{"id":183774,"date":"2019-08-21T06:30:12","date_gmt":"2019-08-20T22:30:12","guid":{"rendered":"\/\/m.iemloyee.com\/?p=183774"},"modified":"2021-10-12T14:41:34","modified_gmt":"2021-10-12T06:41:34","slug":"%e3%80%90%e5%b7%b2%e6%a0%a1%e7%a8%bf%e3%80%91%e5%8d%8e%e4%b8%ad%e7%a7%91%e6%8a%80%e5%a4%a7%e5%ad%a6nat-commun-%e9%80%9a%e8%bf%87%e5%b1%80%e9%83%a8%e9%93%81%e7%94%b5%e6%9e%81%e5%8c%96%e5%ae%9e","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=183774","title":{"rendered":"\u534e\u4e2d\u79d1\u6280\u5927\u5b66Nat. Commun.:\u901a\u8fc7\u5c40\u90e8\u94c1\u7535\u6781\u5316\u5b9e\u73b0\u53ef\u91cd\u6784\u7684\u4e8c\u7ef4\u5149\u7535\u5668\u4ef6"},"content":{"rendered":"
\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n \u539f\u5b50\u7ea7\u539a\u5ea6\u7684\u4e8c\u7ef4\uff082D\uff09\u534a\u5bfc\u4f53\u7531\u4e8e\u91cf\u5b50\u9650\u57df\u6548\u5e94\u800c\u5177\u6709\u7279\u6b8a\u7684\u5149\u7535\u7279\u6027\uff0c\u6781\u8584\u7684\u539a\u5ea6\u4e5f\u4f7f\u5b83\u4eec\u7684\u6027\u8d28\u6781\u6613\u53d7\u5230\u5916\u90e8\u73af\u5883\u3001\u7535\u573a\u6761\u4ef6\u7b49\u7684\u8c03\u5236\uff0c\u56e0\u800c\u5728\u5404\u79cd\u529f\u80fd\u7535\u5b50\u5668\u4ef6\u65b9\u9762\u53d7\u5230\u4e86\u5e7f\u6cdb\u7684\u5173\u6ce8\u3002\u901a\u8fc7\u9ad8\u03ba<\/em>\u4ecb\u8d28\u6750\u6599\u3001\u79bb\u5b50\u6db2\u4f53\u6216\u51dd\u80f6\u4ee5\u53ca\u94c1\u7535\uff08FE\uff09\u6781\u5316\u7b49\u8fdb\u884c\u8c03\u5236\uff0c\u4e8c\u7ef4\u534a\u5bfc\u4f53\u53ef\u4ece\u534a\u5bfc\u4f53\u8c03\u8282\u5230\u91d1\u5c5e\u6001\u6216\u7edd\u7f18\u4f53\uff0c\u5e94\u7528\u4e8e\u8bf8\u5982\u6676\u4f53\u7ba1\u3001\u903b\u8f91\u53cd\u76f8\u5668\u3001\u5b58\u50a8\u5668\u3001\u53d1\u5149\u4e8c\u6781\u7ba1\u548c\u5149\u7535\u63a2\u6d4b\u5668\u7b49\u5177\u6709\u4e0d\u540c\u7ed3\u6784\u548c\u529f\u80fd\u7684\u5668\u4ef6\u4e2d\u3002\u57fa\u4e8e\u4e8c\u7ef4\u6750\u6599\u7684\u7684\u53ef\u8c03\u5236\u7279\u6027\uff0c\u53d1\u5c55\u53ef\u91cd\u6784\u7684\u7535\u5b50\u5668\u4ef6\u4f7f\u5176\u6ee1\u8db3\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u9700\u6c42\uff0c\u6709\u7740\u8bf1\u4eba\u7684\u524d\u666f\u3002\u94c1\u7535\u6750\u6599\u5177\u6709\u53ef\u91cd\u590d\u7ffb\u8f6c\u7684\u5269\u4f59\u6781\u5316\uff0c\u5c06\u5176\u4e0e\u4e8c\u7ef4\u534a\u5bfc\u4f53\u8026\u5408\u53ef\u5bf9\u4e8c\u7ef4\u534a\u5bfc\u4f53\u5f62\u6210\u53ef\u64e6\u5199\u7684\u975e\u6613\u5931\u8c03\u5236\u3002\u4e3a\u6b64\uff0c\u8fd1\u5e74\u6765\uff0c\u94c1\u7535\u6750\u6599\u4e0e\u4e8c\u7ef4\u6750\u6599\u5f62\u6210\u7684\u590d\u5408\u529f\u80fd\u5668\u4ef6\u53d7\u5230\u4e86\u8d8a\u6765\u8d8a\u591a\u7684\u5173\u6ce8\u3002<\/p>\n \u6839\u636e\u94c1\u7535\u6750\u6599\u7684\u5269\u4f59\u6781\u5316\u5f3a\u5ea6\uff0810-100 \u03bcC\/cm2<\/sup>\uff09\uff0c\u7406\u8bba\u4e0a\u53ef\u5b9e\u73b0\u5bf9\u4e8c\u7ef4\u6750\u6599\u9ad8\u8fbe1013<\/sup>cm-2<\/sup>\u7684\u7535\u5b50\u6216\u7a7a\u7a74\u63ba\u6742\u3002\u7136\u800c\uff0c\u6b64\u524d\u7814\u7a76\u4e2d\u57fa\u4e8e\u94c1\u7535\u5269\u4f59\u6781\u5316\u5bf9\u4e8c\u7ef4\u534a\u5bfc\u4f53\u7684\u8c03\u63a7\u7a0b\u5ea6\u4ecd\u7136\u975e\u5e38\u6709\u9650\uff0c\u5c1a\u672a\u5b9e\u73b0\u5bf92D\u6750\u6599\u53ef\u63a7\u7684\u7535\u5b50\uff08n\u578b\uff09\u548c\u7a7a\u7a74\uff08p\u578b\uff09\u63ba\u6742\uff0c\u800c\u8fd9\u5219\u662f\u591a\u79cd\u5149\u7535\u5b50\u5668\u4ef6\u4f18\u5316\u6784\u7b51\u5fc5\u4e0d\u53ef\u5c11\u7684\u6761\u4ef6\u3002<\/p>\n \u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n \u8fd1\u65e5\uff0c\u534e\u4e2d\u79d1\u6280\u5927\u5b66\u7fdf\u5929\u4f51\u6559\u6388<\/strong>\u4e0e\u8bf8\u845b\u798f\u4f1f\u526f\u6559\u6388<\/strong>\u62a5\u9053\u4e86\u57fa\u4e8e\u94c1\u7535\u6781\u5316\u56fe\u6848\u5b9a\u5236\u7684\u4e8c\u786b\u5316\u94bc\uff08MoS2<\/sub>\uff09\u5149\u7535\u5b50\u5668\u4ef6\u7814\u7a76\uff0c\u5229\u7528\u6781\u5316\u4ea7\u751f\u7684\u5c40\u90e8\u7535\u5b50\u548c\u7a7a\u7a74\u63ba\u6742\u5b9e\u73b0\u4e86pn\u7ed3\u578b\u5149\u7535\u4e8c\u6781\u7ba1\u548cnpn\u7ed3\u578b\u53cc\u6781\u578b\u5149\u7535\u6676\u4f53\u7ba1\uff0c\u5206\u522b\u7528\u4e8e\u81ea\u9a71\u52a8\u5f0f\u6216\u9ad8\u7075\u654f\u5f0f\u3001\u5feb\u901f\u54cd\u5e94\u5149\u7535\u63a2\u6d4b\u3002\u7814\u7a76\u53d1\u73b0\uff0c\u9762\u5185pn\u4e8c\u6781\u7ba1\u53ef\u81ea\u53d1\u5206\u79bb\u7ea612%\u7684\u5149\u751f\u7535\u5b50\u548c\u7a7a\u7a74\uff0c\u8fdb\u884c\u81ea\u9a71\u52a8\u5f0f\u63a2\u6d4b\u3002\u800c\u5f53\u91cd\u65b0\u6781\u5316\u4e3a\u53cc\u6781\u578b\u5149\u7535\u6676\u4f53\u7ba1\u65f6\uff0c\u5668\u4ef6\u53ef\u83b7\u5f97\u7ea61000\u500d\u7684\u589e\u76ca\uff0c\u4f7f\u5176\u54cd\u5e94\u5ea6\u8fbe\u523012 A W-1<\/sup>\uff0c\u83b7\u5f97\u8d85\u8fc71013<\/sup>\u743c\u65af\u63a2\u6d4b\u5ea6\u7684\u540c\u65f6\u4fdd\u630120 \u03bcs\u5185\u7684\u5feb\u54cd\u5e94\u901f\u5ea6\u3002\u8be5\u6210\u679c\u4ee5\u9898\u4e3a”Reconfigurable two-dimensional optoelectronic devices enabled by local ferroelectric polarization<\/strong>“\u8fd1\u671f\u53d1\u8868\u5728\u56fd\u9645\u8457\u540d\u671f\u520aNature Communications<\/strong>\u4e0a\u3002<\/p>\n \u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u56fe1 \u57fa\u4e8e\u94c1\u7535\u6781\u5316\u5b9e\u73b0MoS2<\/sub>\u7684p\u3001n\u578b\u63ba\u6742\u8f6c\u53d8<\/strong><\/p>\n (a) \u4ee5AFM\u9488\u5c16\u4f5c\u4e3a\u6781\u5316\u7535\u6781\u5bf9\u94c1\u7535\u5171\u805a\u7269\u8026\u5408\u7684MoS2<\/sub>\u5668\u4ef6\u8fdb\u884c\u6781\u5316\uff1b<\/p>\n (b) \u94c1\u7535\u5171\u805a\u7269\u4e2d\u7684P\u2191\u6781\u5316\u4e0eMoS2<\/sub>\u5185\u8f7d\u6d41\u5b50\u95f4\u7684\u8026\u5408\u4f7f\u5176\u754c\u9762\u9644\u8fd1\u7d2f\u79ef\u7a7a\u7a74\uff1b<\/p>\n (c) MoS2<\/sub>\u8f6c\u79fb\u5230\u9884\u5236\u768410nm Cr\/Au\u6e90\u6f0f\u7535\u6781\u540e\u7684AFM\u56fe\u50cf\uff0c\u4ece\u800c\u5236\u4f5c\u5e95\u7535\u6781\u63a5\u89e6\u7684\u5668\u4ef6\uff1b<\/p>\n (d) \u5728\u5e95\u7535\u6781\u63a5\u89e6\u548c\u9876\u7535\u6781\u63a5\u89e6\u4e0b\uff0c\u6539\u53d8\u6781\u5316\u7535\u538b\uff08V<\/em>p<\/sub>\uff09\u65f6MoS2<\/sub>\u7535\u5bfc\u7684\u53d8\u5316\u56de\u6ede\u3002<\/p>\n \u56fe2 \u4e0d\u540c\u94c1\u7535\u6781\u5316\u72b6\u6001\u4e0b\u7535\u5b50\uff08n\uff09\u548c\u7a7a\u7a74\uff08p\uff09\u63ba\u6742\u4e0bMoS2<\/sub>\u7684\u573a\u6548\u5e94\u7279\u6027<\/strong><\/p>\n (a) \u6052\u5b9a\u6e90\u6f0f\u504f\u538bV<\/em>ds<\/sub> = 1 V\u4e0bSi\u80cc\u6805\u8c03\u5236\u7684MoS2<\/sub>\u8f6c\u79fb\u7279\u6027\u66f2\u7ebf\uff0c\u8bf4\u660eMoS2<\/sub>\u5728P\u2191\u6781\u5316\u4e0b\u7531\u521d\u59cbn\u578b\u8f6c\u53d8\u4e3ap\u578b\u534a\u5bfc\u4f53\uff1b<\/p>\n (b) \u4ece\u573a\u6548\u5e94\u6d4b\u8bd5\u4e2d\u63d0\u53d6\u7684\u7535\u5b50\u548c\u7a7a\u7a74\u8fc1\u79fb\u7387\u3002<\/p>\n \u56fe3 \u57fa\u4e8e\u5c40\u57df\u94c1\u7535\u6781\u5316\u56fe\u6848\u8c03\u5236\u7684MoS2<\/sub> pn\u7ed3\u53ca\u5176\u5149\u7535\u7279\u6027<\/strong><\/p>\n (a) \u57fa\u4e8eAFM\u9488\u5c16\u5b9e\u73b0\u94c1\u7535\u6781\u5316\u56fe\u6848\u7684\u539f\u7406\u793a\u610f\u56fe\uff1b<\/p>\n (b) \u5728\u5668\u4ef6\u533a\u57df\u5185\u6784\u7b51\u7684\u94c1\u7535\u6781\u5316\u56fe\u6848\u5728\u538b\u7535\u529b\u663e\u5fae\u955c\uff08PFM\uff09\u4e0b\u7684\u76f8\u4f4d\u56fe\uff1b<\/p>\n (c) \u4e0d\u540c\u6781\u5316\u56fe\u6848\u4e0b\uff08\u6574\u4f53p\u578b\u548cn\u578b\u63ba\u6742\u3001pn\u7ed3\u578b\u63ba\u6742\uff09MoS2<\/sub>\u6c9f\u9053\u7684I-V<\/em>\u7279\u6027\uff1b<\/p>\n (d) 532 nm\u6fc0\u5149\u7167\u5c04\u4e0bMoS2<\/sub> pn\u7ed3\u7684I-V<\/em>\u7279\u6027\uff1b<\/p>\n (e) \u539f\u59cbMoS2<\/sub>\u5149\u7535\u5bfc\u5668\u4ef6\u7684\u6162\u54cd\u5e94\u4e0epn\u7ed3\u578b\u63a2\u6d4b\u5668\u7684\u81ea\u9a71\u52a8\u5f0f\u54cd\u5e94\u5bf9\u6bd4\uff1b<\/p>\n (f) pn\u7ed3\u578b\u63a2\u6d4b\u5668\u5185\u81ea\u9a71\u52a8\u5149\u7535\u6d41\u7684\u7a7a\u95f4\u5206\u5e03\uff0c\u663e\u793a\u5149\u7535\u6d41\u4e3b\u8981\u6765\u81ea\u6c9f\u9053\u4e2d\u5fc3\u7684pn\u7ed3\u533a\u57df\u3002<\/p>\n \u56fe4 \u57fa\u4e8e\u94c1\u7535\u6781\u5316\u56fe\u6848\u5b9e\u73b0\u7684MoS2<\/sub>\u53cc\u6781\u578b\u5149\u7535\u6676\u4f53\u7ba1<\/strong><\/p>\n (a) \u57fa\u4e8e\u94c1\u7535\u6781\u5316\u56fe\u6848\u5236\u5907npn\u53cc\u6781\u578b\u5149\u7535\u6676\u4f53\u7ba1\u7684\u539f\u7406\u793a\u610f\u56fe\uff1b<\/p>\n (b)\u5668\u4ef6\u4e2d\u5b9e\u73b0npn\u5149\u7535\u6676\u4f53\u7ba1\u6240\u7528\u7684\u6781\u5316\u56fe\u6848\u7684\u538b\u7535\u529b\u663e\u5fae\u955c\u76f8\u4f4d\u56fe\uff1b<\/p>\n (c) npn\u5149\u7535\u6676\u4f53\u7ba1\u5728\u504f\u538b\u4e0b\u7684\u80fd\u5e26\u793a\u610f\u56fe\uff1b<\/p>\n (d) npn\u5149\u7535\u6676\u4f53\u7ba1\u5de5\u4f5c\u65f6\u7684\u7b49\u6548\u7535\u8def\u56fe\u3002<\/p>\n \u56fe5 MoS2<\/sub>\u53cc\u6781\u578b\u5149\u7535\u6676\u4f53\u7ba1\u7684\u5149\u7535\u63a2\u6d4b\u6027\u80fd\u8868\u73b0<\/strong><\/p>\n (a)\u4e0d\u540c\u6fc0\u5149\u7167\u5c04\u5f3a\u5ea6\u4e0b\uff0cMoS2 <\/sub>npn\u6676\u4f53\u7ba1\u7684\u5149\u54cd\u5e94\u7279\u6027\uff1b<\/p>\n (b) \u56fa\u5b9a\u96c6\u7535\u6781-\u53d1\u5c04\u6781\u504f\u538bV<\/em>CE<\/sub> = 1 V\u6761\u4ef6\u4e0b\uff0c\u4f7f\u7528Si\u80cc\u6805\u6d4b\u91cf\u7684\u8f6c\u79fb\u66f2\u7ebf\uff1b<\/p>\n (c)\u4e0d\u540c\u5149\u7167\u5f3a\u5ea6\u4e0b\u5668\u4ef6\u7684\u54cd\u5e94\u5ea6\u548c\u9608\u503c\u7535\u538b\u504f\u79fb\u0394<\/em>V<\/em>th<\/sub>\uff1b<\/p>\n (d) V<\/em>CE<\/sub> = 0\u548c1 V\u6761\u4ef6\u4e0bnpn\u53cc\u6781\u5149\u7535\u6676\u4f53\u7ba1\u4e2d\u5149\u7535\u6d41\u7684\u7a7a\u95f4\u5206\u5e03\u56fe\uff1b<\/p>\n (e)\u5149\u7535\u6d41\u5728\u5668\u4ef6\u5185\u7684\u6a2a\u5411\u5206\u5e03\u4e0e\u5668\u4ef6\u7684\u6781\u5316\u56fe\u6848\uff08PFM\u76f8\u4f4d\u56fe\uff09\u5bf9\u6bd4\uff1b<\/p>\n (f) \u6587\u4e2d\u5b9e\u73b0\u7684\u4e0d\u540c\u7c7b\u578bMoS2<\/sub>\u5149\u7535\u5668\u4ef6\u7684\u5149\u7535\u63a2\u6d4b\u6027\u80fd\u53ca\u4e0e\u6587\u732e\u4e2d\u540c\u7c7b\u578b\u5668\u4ef6\u7684\u5bf9\u6bd4\u3002<\/p>\n \u56fe6 \u57fa\u4e8e\u94c1\u7535\u6781\u5316\u6784\u5efa\u7684MoS2<\/sub> \u4e09\u7aefnpn\u53cc\u6781\u6676\u4f53\u7ba1\u53ca\u5176\u8f93\u51fa\u653e\u5927\u7279\u6027<\/strong><\/p>\n (a) \u6784\u7b51\u4e09\u7aef\u5b50\u53cc\u6781\u6676\u4f53\u7ba1\u6240\u4f7f\u7528\u7684\u94c1\u7535\u6781\u5316\u56fe\u6848\u7684PFM\u76f8\u4f4d\u56fe\uff1b<\/p>\n (b) \u4e09\u7aef\u5f0f\u53cc\u6781\u6676\u4f53\u7ba1\u5185\u96c6\u7535\u6781\u7535\u6d41I<\/em>C<\/sub>\u7684\u7535\u6d41\u8d21\u732e\u793a\u610f\u56fe\uff1b<\/p>\n (c) \u6539\u53d8\u57fa\u6781\u8f93\u5165\u7535\u538bV<\/em>BE<\/sub>\u65f6\u6d4b\u91cf\u7684\u4e09\u7aef\u5b50\u53cc\u6781\u6676\u4f53\u7ba1\u7684\u8f93\u51fa\u7279\u6027\uff1b<\/p>\n (d) \u4e0d\u540cV<\/em>BE<\/sub>\u8f93\u5165\u4e0b\u5668\u4ef6\u4e2d\u7684\u96c6\u7535\u6781\u7535\u6d41I<\/em>C<\/sub>\u548c\u57fa\u6781\u7535\u6d41I<\/em>B<\/sub>\uff0c\u96c6\u7535\u6781\u7535\u6d41\u76f8\u5bf9\u4e8e\u8f93\u5165\u57fa\u6781\u7535\u6d41\u53ef\u83b7\u5f97\u5927\u7ea63000\u500d\u7684\u653e\u5927\uff0c\u8bc1\u5b9e\u8be5\u7c7b\u53cc\u6781\u6676\u4f53\u7ba1\u8f83\u9ad8\u7684\u653e\u5927\u589e\u76ca\u3002<\/p>\n \u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n \u672c\u6587\u4e2d\uff0c\u4f5c\u8005\u901a\u8fc7\u4f7f\u7528\u5e95\u7535\u6781\u63a5\u89e6\u6784\u578b\u5b9e\u73b0\u4e86\u57fa\u4e8e\u94c1\u7535\u6781\u5316\u53ef\u63a7\u8c03\u8282\u7684MoS2<\/sub>\u7535\u5b50\u548c\u7a7a\u7a74\u63ba\u6742\uff0c\u5c55\u793a\u4e86\u5229\u7528\u94c1\u7535\u6781\u5316\u53ef\u64e6\u5199\u7279\u6027\u5b9a\u5236\u7684\u4e0d\u540c\u7c7b\u578b\u7684\u5149\u7535\u63a2\u6d4b\u5668\u4ef6\u3002\u901a\u8fc7\u5c06MoS2<\/sub>\u5668\u4ef6\u6781\u5316\u4e3apn\u4e8c\u6781\u7ba1\u548cnpn\u53cc\u6781\u6676\u4f53\u7ba1\u7684\u540c\u8d28\u7ed3\uff0c\u5668\u4ef6\u53ef\u5b9a\u5236\u6210\u65e0\u9700\u6301\u7eed\u5916\u90e8\u6805\u538b\u8c03\u5236\u7684\u5177\u6709\u4f18\u5f02\u81ea\u9a71\u52a8\u63a2\u6d4b\u6216\u9ad8\u589e\u76ca\u3001\u5feb\u901f\u54cd\u5e94\u5f0f\u5149\u7535\u63a2\u6d4b\u5668\u3002\u6b64\u5916\uff0c\u4f5c\u8005\u8fd8\u6307\u51fa\uff0c\u9274\u4e8e\u4e8c\u7ef4\u534a\u5bfc\u4f53\u4ee5\u53ca\u8303\u5fb7\u534e\u5f02\u8d28\u7ed3\u7684\u84ec\u52c3\u53d1\u5c55\uff0c\u57fa\u4e8e\u5c40\u57df\u5316\u7684\u94c1\u7535\u6781\u5316\u6765\u5b9a\u5236\u9ad8\u6027\u80fd\u5149\u7535\u5b50\u5668\u4ef6\u7814\u7a76\u4ecd\u6709\u5de8\u5927\u7684\u63d0\u5347\u7a7a\u95f4\u3002\u672a\u6765\uff0c\u5229\u7528\u9884\u5236\u9876\u6805\u7535\u6781\u56fe\u6848\u6216\u4f7f\u7528\u67d4\u6027\u7535\u5b50\u5370\u8bb0\u65b9\u6cd5\u5236\u5907\u9635\u5217\u5f0f\u5149\u7535\u5b50\u5668\u4ef6\u5927\u6709\u53d1\u5c55\u6f5c\u529b\u3002<\/p>\n
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