{"id":115839,"date":"2017-12-08T06:30:15","date_gmt":"2017-12-07T22:30:15","guid":{"rendered":"\/\/m.iemloyee.com\/?p=115839"},"modified":"2017-12-07T21:03:20","modified_gmt":"2017-12-07T13:03:20","slug":"nature-%e5%ad%90%e5%88%8a%ef%bc%9a%e5%88%a9%e7%94%a8%e4%bd%8d%e9%94%99%e5%90%88%e6%88%90%e5%b5%8c%e5%85%a5%e4%ba%8c%e7%bb%b4%e6%9d%90%e6%96%99%e4%b8%ad%e7%9a%84%e4%b8%80%e7%bb%b4%e7%ba%b3%e7%b1%b3","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=115839","title":{"rendered":"Nature \u5b50\u520a\uff1a\u5229\u7528\u4f4d\u9519\u5408\u6210\u5d4c\u5165\u4e8c\u7ef4\u6750\u6599\u4e2d\u7684\u4e00\u7ef4\u7eb3\u7c73\u7ebf"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u4e8c\u7ef4\uff082D\uff09\u6750\u6599\u7531\u4e8e\u5176\u539f\u5b50\u7ea7\u7684\u8584\u5ea6\u800c\u6210\u4e3a\u4e0b\u4e00\u4ee3\u7535\u5b50\u5b66\u6700\u6709\u524d\u9014\u7684\u5019\u9009\u6750\u6599\u4e4b\u4e00\uff0c\u5141\u8bb8\u7075\u6d3b\u7684\u900f\u660e\u7535\u5b50\u5143\u4ef6\u548c\u6781\u9650\u957f\u5ea6\u7f29\u653e\u3002\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u5df2\u7ecf\u8bc1\u5b9e\u4e86\u539f\u5b50\u7ea7\u8584\u7684p-n\u7ed3\uff0c\u91d1\u5c5e – \u534a\u5bfc\u4f53\u63a5\u89e6\u548c\u91d1\u5c5e – \u7edd\u7f18\u4f53\u5c4f\u969c\u3002\u867d\u7136\u4e8c\u7ef4\u6750\u6599\u5b9e\u73b0\u4e86\u6700\u8584\u7684\u8bbe\u5907\uff0c\u4f46\u6a2a\u5411\u5c3a\u5bf8\u7684\u7cbe\u786e\u7eb3\u7c73\u7ea7\u63a7\u5236\u4e5f\u662f\u5fc5\u8981\u7684\u3002<\/p>\n \u51cf\u5c0f\u539f\u5b50\u7ea72D\u5668\u4ef6\u7684\u6a2a\u5411\u5c3a\u5ea6\u4e0d\u4ec5\u5bf9\u4e8e\u5b9e\u73b0\u7535\u5b50\u5668\u4ef6\u5e94\u7528\u81f3\u5173\u91cd\u8981\uff0c\u800c\u4e14\u5bf9\u4e8e\u8fbe\u5230\u91cf\u5b50\u9650\u5236\u6240\u9700\u7684\u957f\u5ea6\u5c3a\u5ea6\u4e5f\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u8fc4\u4eca\u4e3a\u6b62\uff0c\u8bb8\u591a\u8bbe\u5907\u4f9d\u9760\u4e00\u4e2a2D\u5c42\uff0c\u63a5\u7740\u7684\u53e6\u4e00\u4e2a\u5728\u6240\u8ff0\u56fe\u6848\u5316\u7684\u8868\u9762\u751f\u957f\u76842D\u5f02\u8d28\u5149\u523b\u6784\u56fe\uff0c\u867d\u7136\u8fd9\u79cd\u6280\u672f\u63d0\u4f9b\u7a7a\u95f4\u63a7\u5236\u53ef\u4ee5\u8fbe\u5230\u4e00\u767e\u7eb3\u7c73\u5de6\u53f3\uff0c\u5149\u523b\u65b9\u6cd5\u4f9d\u7136\u5b58\u5728\u539f\u5b50\u7f3a\u9677\u548c\u6c61\u67d3\u3002\u56e0\u6b64\uff0c\u8fd9\u4e9b\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u539f\u5b50\u7ed3\u5305\u542b\u7535\u5b50\u7f3a\u9677\u6001\uff0c\u5f71\u54cd\u5668\u4ef6\u6027\u80fd\u3002\u6700\u8fd1\uff0c\u62a5\u9053\u4e86\u7528\u5316\u5b66\u6c14\u76f8\u6c89\u79ef\uff08CVD\uff09\u65b9\u6cd5\u57282D\u6750\u6599\u4e4b\u95f4\u5fae\u7c73\u5c3a\u5bf8\u7684\u521d\u59cb\u5916\u5ef6\u754c\u9762\u7684\u751f\u957f\u3002\u7406\u8bba\u9884\u8a00\u53ef\u8c03\u8c10\u8f7d\u6d41\u5b50\u7981\u95ed\uff0c\u5e76\u4e14\u57282D\u6750\u6599\u7684\u5f02\u8d28\u7ed3\u6784\u7684\u7a81\u53d8\u548c\u76f8\u5e72\u754c\u9762\u5904\u5f62\u6210\u4e00\u7ef4\u7535\u5b50\u6c14\uff0c\u5176\u4ec5\u4ec5\u662f\u51e0\u4e2a\u539f\u5b50\u5bbd\u3002<\/p>\n \u672c\u6587\u4f5c\u8005\u5de7\u5999\u5229\u7528\u4f4d\u9519\u6210\u529f\u5728\u4e8c\u7ef4\u6750\u6599\u4e0a\u751f\u957f\u51fa\u4e86\u4e9a\u7eb3\u7c73\u5c3a\u5ea6\u7684\u4e00\u7ef4\u7eb3\u7c73\u7ebf\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u963f\u535c\u675c\u62c9\u56fd\u738b\u79d1\u6280\u5927\u5b66\u7684Lain-Jong Li\u548c\u5eb7\u5948\u5c14\u5927\u5b66David A. Muller\uff08\u5171\u540c\u901a\u8baf\uff09<\/strong>\u5728Nature Materials<\/strong>\u4e0a\u53d1\u8868\u4e86\u9898\u4e3a\u201cSub-nanometre channels embedded in\u00a0<\/strong>two-dimensional materials\u201d<\/strong>\u7684\u7814\u7a76\u8bba\u6587\uff0c\u6587\u4e2d\u62a5\u9053\u4e86\u4e00\u79cd\u4f7f\u7528\u4f4d\u9519\u50ac\u5316\u76f4\u63a5\u5408\u6210\u5d4c\u5165WSe2<\/sub>\u5355\u5c42\u7684\u4e9a\u7eb3\u7c73\u5bbd\u4e00\u7ef4\uff081D\uff09\u4e8c\u786b\u5316\u94bc\u901a\u9053\u7684\u65b9\u6cd5\u3002\u5408\u6210\u7684\u4e00\u7ef4\u901a\u9053\u6ca1\u6709\u5931\u914d\u4f4d\u9519\u548c\u60ac\u6302\u952e\uff0c\u4e0e\u5d4c\u5165\u7684\u4e8c\u7ef4\u77e9\u9635\u5f62\u6210\u4e00\u4e2a\u8fde\u8d2f\u7684\u754c\u9762\u3002\u5468\u671f\u6027\u4f4d\u9519\u9635\u5217\u5728WSe2\u4e2d\u4ea7\u751f\u76f8\u5e72MoS2<\/sub> 1D\u901a\u9053\u7684\u4e8c\u7ef4\u8d85\u6676\u683c\u3002\u5e76\u4f7f\u7528\u5206\u5b50\u52a8\u529b\u5b66\u6a21\u62df\uff0c\u786e\u5b9a\u4e862D\u6750\u6599\u7684\u5176\u4ed6\u7ec4\u5408\u4e5f\u53ef\u4ee5\u5f62\u6210\u4e00\u7ef4\u901a\u9053\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe1\uff1a\u4e00\u7ef4\u901a\u9053\u7684\u5f62\u6210<\/strong><\/p>\n a<\/strong>\uff0c\u7531MoS2<\/sub>-WSe2<\/sub>\u6a2a\u5411\u5f02\u8d28\u7ed3\u5904\u7684\u5931\u914d\u4f4d\u9519\uff08\u6807\u8bb0\u4e3a\u201cT\u201d\uff09\u5f15\u5bfc\u7684\u6784\u56fe\u5de5\u827a\u7684\u793a\u610f\u56fe\uff1b \u56fe2\uff1a\u4e00\u7ef4\u901a\u9053\u7684\u5e94\u53d8\u56fe<\/strong><\/p>\n a\uff0cb\uff0c\u5d4c\u5165\u5728WSe2<\/sub>\u4e2d\u7684MoS2<\/sub> 1D\u901a\u9053\u7684ADF-STEM\u56fe\u50cf\u3002 \u901a\u9053\u4ee55|7\u9519\u4f4d\uff08b\u4e2d\u7684\u767d\u8272\u6846\uff09\u7ed3\u675f\u3002 \u76f8\u540c\u7684\u90e8\u5206\u663e\u793a\u5728\u53f3\u4fa7\uff0c\u5e26\u6709\u6807\u8bb0\u7684\u539f\u5b50\uff1b<\/p>\n c\uff0cd\uff0c\u5355\u8f74\u5e94\u53d8\u5206\u91cf\u201c \u03b5xx<\/sub>\u201d\uff08c\uff09\u548c\u201c\u03b5yy<\/sub>\u201d\uff08d\uff09\u4e2d\u4e00\u7ef4MoS2<\/sub>\u7684\u51e0\u4f55\u76f8\u5206\u6790\uff08GPA\uff09\u3002 \u6240\u6709\u7684\u5e94\u53d8\u90fd\u662f\u53c2\u8003WSe2<\/sub>\u6676\u683c\u3002 \u03b5xx<\/sub>\u4e3b\u8981\u662f\u7531\u4e8e\u6676\u683c\u5931\u914d\u800c\u660e\u786e\u533a\u5206\u4e24\u4e2a\u6676\u683c\uff0c\u800c\u03b5yy<\/sub>\u8868\u793a\u6676\u683c\u76f8\u5bf9\u4e8eWSe2<\/sub>\u5931\u914d\u76841S MoS2<\/sub>\u4e2d\u7684\u9ad8\u5355\u8f74\u62c9\u4f38\u5e94\u53d8\u3002<\/p>\n e\uff0cf\uff0c\u526a\u5e94\u53d8\u548c\u65cb\u8f6c\u56fe\uff08\u5f27\u5ea6\uff09\u5206\u522b\u8868\u793a\u4f4d\u9519\u7684\u4f4d\u7f6e\u548c\u65b9\u5411\u3002<\/p>\n g\uff0cADF-STEM\u56fe\u50cf\uff08\u5de6\uff09\u53ca\u5176\u7531WSe2<\/sub>\u4e2d\u7684\u56fa\u67095 | 7\u4f4d\u9519\u5f62\u6210\u7684MoS2<\/sub> 1D\u901a\u9053\u7684\u03b5xx<\/sub>\u5e94\u53d8\u56fe\uff08\u53f3\uff09\uff0c\u5176\u4e0e\u6765\u81ea\u5f02\u8d28\u7ed3\u754c\u9762\u7684\u901a\u9053\u4e2d\u53d1\u73b0\u7684\u7ed3\u679c\u76f8\u5339\u914d\u3002<\/p>\n \u56fe3\uff1a\u4e00\u7ef4\u901a\u9053\u5f62\u6210\u7684\u5206\u5b50\u52a8\u529b\u5b66\uff08MD\uff09\u6a21\u62df<\/strong><\/p>\n a\uff0cb<\/strong>\uff0cMD\u5bf95|7\u4f4d\u9519\uff08a\uff09\u7684\u4e94\u8fb9\u5f62\u73af\u63d2\u5165\u8fc7\u7a0b\u548c\u5f62\u6210\u4e0b\u4e00\u4e2a5|7\u4f4d\u9519\uff08b\uff09\u8fc7\u7a0b\u7684MD\u6a21\u62df\uff1b<\/p>\n c<\/strong>\uff0c\u56fe\u6848\u5316\u8fc7\u7a0b\u7684\u6bcf\u4e2a\u6b65\u9aa4\u7684MD\u6a21\u62df\u3002 5|7\u9519\u4f4d\u53ef\u4ee5\u5411\u53f3\uff08\u84dd\u8272\u7bad\u5934\uff09\u79fb\u52a830\u00b0\uff0c\u6216\u5411\u5de6\u79fb\u52a830\u00b0\uff08\u7ea2\u8272\u7bad\u5934\uff09\u3002<\/p>\n d<\/strong>\uff0c\u52a0\u5165\u8fc7\u91cf\u7684Mo\u548cS\u539f\u5b50\u8fed\u4ee3\u5f62\u6210WSe2<\/sub>\u4e2d\u7684\u4e00\u7ef4MoS2<\/sub>\u901a\u9053\uff0c\u63ed\u793a\u4e86\u5f62\u6210\u4e00\u7ef4\u901a\u9053\u7684\u5316\u5b66\u9a71\u52a8\u673a\u5236\u3002<\/p>\n \u56fe4\uff1a\u5728\u6676\u754c\u5904\u751f\u6210\u8d85\u6676\u683c<\/strong><\/p>\n a\uff0c\u9876\u90e8\uff08\u5e95\u90e8\uff09\u9762\u677f\u63cf\u7ed8\u56fe\u6848\u5316\u8fc7\u7a0b\u4e4b\u524d\uff08\u4e4b\u540e\uff09\u7684\u6676\u754c\u7684\u8d85\u6676\u683c\u5f62\u6210\u793a\u610f\u56fe\uff1b<\/p>\n b\uff0c\u7531WSe2<\/sub>\u6676\u754c\u7684\u5468\u671f\u6027\u4f4d\u9519\u548c9\u6b21\u65cb\u8f6c\uff08\u4f4d\u9519\u95f4\u8ddd2nm\uff09\u751f\u957f\u7684\u8d85\u6676\u683c\u7684ADF-STEM\u56fe\u50cf\u3002 \u6240\u6709\u7684\u84dd\u8272\u865a\u7ebf\u8868\u793a\u539f\u59cb\u5f2f\u66f2\u6676\u754c\u7684\u4f4d\u7f6e\u3002 \u4f4d\u9519\u5411\u4e0d\u540c\u65b9\u5411\u8fc1\u79fb\uff08\u7531\u7eff\u8272\u7bad\u5934\u8868\u793a\uff09\uff0c\u4ece\u800c\u5f62\u6210\u79fb\u52a8\u7684\u76f4\u7ebf\u6676\u754c\uff1b<\/p>\n c\uff0c\u653e\u5927\u7684ADF-STEM\u56fe\u50cf\uff0c\u5176\u4e2d\u4e00\u4e2a\u76f8\u540c\u7684\u4f4d\u9519\u7531\u201cT\u201d\u6807\u8bb0\u3002 d-g\uff0c\u56fe\u4e2dc\u7684GPA\uff0c\u8bf4\u660e\u4f4d\u9519\u5728\u8fc1\u79fb\u8fc7\u7a0b\u4e2d\u4fdd\u6301\u5176\u5468\u671f\u6027\u548c\u53d6\u5411\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u4f5c\u8005\u63d0\u51fa\u4e86\u4e00\u79cd\u65e0\u9519\u4f4d\u4e00\u7ef4\u901a\u9053\u5408\u6210\u7684\u7b56\u7565\uff0c\u4e14\u4e3a\u5176\u4ed6\u4e8c\u7ef4\u6750\u6599\u63d0\u4f9b\u4e86\u4e00\u5957\u901a\u7528\u7684\u641c\u7d22\u6807\u51c6\uff1a\u9996\u5148\uff0c\u5019\u9009\u6750\u6599\u9700\u8981\u4f4d\u9519\u6e90\uff0c\u5982\u4f4e\u89d2\u5ea6\u6676\u754c\u6216\u6676\u683c\u5931\u914d\u7684\u5f02\u8d28\u754c\u9762\u3002\u5176\u6b21\uff0c\u867d\u7136\u4f4d\u9519\u5141\u8bb8\u66f4\u5bb9\u6613\u5730\u63d2\u5165\u548c\u4ea4\u6362\u539f\u5b50\uff0c\u4f46\u66ff\u4ee3\u7269\u9700\u8981\u5728\u80fd\u91cf\u4e0a\u662f\u6709\u5229\u7684\u3002 \u6587\u732e\u94fe\u63a5\uff1aSub-nanometre channels embedded in two-dimensional materials. <\/a><\/strong>\uff08Nat. Mater., 2017, DOI: 10.1038\/NMAT5038\uff09<\/p>\n \u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u7eb3\u7c73\u5b66\u672f\u7ec4Jing\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u7f16\u8f91\u6574\u7406\uff0c\u00a0\u70b9\u6211\u52a0\u5165\u6750\u6599\u4eba\u7f16\u8f91\u90e8<\/a>\u3002<\/p>\n<\/p>\n
\n b<\/strong>\uff0cc<\/strong>\uff0c\u539f\u5b50\u5206\u8fa8\u7387ADF-STEM\u56fe\u50cf\u91cd\u53e0\u4e0e\u4ed6\u4eec\u7684\u03b5xx<\/sub>\u5e94\u53d8\u56fe\uff08\u53c2\u7167\u56fe2\u8be6\u7ec6\u4ecb\u7ecd\uff09\u786e\u5b9a\u6240\u8ff0\u5468\u671f\u6027\u7684\u4f4d\u9519\u5728MoS2<\/sub>\u548cWSE2<\/sub>\uff08b\uff09\u548c\u4e00\u7ef4\u4fe1\u9053\u7684\u901a\u8fc7\u5316\u5b66\u9a71\u52a8\u7684\u8fc1\u79fb\u521b\u5efa\u7684\u63a5\u53e3 \uff08c\uff09\uff0c\u5e94\u53d8\u56fe\u662f\u6307WSe2<\/sub>\u6676\u683c\u3002<\/p>\n<\/p>\n
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\n \u6676\u683c\u5931\u914d\u548c\u4f4d\u79fb\u51c6\u5219\u5141\u8bb8\u6211\u4eec\u9884\u6d4b\u4e00\u7ef4\u901a\u9053\u5f62\u6210\u7684\u5019\u9009\u7cfb\u7edf\uff0c\u5e76\u4e14\u8fd8\u63d0\u4f9b\u4e86\u901a\u8fc7\u6539\u53d82D\u4e3b\u4f53\u6765\u8bbe\u8ba1\u4e00\u7ef4\u901a\u9053\u4e2d\u7684\u5e94\u53d8\u7684\u65b9\u6cd5\u3002<\/p>\n