{"id":158696,"date":"2018-11-15T06:30:27","date_gmt":"2018-11-14T22:30:27","guid":{"rendered":"\/\/m.iemloyee.com\/?p=158696"},"modified":"2018-11-14T10:44:48","modified_gmt":"2018-11-14T02:44:48","slug":"%e5%8a%a0%e5%b7%9e%e5%a4%a7%e5%ad%a6%e5%92%8c%e6%96%af%e5%9d%a6%e7%a6%8f%e5%a4%a7%e5%ad%a6nat-nanotech-%ef%bc%9a%e8%8c%83%e5%be%b7%e7%93%a6%e5%b0%94%e6%96%af%e5%bc%82%e8%b4%a8%e7%bb%93%e6%9e%84","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=158696","title":{"rendered":"\u52a0\u5dde\u5927\u5b66\u548c\u65af\u5766\u798f\u5927\u5b66Nat. Nanotech.\uff1a\u8303\u5fb7\u74e6\u5c14\u65af\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u8d85\u5feb\u52a8\u529b\u5b66"},"content":{"rendered":"<p><strong>\u3010\u5f15\u8a00\u3011<\/strong><\/p>\n<p>\u8fc7\u6e21\u91d1\u5c5e\u4e8c\u786b\u5316\u7269\uff08TMDC\uff09\u534a\u5bfc\u4f53\uff08MX<sub>2<\/sub>\u5c42\u5177\u67092H\u5bf9\u79f0\u6027\uff0cM=Mo\u3001W\uff1bX=S\u3001Se\u3001Te\u7684MX<sub>2<\/sub>\u5c42\uff09\uff0c\u5728\u5355\u5c42\u539a\u5ea6\u5904\u5177\u6709\u76f4\u63a5\u95f4\u9699\u3002\u5b83\u4eec\u5177\u6709\u7684\u5149\u4e0e\u7269\u8d28\u4e4b\u95f4\u5f3a\u70c8\u7684\u76f8\u4e92\u4f5c\u7528\uff0c\u6781\u5927\u5730\u589e\u5f3a\u4e86\u7535\u5b50-\u7535\u5b50\u76f8\u4e92\u4f5c\u7528\u3002\u5355\u5c42TMDC\u7684\u6fc0\u5b50\u7ed3\u5408\u80fd\u662f\u6570\u767e\u6beb\u4f0f\u7535\u5b50\uff0c\u6bd4\u5178\u578b\u7684\u7845\u534a\u5bfc\u4f53\u5927\u4e24\u4e2a\u6570\u91cf\u7ea7\u3002\u5355\u5c42TMDC\u4e3a\u7814\u7a76\u548c\u63a7\u5236\u4e0e\u80fd\u91cf\u7b80\u5e76K\u548cK&#8217;\u8c37\u76f8\u5173\u7684\u8c37\u81ea\u7531\u5ea6\uff0c\u63d0\u4f9b\u4e86\u6781\u597d\u7684\u5e73\u53f0\u3002\u7531\u4e8e\u5f3a\u81ea\u65cb\u8f68\u9053\u76f8\u4e92\u4f5c\u7528\uff0cTMDC\u4e2d\u7684\u8c37\u8d5d\u81ea\u65cb\u8026\u5408\u5230\u7535\u5b50\/\u7a7a\u7a74\u81ea\u65cb\u3002TMDC\u5c42\u4e2d\u8303\u5fb7\u74e6\u5c14\u65af\uff08vdW\uff09\u5f02\u8d28\u7ed3\u6784\u7684\u5f62\u6210\uff0c\u5f71\u54cd\u5176\u6fc0\u53d1\u6001\u52a8\u529b\u5b66\u8303\u56f4\uff0c\u4ece\u5c42\u5185\u6fc0\u5b50\u7684\u89e3\u79bb\u548c\u5c42\u95f4\u6fc0\u5b50\u7684\u5f62\u6210\u5230\u81ea\u65cb\u548c\u8c37\u6781\u5316\u7684\u5f1b\u8c6b\u3002vdW\u5f02\u8d28\u7ed3\u6784\u63d0\u4f9b\u4e86\u63a7\u5236\u548c\u4f18\u5316\u7ec4\u6210\u6750\u6599\u7684\u52a8\u6001\u54cd\u5e94\u7684\u6709\u6548\u65b9\u5f0f\u3002\u5728\u672c\u7efc\u8ff0\u4e2d\uff0c\u4f5c\u8005\u5206\u6790\u4e86TMDC\u5f02\u8d28\u7ed3\u6784\u4e2d\uff0c\u7535\u5b50\u52a8\u529b\u5b66\u7684\u6700\u65b0\u8fdb\u5c55\uff0c\u4ece\u98de\u79d2\u5ef6\u4f38\u5230\u5fae\u79d2\u3002\u5728\u77ed\u65f6\u95f4\u5c3a\u5ea6\uff08\u22721ps\uff09\u4e0b\uff0c\u52a8\u529b\u5b66\u4e3b\u8981\u53d7\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u7535\u8377\u8f6c\u79fb\u548c\u80fd\u91cf\u5f1b\u8c6b\u8fc7\u7a0b\u7684\u652f\u914d\u3002\u5728\u8f83\u957f\u7684\u65f6\u95f4\u5c3a\u5ea6\uff08\u22731ps\uff09\uff0c\u5c42\u95f4\u6fc0\u5b50\u7684\u91cd\u7ec4\u548c\u81ea\u65cb\u548c\u8c37\u81ea\u7531\u5ea6\u7684\u677e\u5f1b\u76f8\u5173\u3002<\/p>\n<p><strong>\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n<p>\u8fd1\u65e5\uff0c\u7f8e\u56fd<strong>\u52a0\u5dde\u5927\u5b66\u4f2f\u514b\u5229\u5206\u6821<\/strong>\u7684<strong>Feng Wang<\/strong>\u548c<strong>\u65af\u5766\u798f\u5927\u5b66<\/strong>\u7684<strong>Tony F. Heinz<\/strong><strong>\uff08\u5171\u540c\u901a\u8baf\uff09<\/strong>\u4f5c\u8005\u7b49\u4eba\uff0c\u5206\u6790\u4e86\u8fc7\u6e21\u91d1\u5c5e\u4e8c\u786b\u5316\u7269\uff08TMDC\uff09\u5f02\u8d28\u7ed3\u6784\u7684\u72ec\u7279\u6fc0\u53d1\u6001\u52a8\u529b\u5b66\u3002TMDC\u5355\u5c42\u819c\u662f\u7814\u7a76\u6700\u5e7f\u6cdb\u7684\u4e8c\u7ef4\u534a\u5bfc\u4f53\uff0c\u5177\u6709\u7a81\u51fa\u7684\u6fc0\u5b50\u6001\u548c\u53ef\u8fbe\u5230\u7684\u8c37\u81ea\u7531\u5ea6\u3002\u8bb8\u591aTMDC\u5f02\u8d28\u7ed3\u6784\u7684\u7279\u5f81\u662f\u4ea4\u9519\u7684\u80fd\u5e26\u6392\u5217\u3002\u8be5\u80fd\u5e26\u6392\u5217\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u6fc0\u53d1\u6001\u7684\u6f14\u53d8\u5177\u6709\u91cd\u8981\u4f5c\u7528\uff0c\u5305\u62ec\u5c42\u4e4b\u95f4\u7684\u8d85\u5feb\u7535\u8377\u8f6c\u79fb\uff0c\u5c42\u95f4\u6fc0\u5b50\u7684\u5f62\u6210\uff0c\u4ee5\u53ca\u9a7b\u7559\u8f7d\u6d41\u5b50\u4e2d\u957f\u5bff\u547d\u7684\u81ea\u65cb\u548c\u8c37\u6781\u5316\u7684\u5b58\u5728\u3002\u672c\u6587\u56de\u987e\u4e86\u6700\u8fd1\u7684\u5b9e\u9a8c\u548c\u7406\u8bba\u7814\u7a76\uff0c\u9610\u660e\u4e86TMDC\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u7535\u5b50\u52a8\u529b\u5b66\uff0c\u4ece\u98de\u79d2\u7684\u65f6\u95f4\u5c3a\u5ea6\u5ef6\u4f38\u5230\u5fae\u79d2\uff0c\u8ba8\u8bba\u8fd9\u4e9b\u6548\u5e94\u5bf9\u4e8e\u5149\u7535\u5b50\uff0c\u8c37\u7535\u5b50\u548c\u81ea\u65cb\u7535\u5b50\u5668\u4ef6\u4e2d\u7684\u6f5c\u5728\u5e94\u7528\u7684\u76f8\u5173\u6027\u3002\u76f8\u5173\u6210\u679c\u4ee5<strong>\u201c<\/strong><strong>Ultrafast dynamics in van der Waals heterostructures<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728<strong>Nature Nanotechnology<\/strong>\u4e0a\u3002<\/p>\n<p><strong>\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n<p><strong>\u56fe<\/strong><strong> 1 TMDC<\/strong><strong>\u5782\u76f4\u8303\u5fb7\u74e6\u5c14\u65af\uff08<\/strong><strong>vdW<\/strong><strong>\uff09\u5f02\u8d28\u7ed3\u6784\u7684\u80fd\u5e26\u6392\u5217<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-158702\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/1-12.jpg\" alt=\"\" width=\"600\" height=\"216\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/1-12.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/1-12-300x108.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09MoS<sub>2<\/sub>\/WS<sub>2<\/sub>\u5782\u76f4\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u7535\u5b50\u6001\u8ba1\u7b97\u56fe\uff1b<\/p>\n<p>\uff08b\uff09I\u578b\uff08\u9876\u90e8\uff09\u548cII\u578b\uff08\u5e95\u90e8\uff09\u80fd\u5e26\u6392\u5217\u7684\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u7535\u8377\u8f6c\u79fb\u7684\u793a\u610f\u56fe\uff1b<\/p>\n<p>\uff08c\uff09Perdew-Burke-Ernzerhof\u6cdb\u51fd\uff08DFT-PBE\uff09\uff08\u84dd\u8272\uff09\u548cG<sub>0<\/sub>W<sub>0<\/sub>\uff08\u7c89\u7ea2\u8272\uff09\u4ece\u5934\u7b97\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\u8ba1\u7b97\u5404\u79cdTMDC\u7684\u5e26\u8fb9\u80fd\u91cf\u56fe\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong> 2 <\/strong><strong>\u5782\u76f4<\/strong><strong>TMDC<\/strong><strong>\u5f02\u8d28\u7ed3\u6784\u4e2d\u8d85\u5feb\u901f\u7535\u8377\u8f6c\u79fb\u7684\u5206\u6790<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-158701\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/2-12.jpg\" alt=\"\" width=\"600\" height=\"438\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/2-12.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/2-12-300x219.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09MoS<sub>2<\/sub>\/WS<sub>2<\/sub>\u5f02\u8d28\u7ed3\u6784\u7684\u793a\u610f\u56fe\u548c\u80fd\u91cf\u5206\u8fa8\u77ac\u6001\u5438\u6536\u5149\u8c31\u56fe\uff1b<\/p>\n<p>\uff08b\uff09MoS<sub>2<\/sub>\/MoSe<sub>2<\/sub>\u5f02\u8d28\u7ed3\u6784\uff08\u84dd\u8272\uff09\u548c\u5355\u5c42MoS<sub>2<\/sub>\uff08\u7d2b\u8272\uff09\u7684\u793a\u610f\u56fe\u548c\u65f6\u95f4\u5206\u8fa8\u5dee\u5206\u53cd\u5c04\u56fe\uff1b<\/p>\n<p>\uff08c\uff09\u4e0d\u540c\u626d\u8f6c\u89d2\u7684MoS<sub>2<\/sub>\u548cMoSe<sub>2<\/sub>\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u7535\u8377\u8f6c\u79fb\uff08\u7ea2\u8272\u9634\u5f71\uff09\u548c\u91cd\u7ec4\uff08\u84dd\u8272\uff09\u65f6\u95f4\u56fe\uff1b<\/p>\n<p>\uff08d\uff09\u5728MoS<sub>2<\/sub>\/WS<sub>2<\/sub>\/MoS<sub>2<\/sub>\u4e09\u5c42\u5f02\u8d28\u7ed3\u6784\u4e2d\uff0cMoSe<sub>2<\/sub> A\u6fc0\u5b50\u7684\u80fd\u91cf\u6fc0\u53d1\u540e\uff0cMoS<sub>2 <\/sub>A\u6fc0\u5b50\u7684\u80fd\u91cf\u7684\u5dee\u5206\u53cd\u5c04\u56fe<\/p>\n<p>\uff08e\uff09MoS<sub>2<\/sub>\/MoSe<sub>2<\/sub>\u4e2d\u7684\u5149\u81f4\u53d1\u5149\u731d\u706d\u56fe\uff1b<\/p>\n<p>\uff08f\uff09MoS<sub>2<\/sub>\/WS<sub>2<\/sub>\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u5438\u6536\u80fd\u91cf\u7279\u5f81\u56fe\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong> 3 TMDC<\/strong><strong>\u5f02\u8d28\u7ed3\u6784\u4e2d\u7535\u8377\u8f6c\u79fb\u7684\u9c81\u68d2\u6027\u548c\u8d85\u5feb\u6027\u7684\u7406\u8bba\u5206\u6790<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-158700\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/3-12.jpg\" alt=\"\" width=\"600\" height=\"549\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/3-12.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/3-12-300x275.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09\u58f0\u5b50\u4ecb\u5bfc\u7684\u7535\u5b50\u8f6c\u79fb\u7684\u793a\u610f\u56fe\uff1b<\/p>\n<p>\uff08b\uff09\u7a7a\u7a74\u8f6c\u79fb\u793a\u610f\u56fe\uff1b<\/p>\n<p>\uff08c\uff09\u4e24\u5c42\u626d\u66f2\u5e03\u91cc\u6e0a\u533a\u7684\u4fef\u89c6\u56fe\uff1b<\/p>\n<p>\uff08d\uff09\u7a7a\u7a74\u4f20\u9012\u7684\u5e03\u91cc\u6e0a\u533a\u7684\u4fef\u89c6\u56fe\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong> 4 TMDC<\/strong><strong>\u6750\u6599\u4e2d\u81ea\u65cb\u8c37\u4fe1\u606f\u8f7d\u4f53\u7684\u52a8\u6001\u5206\u6790<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-158699\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/4-12.jpg\" alt=\"\" width=\"600\" height=\"298\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/4-12.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/4-12-300x149.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff0cb\uff09\u4e0d\u540c\u5916\u90e8\u78c1\u573a\u4e0b\uff0c\u5355\u5c42TMDC\u6750\u6599\u4e2d\u7684\u4e09\u4ef7\uff08a\uff09\u548c\u9a7b\u7559\u7535\u5b50\uff08b\uff09\u7684\u81ea\u65cb\u8c37\u52a8\u529b\u5b66\u56fe\uff1b<\/p>\n<p>\uff08c\uff09\u5bf9\u9f50\u6392\u5217\u7684WSe<sub>2<\/sub>\/MoSe<sub>2<\/sub>\u5f02\u53cc\u5c42\u7684\u65f6\u95f4\u5206\u8fa8\u5149\u81f4\u53d1\u5149\u56fe\uff1b<\/p>\n<p>\uff08d\uff09\u7535\u8377\u4e2d\u6027\u65f6\uff0c\u5927\u626d\u66f2\u89d2WSe<sub>2<\/sub>\/MoS<sub>2<\/sub>\u5f02\u8d28\u7ed3\u6784\u4e2d\u8c37\u6781\u5316\u7a7a\u7a74\u7fa4\u3001\u603b\u7a7a\u7a74\u6570\u548c\u8c37\u6781\u5316\u7684\u8870\u53d8\u52a8\u6001\u56fe\uff1b<\/p>\n<p>\uff08e\uff09\u5927\u626d\u8f6c\u89d2WSe<sub>2<\/sub>\/MoS<sub>2<\/sub>\u5f02\u8d28\u7ed3\u6784\u4e2d\uff0c\u8f7d\u6d41\u5b50\u6d53\u5ea6\u7684\u51fd\u6570\u7684\u7a7a\u7a74\u7fa4\uff08\u84dd\u8272\uff09\u548c\u81ea\u65cb\u8c37\uff08\u7ea2\u8272\uff09\u5bff\u547d\u56fe\uff1b<\/p>\n<p>\uff08f\uff0cg\uff09\u7535\u5b50\u63ba\u6742\uff08f\uff09\u548c\u7a7a\u7a74\u63ba\u6742\uff08g\uff09\u5f02\u8d28\u7ed3\u6784\u4e2d\uff0c\u5c42\u95f4\u7535\u5b50-\u7a7a\u7a74\u590d\u5408\u8fc7\u7a0b\u7684\u793a\u610f\u56fe\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong> 5 WSe<sub>2<\/sub>\/MoS<sub>2<\/sub><\/strong><strong>\u5f02\u8d28\u7ed3\u6784\u4e2d\u95f4\u9694\u6563\u5c04\u7684\u6f5c\u5728\u8d77\u6e90<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-158698\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/5-7.jpg\" alt=\"\" width=\"600\" height=\"536\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/5-7.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/5-7-300x268.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>\uff08a\uff09\u4e0e\u6e29\u5ea6\u6709\u5173\u7684\u8c37\u6781\u5316\u8870\u53d8\u52a8\u6001\u56fe\uff1b<\/p>\n<p>\uff08b\uff09\u95f4\u9694\u6563\u5c04\u65f6\u95f4\u7684\u6e29\u5ea6\u4f9d\u8d56\u6027\uff1b<\/p>\n<p>\uff08c\uff09\u5355\u5c42MoS<sub>2<\/sub>\u7684\u5171\u632f\u62c9\u66fc\u5149\u8c31\uff1b<\/p>\n<p>\uff08d\uff09\u57282.0 eV\u9644\u8fd1\u6fc0\u53d1\uff0cK\u70b9\u58f0\u5b50\u7684\u53cc\u5171\u632f\u62c9\u66fc\u8fc7\u7a0b\u56fe\u3002<\/p>\n<p><strong>\u56fe<\/strong><strong> 6 vdW<\/strong><strong>\u5f02\u8d28\u7ed3\u6784\u4e2d\u7684\u81ea\u65cb\u8c37\u4f20\u8f93<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-158697\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/6-7.jpg\" alt=\"\" width=\"600\" height=\"146\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/6-7.jpg 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2018\/11\/6-7-300x73.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" 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href=\"https:\/\/www.nature.com\/articles\/s41565-018-0298-5#auth-5\" target=\"_blank\" rel=\"noopener\">Ultrafast dynamics in van der Waals heterostructures<\/a><\/strong>\uff08Nature Nanotechnology, 2018, DOI: 10.1038\/s41565-018-0298-5\uff09\u3002<\/p>\n<p>\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u5f20\u91d1\u6d0b\u7f16\u8bd1\u6574\u7406\u3002<\/p>\n<p><strong>\u6295\u7a3f\u4ee5\u53ca\u5185\u5bb9\u5408\u4f5c\u53ef\u52a0\u7f16\u8f91\u5fae\u4fe1\uff1a<\/strong><strong>cailiaokefu<\/strong><strong>\uff0c\u6211\u4eec\u4f1a\u9080\u8bf7\u5404\u4f4d\u8001\u5e08\u52a0\u5165\u4e13\u5bb6\u7fa4\u3002<\/strong><\/p>\n<p>\u6b22\u8fce\u5927\u5bb6\u5230\u6750\u6599\u4eba\u5ba3\u4f20\u79d1\u6280\u6210\u679c\u5e76\u5bf9\u6587\u732e\u8fdb\u884c\u6df1\u5165\u89e3\u8bfb\uff0c\u6295\u7a3f\u90ae\u7bb1tougao@cailiaoren.com\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3010\u5f15\u8a00\u3011 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