387\uff0c\u4f46\u662fAGNR\u5177\u6709\u8f83\u9ad8\u7684\u78c1\u5bfc\u7387\u3002h-BN\u8868\u9762\u5d4c\u5165\u5f0f\u624b\u6027\u53ef\u63a7GNR\u7684\u6210\u529f\u5236\u5907\u4e3a\u590d\u6742\u7eb3\u7c73\u96c6\u6210\u7535\u8def\u63d0\u4f9b\u4e86\u7684\u65b0\u9014\u5f84\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201c<\/strong>Towards chirality control of graphene nanoribbons embedded in hexagonal boron nitride<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728Nature Materials<\/strong>\u4e0a\u3002<\/p>\n

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

\u56fe<\/strong> 1 <\/strong>\u5d4c\u5165<\/strong>h-BN<\/strong>\u7684\u53d6\u5411<\/strong>GNRs<\/strong>\u7684\u5408\u6210\u65b9\u6cd5<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u5728h-BN\u4e2d\u5d4c\u5165\u7684ZGNR\u548cAGNR\u7684\u793a\u610f\u56fe\uff1b<\/p>\n

\uff08b\uff09\u7279\u5b9a\u53d6\u5411\u7684GNR\u7684\u5408\u6210\u65b9\u6cd5\u3002<\/p>\n

\u56fe<\/strong> 2 <\/strong>\u5d4c\u5165<\/strong>h-BN<\/strong>\u9876\u5c42\u5177\u6709\u7279\u5b9a\u8fb9\u754c\u7684\u7eb3\u7c73\u6c9f\u69fd\u548c<\/strong>GNR<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff0cc\uff09\u7eb3\u7c73\u7c92\u5b50\u9009\u62e9\u6027\u523b\u8680\u540e\u7684\u4e9a5 nm\u5bbdZZ\uff08a\uff09\u548cAC\uff08c\uff09\u7684\u7eb3\u7c73\u6c9f\u69fd\u7684\u4e09\u7ef4AFM\u9ad8\u5ea6\u56fe\u50cf\uff1b<\/p>\n

\uff08b\uff0cd\uff09\u4e9a5 nm\u8d85\u7a84ZGNR\uff08b\uff09\u548cAGNR\uff08d\uff09\u7684\u4e09\u7ef4AFM\u9ad8\u5ea6\u56fe\u50cf\u3002<\/p>\n

\u56fe<\/strong> 3 h-BN<\/strong>\u4e0a<\/strong>GNR<\/strong>\u5668\u4ef6\u7684\u7535\u5b66\u8f93\u8fd0\u7279\u6027<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u4e0d\u540c\u6e29\u5ea6\u65f6\uff0c~5 nm\u5bbdAGNR\u5668\u4ef6\u7684\u7535\u5bfc\u7387\uff08G\uff09\u4e0e\u80cc\u6805\u7535\u538b\uff08Vgate<\/sub>\uff09\u7684\u5173\u7cfb\u56fe\uff1b<\/p>\n

\uff08b\uff09\u4e0d\u540cVgate<\/sub>\u503c\u65f6\uff0c\u572825-300 K\u533a\u95f4\u5185AGNR \u5668\u4ef6\u7535\u963b\u4e0e\u6e29\u5ea6\u7684\u5173\u7cfb\u56fe\uff1b<\/p>\n

\uff08c\uff09~4.8 nm\u5bbd\u7684AGNR\u7684\u7535\u5b66\u8f93\u8fd0\u7ed3\u679c\uff1b<\/p>\n

\uff08d\uff09300 K\u65f6\uff0cAGNR\u5668\u4ef6\u5728Vgate<\/sub>\u4e3a-25-25 V\u65f6\u7684ISD<\/sub>-VSD<\/sub>\u7279\u6027\u66f2\u7ebf\uff1b<\/p>\n

\uff08e\uff09GNR\u5e26\u9699\u5927\u5c0f\uff08Eg\uff09\u4e0e\u5bbd\u5ea6\uff08w\uff09\u7684\u5173\u7cfb\u56fe\uff1b<\/p>\n

\uff08f\uff09GNR\u5668\u4ef6\u7684\u8fc1\u79fb\u7387\u548cMFP\u4e0e\u5bbd\u5ea6\u7684\u53d8\u5316\u5173\u7cfb\u56fe\u3002<\/p>\n

\u00a0<\/strong>\u56fe<\/strong> 4 <\/strong>h-BN<\/strong>\u8868\u9762\u5bbd<\/strong>GNR<\/strong>\u7684\u573a\u6548\u5e94\u548c\u78c1\u7535\u7279\u6027<\/strong><\/p>\n

\"\"<\/p>\n

\uff08a\uff09\u4e0d\u540c\u6e29\u5ea6\u4e0b\uff0c~8.9 nm\u5bbd\u7684ZGNR\u6837\u54c1\u7684\u5178\u578b\u8f6c\u79fb\u66f2\u7ebf\u56fe\uff1b<\/p>\n

\uff08b\uff09\u4e0d\u540c\u6e29\u5ea6\u4e0b\uff0c~9.5 nm\u5bbd\u7684AGNR\u6837\u54c1\u7684\u5178\u578b\u8f6c\u79fb\u66f2\u7ebf\u56fe\uff1b<\/p>\n

\uff08c\uff09\u6839\u636e\u7535\u5bfc\u7387\u5cf0\u503c\u7684\u7279\u5f81\uff0c\u533a\u5206\u4e0d\u540c\u8fb9\u754cGNR\u7684\u7c7b\u578b\u5206\u5e03\u7684\u997c\u56fe\uff1b<\/p>\n

\uff08d\uff094 K\u65f6\uff0c\u4e0d\u540cVgate<\/sub>\u503c\u4e0bZGNR\u6837\u54c1\u7684\u5f52\u4e00\u5316\u78c1\u5bfc\u7387\u56fe\uff1b<\/p>\n

\uff08e\uff092 K\u65f6\uff0c\u4e0d\u540cVgate<\/sub>\u503c\u4e0bAGNR\u6837\u54c1\u7684\u5f52\u4e00\u5316\u78c1\u5bfc\u7387\u56fe\uff1b<\/p>\n

\uff08f\uff09\u4e0d\u540c\u5bbd\u5ea6\u7684GNR\u5728\u4e0d\u540cVgate<\/sub>\u65f6\u7684\u5f52\u4e00\u5316\u78c1\u5bfc\u7387\u5206\u5e03\u3002<\/p>\n

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

\u8be5\u5de5\u4f5c\u62a5\u9053\u4e86\u7edd\u7f18h-BN\u9876\u5c42\u539f\u5b50\u5c42\u4e2d\u53d6\u5411\u53ef\u63a7\u7684GNRs\u5236\u5907\u3002\u672c\u65b9\u6cd5\u7ed3\u5408\u4f20\u7edf\u7684\u81ea\u4e0a\u5411\u4e0b\uff08h-BN\u5c42\u7684\u53d6\u5411\u523b\u8680\uff09\u548c\u81ea\u4e0b\u5411\u4e0a\uff08GNR\u6a21\u677f\u751f\u957f\uff09\u65b9\u6cd5\uff0c\u5b9e\u73b0\u4e86\u5728\u4e8c\u7ef4\u7edd\u7f18h-BN\u8868\u9762\u7684\u9762\u5185\u65e0\u7f1d\u62fc\u63a5GNR\u5236\u5907\uff0c\u5e76\u4e14GNR\u53ef\u4ee5\u4fdd\u6301\u5176\u72ec\u7279\u7684\u7535\u5b66\u6027\u8d28\u3002\u6b64\u65b9\u6cd5\u4e0d\u4f1a\u6539\u53d8h-BN\u7684\u673a\u68b0\u5f3a\u5ea6\u3001\u67d4\u97e7\u6027\u548c\u5149\u5b66\u900f\u660e\u6027\u7b49\u6027\u8d28\uff0c\u56e0\u6b64\u53ef\u4ee5\u7528\u4e8e\u5177\u6709\u67d4\u6027\u3001\u900f\u660e\u7b49\u8981\u6c42\u7684\u7535\u5b50\u4ea7\u54c1\u3002\u8f93\u8fd0\u6d4b\u91cf\u8868\u660e\uff0cZGNRs\u548cAGNRs\u8868\u73b0\u51fa\u660e\u663e\u7684\u7535\u5bfc\u7387\u548c\u78c1\u5bfc\u7387\u5dee\u5f02\u3002\u5728\u9ad8\u8d28\u91cf\u7edd\u7f18\u886c\u5e95\u4e0a\u7684\u534a\u5bfc\u4f53GNR\u5236\u5907\u4e3a\u539f\u5b50\u7ea7\u539a\u5ea6\u7684\u8d85\u5927\u89c4\u6a21\u96c6\u6210\u7535\u8def\u5236\u5907\u5960\u5b9a\u4e86\u57fa\u7840\u3002ZGNR\u4e0e\u8d85\u5bfc\u4f53\u7684\u63a5\u89e6\u4f1a\u8868\u73b0\u51fa\u62d3\u6251\u7535\u5b50\u6001\uff0c\u53ef\u80fd\u5728\u91cf\u5b50\u8ba1\u7b97\u4e2d\u5f97\u5230\u5e94\u7528\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5<\/strong>Towards chirality control of graphene nanoribbons embedded in hexagonal boron nitride<\/strong><\/a>\uff08Nature Materials DOI: 10.1038\/s41563-020-00806-2\uff09\u3002<\/p>\n

\u3010\u901a\u8baf\u4f5c\u8005<\/strong>\/<\/strong>\u56e2\u961f\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u738b\u6d69\u654f<\/strong>\uff0c\u7537\uff0c\u4e2d\u56fd\u79d1\u5b66\u9662\u4e0a\u6d77\u5fae\u7cfb\u7edf\u4e0e\u4fe1\u606f\u6280\u672f\u7814\u7a76\u6240\u7814\u7a76\u5458\u3002<\/p>\n

2009\u5e74\u4e8e\u65b0\u52a0\u5761\u56fd\u7acb\u5927\u5b66\u7535\u6c14\u4e0e\u7535\u8111\u5de5\u7a0b\u7cfb\u83b7\u535a\u58eb\u5b66\u4f4d\u30022011\u5e74\u52a0\u5165\u4fe1\u606f\u529f\u80fd\u6750\u6599\u56fd\u5bb6\u91cd\u70b9\u5b9e\u9a8c\u5ba4\uff0c\u73b0\u4efb\u7814\u7a76\u5458\u3002\u56e2\u961f\u7784\u51c6\u77f3\u58a8\u70ef\u7814\u7a76\u7684\u56fd\u9645\u524d\u6cbf\uff0c\u56f4\u7ed5\u77f3\u58a8\u70ef\u5728\u5fae\u7535\u5b50\u5e94\u7528\u9762\u4e34\u7684\u4e3b\u8981\u79d1\u5b66\u95ee\u9898\u8fdb\u884c\u6301\u7eed\u521b\u65b0\uff0c\u63a2\u7d22\u5176\u5fae\u7535\u5b50\u5b66\u5e94\u7528\u7684\u53d1\u5c55\u65b9\u5411\u53ca\u6280\u672f\u8def\u7ebf\uff0c\u62d3\u5c55\u5176\u5728\u96c6\u6210\u7535\u8def\u3001\u8ba1\u91cf\u7b49\u9886\u57df\u7684\u5e94\u7528\uff0c\u5728\u77f3\u58a8\u70ef\u7eb3\u7c73\u5e26\u5236\u5907\u53ca\u5176\u5668\u4ef6\u65b9\u9762\u5f62\u6210\u7279\u8272\u9c9c\u660e\u7684\u7cfb\u7edf\u7814\u7a76\u3002\u5728Nat. Mater., Nat. Comm., Nano Lett., ACS Nano, Nanoscale, APL\u7b49\u520a\u7269\u4e0a\u53d1\u8868\u8bba\u658739\u4f59\u7bc7\uff0c\u603b\u5b83\u5f155100\u6b21\u3002\u4f5c\u4e3a\u8d1f\u8d23\u4eba\u548c\u9879\u76ee\u9aa8\u5e72\u627f\u62c5\u56fd\u5bb6\u91cd\u5927\u4e13\u9879\u3001\u56fd\u5bb6\u81ea\u7136\u79d1\u5b66\u57fa\u91d1\u3001\u4e2d\u79d1\u9662\u91cd\u70b9\u90e8\u7f72\u9879\u76ee\u3001\u4e2d\u79d1\u9662\u6218\u7565\u6027\u5148\u5bfc\u4e13\u9879\u9879\u76ee\u8bfe\u9898\u3001\u56fd\u5bb6\u91cd\u70b9\u7814\u53d1\u8ba1\u5212\u9879\u76ee\u548c\u4e0a\u6d77\u5e02\u79d1\u59d4\u9879\u76ee\u7b49\u591a\u9879\u79d1\u7814\u9879\u76ee\u3002\u66fe\u83b7\u5f97\u4e0a\u6d77\u5e02\u81ea\u7136\u79d1\u5b66\u5956\u4e00\u7b49\u5956\uff08\u7b2c\u4e8c\u5b8c\u6210\u4eba\uff09\u3002<\/p>\n

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