{"id":87409,"date":"2017-06-23T06:30:47","date_gmt":"2017-06-22T22:30:47","guid":{"rendered":"\/\/m.iemloyee.com\/?p=87409"},"modified":"2017-06-21T18:34:06","modified_gmt":"2017-06-21T10:34:06","slug":"nature%e5%ad%90%e5%88%8a%e6%9c%80%e6%96%b0%e7%bb%bc%e8%bf%b0%ef%bc%9a2d%e8%bf%87%e6%b8%a1%e9%87%91%e5%b1%9e%e7%a1%ab%e5%8c%96%e7%89%a9","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=87409","title":{"rendered":"Nature\u5b50\u520a\u6700\u65b0\u7efc\u8ff0\uff1a2D\u8fc7\u6e21\u91d1\u5c5e\u786b\u5316\u7269"},"content":{"rendered":"

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

\u77f3\u58a8\u70ef\u7684\u53d1\u73b0\u6380\u8d77\u4e862D\u6750\u6599\u7814\u7a76\u7684\u70ed\u6f6e\uff0c\u4f46\u662f\u77f3\u58a8\u70ef\u7684\u96f6\u5e26\u9699\u4e25\u91cd\u5236\u7ea6\u4e86\u5176\u5728\u67d0\u4e9b\u9886\u57df\u7684\u5e94\u7528\u3002\u4ee5MoS2<\/sub>\u4e3a\u4ee3\u8868\u76842D\u8fc7\u6e21\u91d1\u5c5e\u786b\u5316\u7269(TMDCs)\u7531\u4e8e\u5177\u6709\u7279\u6b8a\u7684\u80fd\u5e26\u7ed3\u6784\u3001\u534a\u5bfc\u4f53\u6216\u8d85\u5bfc\u6027\u8d28\u4ee5\u53ca\u4f18\u79c0\u7684\u673a\u68b0\u6027\u80fd\u7b49\uff0c\u5728\u7eb3\u7c73\u7535\u5b50\u5668\u4ef6\u548c\u5149\u7535\u5b50\u5b66\u7b49\u8bf8\u591a\u9886\u57df\u5177\u6709\u5e7f\u9614\u7684\u5e94\u7528\u524d\u666f\uff0c\u5f15\u8d77\u4e86\u5e7f\u5927\u7814\u7a76\u8005\u4eec\u7684\u5174\u8da3\uff0c\u6210\u4e3a\u4e86\u8fd1\u5e74\u6765\u4f4e\u7ef4\u529f\u80fd\u6750\u6599\u9886\u57df\u7814\u7a76\u7684\u70ed\u70b9\u3002<\/p>\n

\u8fd1\u65e5\uff0c\u745e\u58eb\u6d1b\u6851\u8054\u90a6\u7406\u5de5\u5b66\u9662<\/b>(EPFL)\u7684Andras Kis(<\/b>\u901a\u8baf\u4f5c\u8005<\/b>)<\/b>\u7b49\u4eba\u5e94\u9080\u5728Nature Reviews Materials<\/b>\u4e0a\u53d1\u8868\u4e86\u9898\u4e3a\u201c2D transition metal dichalcogenides<\/b>\u201d\u7684\u7efc\u8ff0\u6587\u7ae0\u3002\u6587\u7ae0\u4e3b\u8981\u5bf9\u8fd1\u5e74\u67652D-TMDCs\u5728\u7ed3\u6784\u3001\u7535\u5b50\u80fd\u5e26\u3001\u6027\u8d28\u3001\u5408\u6210\u65b9\u6cd5\u3001\u534a\u5bfc\u4f53\u5668\u4ef6\u5e94\u7528\u7b49\u65b9\u9762\u53d6\u5f97\u7684\u7814\u7a76\u6210\u679c\u8fdb\u884c\u4e86\u7cfb\u7edf\u6027\u7684\u56de\u987e\uff0c\u6307\u51fa2D-TMDCs\u7814\u7a76\u4ecd\u7136\u5904\u4e8e\u975e\u5e38\u57fa\u7840\u7684\u9636\u6bb5\uff0c\u6709\u5f85\u79d1\u7814\u5de5\u4f5c\u8005\u5927\u91cf\u5353\u6709\u6210\u6548\u7684\u7814\u7a76\u6210\u679c\u6765\u63a8\u52a8\u5176\u5b9e\u9645\u5e94\u7528\u3002<\/p>\n

\"\"<\/p>\n

\u7efc\u8ff0\u603b\u89c8\u56fe<\/strong><\/p>\n

1 \u7b80\u4ecb<\/span><\/strong><\/p>\n

TMDCs\u662f\u5177\u6709MX2<\/sub>\u578b\u7684\u534a\u5bfc\u4f53\uff0cM\u4ee3\u8868\u8fc7\u6e21\u91d1\u5c5e(\u5982Mo\u3001W\u7b49)\uff0cX\u4ee3\u8868\u786b\u65cf\u5143\u7d20(\u5982S\u3001Se\u3001Te)\u3002TMDCs\u7684\u7814\u7a76\u5386\u53f2\u975e\u5e38\u60a0\u4e45\uff0c1923\u5e74Linus Pauling\u5c31\u786e\u5b9a\u4e86\u5176\u7ed3\u6784\uff0c\u52301960s\u5df2\u7ecf\u53d1\u73b0\u4e86\u8d85\u8fc760\u79cdTMDCs\u30021986\u5e74\uff0c\u5355\u5c42\u7684MoS2<\/sub>\u88ab\u9996\u6b21\u5408\u6210\uff0c\u8fdb\u4e00\u6b65\u63a8\u8fdb\u4e862D-TMDCs\u7684\u7814\u7a76\u3002\u4ee5\u5f80\u5173\u4e8eTMDCs\u7684\u7efc\u8ff0\u4e3b\u8981\u96c6\u4e2d\u5728\u5176\u5149\u5b66\u6027\u8d28\u53ca\u5176\u5f02\u8d28\u7ed3\u6784\u548c\u5149\u5b50\u3001\u5149\u7535\u65b9\u9762\u7684\u5e94\u7528\uff1b\u672c\u6587\u5219\u805a\u7126\u4e8e\u5176\u7535\u5b66\u7279\u6027\uff0c\u4ece\u7ed3\u6784\u3001\u7535\u5b50\u80fd\u5e26\u7ed3\u6784\u7b49\u65b9\u9762\u5165\u624b\u9610\u8ff0\u5176\u7535\u5b66\u6027\u8d28\u3002<\/p>\n

2 \u7ed3\u6784<\/span><\/strong><\/p>\n

\u7531\u4e8e\u8fc7\u6e21\u91d1\u5c5e\u539f\u5b50\u914d\u4f4d\u65b9\u5f0f\u7684\u4e0d\u540c\uff0cTMDCs\u5b58\u5728\u591a\u79cd\u7ed3\u6784\u76f8\uff0c\u6700\u5e38\u89c1\u7684\u662f\u4e09\u68f1\u67f1(2H)\u548c\u516b\u9762\u4f53(1T)\u914d\u4f4d\u4e24\u79cd\u3002\u5355\u5c42TMDCs\u7684\u4e0d\u540c\u7ed3\u6784\u4e5f\u53ef\u4ee5\u770b\u6210\u662f3\u4e2a\u539f\u5b50\u5e73\u9762\u5c42(\u786b\u65cf\u5143\u7d20-\u91d1\u5c5e-\u786b\u65cf\u5143\u7d20)\u5806\u53e0\u6b21\u5e8f\u7684\u4e0d\u540c\uff0c2H\u76f8\u5bf9\u5e94ABA\u7684\u5806\u79ef\u65b9\u5f0f\uff0c\u4e0d\u540c\u539f\u5b50\u5c42\u7684\u786b\u65cf\u539f\u5b50\u59cb\u7ec8\u5360\u636e\u76f8\u540c\u7684\u4f4d\u7f6eA\uff0c\u5728\u5782\u76f4\u4e8e\u5c42\u7684\u65b9\u5411\u4e0a\uff0c\u6bcf\u4e2a\u786b\u65cf\u539f\u5b50\u6b63\u597d\u5728\u4e0b\u5c42\u786b\u65cf\u539f\u5b50\u7684\u6b63\u4e0a\u65b9\uff1b\u800c1T\u76f8\u5bf9\u5e94ABC\u7684\u5806\u79ef\u65b9\u5f0f\u3002\u5728\u8fc7\u6e21\u91d1\u5c5e(IV\u3001V\u3001VI\u3001VII\u3001IX\u548cX\u65cf)\u4e0e\u786b\u65cf\u5143\u7d20(S\u3001Se\u548cTe)\u914d\u4f4d\u4e2d\uff0c\u5b83\u4eec\u7684\u70ed\u529b\u5b66\u7a33\u5b9a\u76f8\u662f2H\u62161T\u76f8\u3002\u4e00\u822c\u5f532H\u4e3a\u7a33\u5b9a\u76f8\u65f6\uff0c1T\u4e3a\u4e9a\u7a33\u5b9a\u76f8\uff1b1T\u4e3a\u7a33\u5b9a\u76f8\u65f6\u52192H\u591a\u4e3a\u4e9a\u7a33\u5b9a\u76f8\u3002\u4e0d\u8fc7WTe2<\/sub>\u662f\u4e2a\u4f8b\u5916\uff0c\u5176\u5ba4\u6e29\u4e0b\u7684\u7a33\u5b9a\u76f8\u662f\u6b63\u4ea41Td<\/sub>\u76f8\u3002\u5bf9\u4e8e\u591a\u5c42\u548c\u5757\u72b6TMDCs\u6837\u54c1\uff0c\u5176\u7ed3\u6784\u4e00\u822c\u7528\u5355\u5c42TMDCs\u7684\u5806\u53e0\u7ed3\u6784\u6765\u63cf\u8ff0\uff0c\u56e0\u4e3a\u53ef\u80fd\u5b58\u5728\u7578\u53d8\u964d\u4f4e\u5176\u5468\u671f\u6027\u3002\u8fd9\u4e9b\u7578\u53d8\u5982\u679c\u5341\u5206\u663e\u8457\uff0c\u5219\u4f1a\u5f15\u8d77\u91d1\u5c5e-\u91d1\u5c5e\u952e\u7684\u5f62\u6210\uff0c\u53ef\u80fd\u5bfc\u81f4\u7b2cVI\u65cfTMDCs\u76841T\u7ed3\u6784\u76f8\u8f6c\u53d8\u4e3a1T\u2019\u76f8\uff1b\u5982\u679c\u662f\u8f83\u5f31\u7684\u6676\u683c\u7578\u53d8\uff0c\u5219\u4f1a\u5bfc\u81f4\u7535\u8377\u5bc6\u5ea6\u6ce2\u76f8\u7684\u5f62\u6210\u3002<\/p>\n

\"\"<\/p>\n

\u56fe1 TMDCs\u7684\u7ed3\u6784\u548c\u7535\u5b50\u7279\u6027<\/strong><\/p>\n

3 \u7535\u5b50\u80fd\u5e26\u7ed3\u6784<\/strong><\/span><\/p>\n

\u7531\u4e8eTMDCs\u7684\u5316\u5b66\u7ec4\u6210\u548c\u7ed3\u6784\u76f8\u7684\u591a\u6837\u6027\uff0c\u4f7f\u5f97\u5176\u65e0\u8bba\u662f\u4ece\u80fd\u5e26\u7ed3\u6784\u7279\u70b9(\u91d1\u5c5e\u6027\u548c\u7edd\u7f18\u6027)\u8fd8\u662f\u76f8\u5173\u76f8\u548c\u62d3\u6251\u76f8\u7684\u51fa\u73b0\u65b9\u9762\u90fd\u8868\u73b0\u51fa\u4e86\u4e30\u5bcc\u7684\u7535\u5b66\u7279\u6027\u3002\u4e0b\u9762\u4e3b\u8981\u4ee5\u7b2cVI\u65cf\u8fc7\u6e21\u91d1\u5c5eMo\u3001W\u4e0eS\u3001Se\u7ec4\u6210\u7684TMDCs\u4e3a\u4f8b\u8fdb\u884c\u9610\u91ca\u3002MoS2<\/sub>\u3001MoSe2<\/sub>\u3001WS2<\/sub>\u548cWSe2<\/sub>\u7684\u70ed\u529b\u5b66\u7a33\u5b9a\u76f8\u662f2H\u76f8\uff0c\u5747\u5177\u6709\u534a\u5bfc\u4f53\u7279\u6027\uff0c\u56e0\u6b64\u53ef\u7528\u4f5c\u7535\u5b50\u5668\u4ef6\u3002\u6839\u636e\u7b2c\u4e00\u6027\u539f\u7406(\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba)\u8ba1\u7b97\uff0c2H-MoS2<\/sub>\u7684\u80fd\u5e26\u7ed3\u6784\u6f14\u53d8\u662f\u4f9d\u8d56\u4e8e\u5c42\u6570\u7684\u3002\u968f\u7740\u539a\u5ea6\u7684\u51cf\u5c0f\uff0c\u4ef7\u5e26\u548c\u5bfc\u5e26\u7684\u8fb9\u7f18\u4f4d\u7f6e\u4f1a\u53d1\u751f\u53d8\u5316\uff0c\u4f7f\u5f97\u5757\u4f53\u72b6\u534a\u5bfc\u4f53\u6750\u6599\u7684\u95f4\u63a5\u5e26\u9699\u8f6c\u53d8\u4e3a\u5355\u5c42\u534a\u5bfc\u4f53\u6750\u6599\u7684\u76f4\u63a5\u5e26\u9699\u3002\u5757\u72b6\u548c\u5355\u5c42\u76842H-MoS2<\/sub>\u7684\u5e26\u9699\u8ba1\u7b97\u503c\u5206\u522b\u4e3a0.88\u548c1.71eV\uff0c\u800c\u5b9e\u9a8c\u6d4b\u5f97\u5355\u5c42\u7684\u5e26\u9699\u4e3a2.16eV\u3002\u66f4\u4e3a\u91cd\u8981\u7684\u662f\u5176\u4ef7\u5e26\u6700\u5927\u503c\u548c\u5bfc\u5e26\u6700\u5c0f\u503c\u5206\u522b\u5904\u4e8e\u9ad8\u5bf9\u79f0\u7684\u4e0d\u7b49\u4ef7K\u548cK\u2019\u70b9\uff0c\u5bf9\u5e94\u516d\u8fb9\u5f62\u5e03\u91cc\u6e0a\u533a\u7684\u89d2\u3002\u8be5\u6027\u8d28\u662f\u5355\u5c422H-MoS2<\/sub>(\u548c\u5176\u4ed6\u7b2cVI\u65cf\u5355\u5c422H-TMDCs)\u548c\u77f3\u58a8\u70ef\u7684\u901a\u6027\uff0c\u4f7f\u5f97\u5b83\u4eec\u8868\u73b0\u51fa\u201c\u8c37\u201d\u76f8\u5173\u7684\u7269\u7406\u73b0\u8c61\uff0c\u5728\u8c37\u7535\u5b50\u5b66\u65b9\u9762\u5177\u6709\u6f5c\u5728\u5e94\u7528\u3002<\/p>\n

2H-TMDCs\u7684\u53e6\u4e00\u4e2a\u7279\u6027\u662f\u5176\u7f3a\u4e4f\u53cd\u6f14\u5bf9\u79f0\u6027\uff0c\u56e0\u6b64\u81ea\u65cb-\u8f68\u9053\u8026\u5408\u4f1a\u9020\u6210\u7535\u5b50\u80fd\u5e26\u7684\u5288\u88c2\uff0c\u7279\u522b\u662f\u5728\u4ef7\u5e26\u4e2d\u5c24\u5176\u660e\u663e\u3002\u81ea\u65cb\u5288\u88c2\u503c\u53ef\u4ece\u5355\u5c422H-MoS2<\/sub>\u76840.15eV\u53d8\u5316\u52302H-WSe2<\/sub>\u76840.46eV\uff0c\u8fd9\u662f\u56e0\u4e3a\u81ea\u65cb-\u8f68\u9053\u8026\u5408\u662f\u4e00\u4e2a\u76f8\u5bf9\u6548\u5e94\uff0c\u5bf9\u66f4\u91cd\u7684\u5143\u7d20\u66f4\u660e\u663e\u3002\u5c3d\u7ba1\u81ea\u65cb\u5288\u88c2\u5728\u5bfc\u5e26\u4e2d\u662f\u5448\u6570\u91cf\u7ea7\u7684\u51cf\u5f31\uff0c\u5374\u4e0d\u5bb9\u5ffd\u89c6\u3002\u8fd9\u662f\u56e0\u4e3a\u65f6\u95f4\u53cd\u6f14\u5bf9\u79f0\u6027\u4f7f\u5f97K\u548cK\u2019\u70b9\u5904\u7684\u80fd\u5e26\u81ea\u65cb\u5288\u88c2\u662f\u76f8\u53cd\u7684\uff0c\u80fd\u5e26\u7ed3\u6784\u662f\u4e0e\u5b9e\u9645\u8f7d\u6d41\u5b50\u6d53\u5ea6\u76f8\u5173\u7684\u3002\u4e0a\u8ff0\u6027\u8d28\u662f\u4e0e\u81ea\u65cb-\u8c37\u8026\u5408\u76f8\u5173\u7684\uff0c\u610f\u5473\u7740\u8f7d\u6d41\u5b50\u7684\u8c37\u6781\u5316\u4f1a\u81ea\u4e3b\u8f6c\u53d8\u4e3a\u81ea\u65cb\u6781\u5316\u3002TMDCs\u7684\u7279\u6b8a\u6027\u8d28\u4f7f\u5f97\u5176\u5728\u81ea\u65cb\u7535\u5b50\u5668\u4ef6\u4e2d\u5177\u6709\u6f5c\u5728\u5e94\u7528\u3002<\/p>\n

3.1 \u7535\u8377\u5bc6\u5ea6\u6ce2\u76f8<\/strong><\/p>\n

\u4e00\u7ef4\u91d1\u5c5e\u5728\u4f4e\u6e29\u4e0b\u662f\u4e0d\u7a33\u5b9a\u7684\uff0c\u7531\u4e8e\u6676\u683c\u7578\u53d8\u5bfc\u81f4\u8d39\u7c73\u9762\u4e0e\u5e03\u91cc\u6e0a\u533a\u5957\u8fed\u800c\u6253\u5f00\u4e00\u4e2a\u80fd\u9699\uff0c\u4ece\u800c\u53d1\u751f\u91d1\u5c5e\u5230\u534a\u5bfc\u4f53\u7684\u8f6c\u53d8\uff0c\u540c\u65f6\uff0c\u4f34\u968f\u7740\u6676\u683c\u7578\u53d8\u8fd8\u4f1a\u53d1\u751f\u7535\u5b50\u7535\u8377\u5bc6\u5ea6\u7684\u7a7a\u95f4\u5468\u671f\u6027\u8c03\u5236\uff0c\u5f62\u6210\u7535\u8377\u5bc6\u5ea6\u6ce2(CDW)\u3002CDW\u7684\u7814\u7a76\u4e00\u76f4\u662f\u4f4e\u7ef4\u51dd\u805a\u6001\u7269\u7406\u6700\u91cd\u8981\u7684\u8bfe\u9898\u4e4b\u4e00\u3002\u540e\u6765\u7814\u7a76\u4eba\u5458\u5728\u7b2cV\u65cf\u7684\u5c42\u72b6\u786b\u5316\u7269\u4e2d\u4e5f\u53d1\u73b0\u4e86CDW\u76f8\uff0c\u4f8b\u59821T\u548c2H\u7684TaS2<\/sub>\u3001<\/sub>TaSe2<\/sub>\u4ee5\u53ca2H-NbSe2<\/sub>\uff0c\u800c\u4e14\u5176CDW\u73b0\u8c61\u975e\u5e38\u4e30\u5bcc\u548c\u591a\u6837\uff0c\u4e0e\u6750\u6599\u7684\u5316\u5b66\u7ec4\u6210\u548c\u6676\u4f53\u7ed3\u6784\u9ad8\u5ea6\u76f8\u5173\u3002\u6839\u636e\u5757\u72b6TMDCs\u4e2d\u7684CDW\u7814\u7a76\u7ed3\u679c\uff0c\u5355\u5c42TMDCs\u7684CDW\u6392\u5e8f\u5411\u91cf\u548c\u8f6c\u53d8\u6e29\u5ea6\u5f97\u5230\u4e86\u6781\u5927\u5173\u6ce8\u3002\u7814\u7a76\u8005\u4eec\u901a\u8fc7\u7b2c\u4e00\u6027\u539f\u7406\u8ba1\u7b97\u548c\u5b9e\u9645\u5b9e\u9a8c\u7814\u7a76\u4e86\u5355\u5c422H-NbSe2<\/sub>\u30012H-TaSe2<\/sub>\u548c1T-TiSe2<\/sub>\u7684CDW\u7279\u6027\u3002\u5728TMDCs\u7684CDW\u7814\u7a76\u4e2d\u867d\u7136\u901a\u8fc7\u8d39\u7c73\u9762\u5957\u8fed\u5efa\u7acb\u8d77\u4e86\u4e00\u5957\u7406\u8bba\u57fa\u7840\uff0c\u4f46\u662f\u5176\u9002\u7528\u6027\u5374\u5b58\u5728\u8f83\u5927\u7684\u4e89\u8bba\uff0c\u9700\u8981\u8fdb\u4e00\u6b65\u6df1\u5165\u8ba8\u8bba\u3002<\/p>\n

3.2 \u8d85\u5bfc\u6027<\/strong><\/p>\n

\u4e00\u822c\u6765\u8bf4\uff0c\u5757\u72b6TMDCs\u5728\u5177\u6709CDW\u76f8\u7684\u540c\u65f6\u4e5f\u4f1a\u5177\u6709\u8d85\u5bfc\u6027\u3002\u4e0d\u8fc7\u8d85\u5bfc\u6027\u6bd4CDW\u76f8\u66f4\u5f3a\uff0c\u5b83\u4e0d\u4f9d\u8d56\u4e8e\u8d39\u7c73\u9762\u7684\u5957\u8fed\u3002TMDCs\u7684\u8d85\u5bfc\u6027\u53ef\u4ee5\u662f\u672c\u5f81\u7684\uff0c\u4e5f\u53ef\u4ee5\u662f\u901a\u8fc7\u5316\u5b66\u63ba\u6742\u3001\u9759\u7535\u63ba\u6742\u6216\u65bd\u52a0\u5e94\u529b\u6765\u8bf1\u5bfc\u3002\u5728NbSe2<\/sub>\u3001TaS2<\/sub>\u3001TaSe2<\/sub>\u76842H\u76f8\u4e2d\uff0c\u8d85\u5bfc\u6027\u548cCDW\u76f8\u662f\u5728\u4f4e\u6e29\u4e0b\u5171\u5b58\u7684\uff1b\u57281T\u76f8\u7684TMDCs\u4e2d\uff0c\u4f8b\u5982\u534a\u91d1\u5c5e\u76841T-TiSe2<\/sub>\u30011T-TaS2<\/sub>\uff0c\u8d85\u5bfc\u6027\u51fa\u73b0\u5728CDW\u6b21\u5e8f\u7194\u5316\u540e\uff0c\u5b58\u5728\u4f4e\u6e29\u7578\u53d8\u76f8\u548c\u8d85\u5bfc\u76f8\u7684\u7ade\u4e89\u5173\u7cfb\u3002\u5757\u72b6TMDCs\u4e2d\u7684\u8d85\u5bfc\u6027\u4e5f\u540c\u6837\u5b58\u5728\u4e8e2D\u7684TMDCs\u4e2d\u3002\u6700\u8fd1\uff0c\u5b9e\u9a8c\u8bc1\u5b9e\u4e86\u5355\u5c42\u76842H-NbSe2<\/sub>\u5177\u6709\u672c\u5f81\u8d85\u5bfc\u6027\u3002\u8d85\u5bfc\u6027\u4e5f\u53ef\u4ee5\u5f15\u5165\u52302H-MoS2<\/sub>\u8584\u819c\u4e2d\uff0c\u9759\u7535\u63ba\u6742\u4f7f\u5f97\u8f7d\u6d41\u5b50\u5728\u5916\u5c42\u805a\u96c6\uff0c\u5f62\u6210\u5355\u5c42\u7684\u63ba\u6742\u6837\u54c1\u3002\u57282H-WS2<\/sub>\u30012H-MoSe2<\/sub>\u4e2d\u4e5f\u53ef\u4ee5\u83b7\u5f97\u7c7b\u4f3c\u8d85\u5bfc\u6027\u3002<\/p>\n

3.3 \u62d3\u6251\u76f8<\/strong><\/p>\n

TMDCs\u5177\u6709\u62d3\u6251\u7535\u5b50\u76f8\u4e5f\u5f15\u8d77\u4e86\u7814\u7a76\u8005\u7684\u6781\u5927\u5173\u6ce8\u3002\u6839\u636e\u7406\u8bba\u9884\u6d4b\uff0cTMDCs\u5728\u80fd\u5e26\u7ed3\u6784\u4e0a\u6709\u8bb8\u591a\u7279\u6027\uff0c\u53ef\u4ee5\u5f62\u6210\u91cf\u5b50\u81ea\u65cb\u970d\u5c14\u76f8\u6216\u80052D Z2<\/sub>\u62d3\u6251\u7edd\u7f18\u76f8\uff0c\u4e0d\u8fc7\u8fd8\u9700\u5b9e\u9a8c\u9a8c\u8bc1\u3002\u57fa\u4e8eTMDCs\u7684\u91cf\u5b50\u81ea\u65cb\u970d\u5c14\u7edd\u7f18\u4f53\u6709\u53ef\u80fd\u5b9e\u73b0\u8fd9\u79cd\u62d3\u6251\u7535\u5b50\u76f8\u7684\u5e94\u7528\uff0c\u800c\u4e14\u6bd4HgTe\/CdTe\u548cInAs\/GaSb\u91cf\u5b50\u9631\u3001\u53cc\u5c42Bi\u7b49\u5176\u4ed6\u91cf\u5b50\u81ea\u65cb\u970d\u5c14\u7edd\u7f18\u4f53\u66f4\u5177\u4f18\u52bf\u3002<\/p>\n

\"\"<\/p>\n

\u56fe2 TMDCs\u7684\u76f8\u5173\u76f8\u548c\u62d3\u6251\u76f8<\/strong><\/p>\n

4 \u5408\u6210<\/span><\/strong><\/p>\n

MoS2<\/sub>\u548cWS2<\/sub>\u53ef\u80fd\u662f\u81ea\u7136\u754c\u4e2d\u4ec5\u5b58\u7684\u5c42\u72b6\u6676\u4f53TMDCs\uff0c\u7b2c\u4e00\u652f\u5355\u5c42MoS2<\/sub>\u9ad8\u6027\u80fd\u6676\u4f53\u7ba1\u5c31\u662f\u4ece\u81ea\u7136\u7684\u8f89\u94bc\u77ff\u4e2d\u83b7\u5f97\u7684\u3002\u5176\u4ed6\u5757\u72b6TMDCs\u591a\u662f\u901a\u8fc7\u5316\u5b66\u6c14\u76f8\u8f6c\u79fb\u7684\u65b9\u6cd5\u5236\u5907\u7684\u3002\u9ad8\u8d28\u91cf\u7684\u5929\u7136\u6216\u5408\u6210\u6676\u4f53\u662f\u5236\u5907\u8584\u7247TMDCs\u7684\u539f\u6599\uff0c\u53ef\u4ee5\u901a\u8fc7\u673a\u68b0\u5265\u79bb\u7684\u65b9\u6cd5\u83b7\u5f97\u5355\u5c42TMDCs\uff0c\u8fd9\u662f\u6700\u521d\u7814\u7a762D-TMDCs\u57fa\u672c\u6027\u8d28\u6700\u5e38\u7528\u7684\u5236\u5907\u65b9\u6cd5\uff0c\u4f46\u662f\u5f88\u96be\u5b9e\u73b0\u91cf\u4ea7\u5236\u5907\uff0c\u800c\u4e14\u83b7\u5f97\u7684\u6837\u54c1\u9762\u79ef\u8f83\u5c0f\u3002\u57fa\u4e8e\u6709\u673a\u6eb6\u5242\u7684\u6db2\u76f8\u5265\u79bb\u662f\u673a\u68b0\u5265\u79bb\u7684\u4e00\u79cd\u66ff\u4ee3\u65b9\u6cd5\uff0c\u53ef\u4ee5\u83b7\u5f97\u53ef\u63a7\u539a\u5ea6\u7684\u8584\u7247\uff0c\u4f46\u662f\u4ecd\u7136\u5b58\u5728\u5f15\u8d77\u76f8\u8f6c\u53d8\u7b49\u95ee\u9898\u3002<\/p>\n

\"\"<\/p>\n

\u56fe3 \u751f\u957f\u8d85\u8584TMDCs\u7684\u65b9\u6cd5<\/strong><\/p>\n

4.1 \u5206\u5b50\u675f\u5916\u5ef6(MBE)<\/strong><\/p>\n

\u7b2c\u4e00\u4e2a\u76f4\u63a5\u751f\u957fTMDCs\u7684\u5927\u89c4\u6a21\u5236\u5907\u65b9\u6cd5\u662f\u5206\u5b50\u675f\u5916\u5ef6\uff0c\u5176\u793a\u610f\u5982\u56fe3a\u6240\u793a\u3002\u901a\u8fc7MBE\u751f\u957f\uff0c\u83b7\u5f97\u4e86MoS2<\/sub>\u3001MoSe2<\/sub>\u3001NbSe2<\/sub>\u4ee5\u53ca\u5f02\u8d28\u7684SnSe2<\/sub>\/WSe2<\/sub>\u3001MoSe2<\/sub>\/Bi2<\/sub>Se3<\/sub>\u7b492D\u7684TMDCs\u3002MBE\u8054\u5408\u626b\u63cf\u96a7\u9053\u663e\u5fae\u955c\u3001\u89d2\u5206\u8fa8\u7387\u5149\u7535\u5b50\u80fd\u8c31\u7b49\u662f\u8fdb\u884c2D-TMDCs\u5236\u5907\u548c\u57fa\u7840\u7814\u7a76\u975e\u5e38\u6709\u7528\u7684\u624b\u6bb5\uff0c\u4e0d\u8fc7\u6240\u83b7\u5f97\u8584\u819c\u7684\u7535\u5b66\u6027\u80fd\u9700\u8981\u8fdb\u4e00\u6b65\u63d0\u5347\u3002<\/p>\n

4.2 \u5316\u5b66\u6c14\u76f8\u6c89\u79ef(CVD)<\/strong><\/p>\n

CVD\u662f\u5408\u6210\u9ad8\u8d28\u91cfTMDCs\u6700\u5b9e\u7528\u7684\u65b9\u6cd5\uff0c\u5b83\u4e0d\u9700\u8981\u8d85\u9ad8\u771f\u7a7a\uff0c\u56e0\u6b64\u662f\u76f8\u5bf9\u5ec9\u4ef7\u548c\u5bb9\u6613\u5b9e\u73b0\u7684\u5de5\u4e1a\u8fc7\u7a0b\u3002\u7b2c\u4e00\u4e2a\u5408\u6210\u7684MoS2<\/sub>\u7684\u62a5\u9053\u5c31\u662f\u901a\u8fc7\u786b\u5316\u9884\u6c89\u79ef\u5728\u57fa\u4f53\u4e0a\u7684Mo\u5c42\u5b9e\u73b0\u7684\uff0c\u4f46\u662f\u539a\u5ea6\u4e0d\u53ef\u63a7\uff0c\u76f4\u52302013\u5e74\u624d\u5728Si\u57fa\u4f53\u4e0a\u83b7\u5f97\u4e86\u5355\u5c42\u7684MoS2<\/sub>\uff0c\u5176CVD\u793a\u610f\u5982\u56fe3b\u6240\u793a\u3002<\/p>\n

4.3 \u6709\u673a\u91d1\u5c5e\u5316\u5b66\u6c14\u76f8\u6c89\u79ef(MOCVD)<\/strong><\/p>\n

MOCVD\u662fCVD\u65b9\u6cd5\u7684\u5ef6\u4f38\uff0c\u662f\u4e00\u79cd\u57fa\u4e8e\u6c14\u76f8\u524d\u9a71\u4f53\u7684\u65b9\u6cd5\uff0c\u572820\u4e16\u7eaa90\u5e74\u4ee3\u9996\u6b21\u7528\u4e8eTMDCs\u7684\u5408\u6210\u3002\u6700\u8fd1\uff0c\u901a\u8fc7\u8be5\u65b9\u6cd5\u5728\u4e0d\u540c\u57fa\u4f53\u4e0a\u6210\u529f\u5236\u5907\u4e86\u5706\u7247\u72b6\u7684MoS2<\/sub>\u548cWS2<\/sub>\uff0c\u800c\u4e14\u5177\u6709\u4f18\u5f02\u7684\u7535\u5b66\u6027\u80fd\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u8fd8\u6709\u5f88\u591a\u5176\u4ed6\u76842D-TMDCs\u4ee5\u53ca\u5f02\u8d28\u7ed3\u6784\u7684TMDCs\u4e5f\u901a\u8fc7CVD\u548cMOCVD\u7684\u65b9\u6cd5\u5f97\u4ee5\u5408\u6210\u3002<\/p>\n

\"\"<\/p>\n

\u56fe4 \u5177\u6709\u6a2a\u5411\u5f02\u8d28\u7ed3\u6784\u76842D-TMDCs\u6837\u54c1<\/strong><\/p>\n

5 \u534a\u5bfc\u4f53\u5668\u4ef6<\/span><\/strong><\/p>\n

2D-TMDCs\u5728\u534a\u5bfc\u4f53\u5668\u4ef6\u4e2d\u7684\u5e94\u7528\u4e3b\u8981\u4f53\u73b0\u5728\u4e09\u4e2a\u65b9\u9762\uff1a\u8f7d\u6d41\u5b50\u7684\u8fc1\u79fb\u7387\u5de5\u7a0b\u3001\u9ad8\u9891\u64cd\u4f5c\u4ee5\u53ca\u5e94\u53d8\u5de5\u7a0b\uff0c\u5982\u56fe5\u30016\u6240\u793a\u3002\u4f46\u662f2D-TMDCs\u7684\u5b9e\u9645\u5e94\u7528\u4ecd\u7136\u8fd8\u5b58\u5728\u8bf8\u591a\u74f6\u9888\uff0c\u9700\u8981\u8fdb\u4e00\u6b65\u7684\u7814\u7a76\u6765\u63a8\u8fdb\u5176\u5e94\u7528\u3002<\/p>\n

\"\"<\/p>\n

\u56fe5 \u57fa\u4e8eTMDC\u7684\u5668\u4ef6\u7684\u8fc1\u79fb\u7387<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe6 \u57fa\u4e8eTMDC\u7684\u5668\u4ef6\u4e2d\u7684\u5e94\u53d8\u5de5\u7a0b<\/strong><\/p>\n

\u3010\u603b\u7ed3\u4e0e\u5c55\u671b\u3011<\/span><\/strong><\/p>\n

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\u6587\u732e\u94fe\u63a5\uff1a<\/strong>2D transition metal dichalcogenides<\/a>\u00a0(Nat. Rev. Mat., 2017, DOI: 10.1038\/natrevmats.2017.33)<\/p>\n

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