{"id":227134,"date":"2021-09-13T06:30:33","date_gmt":"2021-09-12T22:30:33","guid":{"rendered":"\/\/m.iemloyee.com\/?p=227134"},"modified":"2021-09-12T18:44:36","modified_gmt":"2021-09-12T10:44:36","slug":"nature-electronics%ef%bc%9a%e4%ba%8c%e7%bb%b4c3n%e8%83%bd%e5%b8%a6%e8%b0%83%e6%8e%a7%e6%8a%80%e6%9c%af%e5%8a%a0%e9%80%9f%e6%99%ba%e8%83%bd%e7%94%b5%e5%ad%90%e6%97%b6%e4%bb%a3%e7%9a%84%e5%88%b0","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=227134","title":{"rendered":"Nature Electronics\uff1a\u4e8c\u7ef4C3N\u80fd\u5e26\u8c03\u63a7\u6280\u672f\u52a0\u901f\u667a\u80fd\u7535\u5b50\u65f6\u4ee3\u7684\u5230\u6765"},"content":{"rendered":"

\u80cc\u666f\u4ecb\u7ecd<\/b><\/strong><\/p>\n

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

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\u56fe\u6587\u89e3\u6790<\/strong><\/p>\n

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\u56fe1. \u53cc\u5c42C3<\/sub>N\u7684\u5806\u579b\u548c\u5e26\u9699\u3002<\/p>\n

a, AA, AA ‘\uff0cAB, AB ‘\u53e0\u52a0\u7684C3<\/sub>N\u5355\u5c42\u548cC3<\/sub>N\u53cc\u5c42\u793a\u610f\u56fe\u3002<\/p>\n

b, \u626d\u66f2\u89d2\u4e3a\u03b8\u7684C3<\/sub>N\u53cc\u5206\u5b50\u5c42\u7684\u539f\u7406\u56fe\u3002<\/p>\n

c, \u53cc\u5c42C3<\/sub>N\u7684\u7ed3\u5408\u80fd(\u9ed1\u8272\u65b9\u5757)\u548c\u5e26\u9699(\u7ea2\u8272\u5706\u5708)\u4e0e\u626d\u66f2\u89d2\u7684\u5173\u7cfb\u3002<\/p>\n

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\u56fe2. AA, AA ‘\uff0c AB, AB ‘\u5806\u579bC3<\/sub>N\u53cc\u5c42\u7684\u80fd\u5e26\u7ed3\u6784\u548c\u90e8\u5206\u7535\u8377\u5206\u5e03\u3002<\/p>\n

a, AA, AA ‘\uff0cAB\u548cAB ‘\u5806\u579b\u7684\u5355\u5c42\u548c\u53cc\u5c42C3N\u7684\u80fd\u5e26\u7ed3\u6784\u548cDOS\u3002<\/p>\n

b, AA, AA ‘\uff0cAB\u548cAB ‘\u5806\u579b\u7684C3N\u5355\u5c42\u548c\u53cc\u5c42\u7684CBM\u548cVBM\u7684\u90e8\u5206\u7535\u8377\u5bc6\u5ea6(\u4fef\u89c6\u56fe)\u3002<\/p>\n

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\u56fe3. C3<\/sub>N\u53cc\u5c42\u7ed3\u6784<\/p>\n

a,b, HAADF-STEM\u56fe\u50cf(a)\u548cAA ‘\u5806\u579b\u7684C3<\/sub>N\u53cc\u5c42\u51e0\u4f55\u7ed3\u6784(b)\u3002<\/p>\n

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b, AB ‘\u53e0\u52a0\u7684C3<\/sub>N\u53cc\u5c42\u5728\u4e0d\u540c\u56fa\u5b9a\u5e95\u6805\u7535\u538b(Vb<\/sub>)\u4e0b\u7684\u7535\u963b\u968f\u9876\u6805\u7535\u538b(Vt<\/sub>)\u53d8\u5316\u7684\u5173\u7cfb\u3002<\/p>\n

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d, \u5728\u4e0d\u540c\u7684\u5e94\u7528\u4f4d\u79fb\u573aDAV<\/sub>\uff0cC3<\/sub>N\u53cc\u5c42\u5728CNPs (\u03b4D = 0)\u5904\u7684gate-induced\u5438\u6536\u5149\u8c31\u3002<\/p>\n

\u5c0f\u7ed3<\/b><\/strong><\/p>\n

C3<\/sub>N\u53cc\u5c42\u7684\u5e26\u9699\u53ef\u4ee5\u901a\u8fc7\u63a7\u5236\u53e0\u52a0\u987a\u5e8f\u6216\u5916\u52a0\u7535\u573a\u7684\u4f5c\u7528\u800c\u5f97\u5230\u6709\u6548\u7684\u8c03\u5236\u3002\u5229\u7528DFT\u8ba1\u7b97\u65b9\u6cd5\uff0c\u6bd4\u8f83\u4e86\u5177\u67094\u79cd\u5bf9\u79f0(AA, AA’\uff0cAB\u548cAB’)\u53e0\u52a0\u6784\u578b\u548c5\u79cd\u4e0d\u540c\u626d\u66f2\u89d2\u5ea6\u7684\u975e\u5bf9\u79f0\u7ed3\u6784\u7684\u5355\u5c42C3<\/sub>N\u548c\u53cc\u5c42C3<\/sub>N\u7684\u51e0\u4f55\u7ed3\u6784\u3001\u80fd\u91cf\u7a33\u5b9a\u6027\u548c\u7535\u5b50\u6027\u8d28\u3002\u8ba1\u7b97\u548c\u5b9e\u9a8c\u8868\u660e\uff0cAA’\u548cAB’\u5806\u579b\u7684\u53cc\u5c42\u6bd4\u5206\u79bb\u7684\u5355\u5c42\u548cAA\u548cAB\u5806\u579b\u7684\u53cc\u5c42\u5728\u80fd\u91cf\u4e0a\u66f4\u6709\u5229\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0cAA’ (0.30 eV)\u5806\u579b\u7684C3<\/sub>N\u53cc\u5c42\u7684\u7981\u5e26\u6bd4AB’ (0.89 eV)\u5c0f\u5f97\u591a\uff0c\u4e24\u8005\u90fd\u6bd4\u5355\u5c42(1.23 eV)\u5c0f\u5f97\u591a\u3002VBM\u548cCBM\u4e2dpz<\/sub>\u8f68\u9053\u7684\u5c42\u95f4\u5f3a\u8026\u5408\u89e3\u91ca\u4e86\u5bfc\u81f4\u7981\u5e26\u51cf\u5c0f\u7684\u7269\u7406\u673a\u5236\u3002\u7406\u8bba\u5206\u6790\u8fd8\u8868\u660e\uff0c\u5916\u52a0\u5782\u76f4\u7535\u573a\u4f7fAB’\u5806\u579b\u7684C3<\/sub>N\u5c42\u7684\u5e26\u9699\u51cf\u5c0f\u3002\u5728FET\u5668\u4ef6\u4e2d\u5bf9C3<\/sub>N\u53cc\u5c42\u6837\u54c1\u8fdb\u884c\u4e86\u5b9e\u9a8c\uff0c\u5e76\u5229\u7528\u7ea2\u5916\u663e\u5fae\u5149\u8c31\u6280\u672f\u8bc1\u5b9e\u4e86C3<\/sub>N\u4e2d\u53e0\u52a0\u8bf1\u5bfc\u548c\u7535\u573a\u8bf1\u5bfc\u7684\u5e26\u9699\u8c03\u5236\u3002\u57281.4 V nm\u22121<\/sup>\u7684\u5916\u52a0\u7535\u573a\u4f5c\u7528\u4e0b\uff0cAB’\u5c42\u7684\u5e26\u9699\u8c03\u5236\u53d8\u5316\u4e3a0.6 eV\u3002\u5e7f\u6cdb\u53ef\u8c03\u8c10\u7684\u5e26\u9699\uff0c\u4ee5\u53ca\u9ad8\u7a33\u5b9a\u6027\u3001\u5927\u8f7d\u6d41\u5b50\u8fc1\u79fb\u7387\u548c\u9ad8\u5f00\/\u5173\u6bd4\u7684\u7ec4\u5408\uff0c\u4f7fC3<\/sub>N\u53cc\u5c42\u6210\u4e3a\u78b3\u57faFET\u4ee5\u53ca\u5176\u4ed6\u7535\u5b50\u548c\u5149\u7535\u5668\u4ef6\u7684\u6709\u524d\u9014\u7684\u6750\u6599\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aBandgap engineering of two-dimensional C3N bilayers\uff0cNature Electronics\uff0c<\/u>2021\uff0cDOI\uff1a<\/u>10.1038\/s41928-021-00602-z.<\/u><\/a><\/p>\n

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