{"id":241120,"date":"2022-08-15T06:50:37","date_gmt":"2022-08-14T22:50:37","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=241120"},"modified":"2022-08-14T22:53:48","modified_gmt":"2022-08-14T14:53:48","slug":"%e5%89%91%e6%a1%a5%e5%a4%a7%e5%ad%a6nature%ef%bc%9a%e4%ba%8c%e7%bb%b4%e8%bf%87%e6%b8%a1%e9%87%91%e5%b1%9e%e4%ba%8c%e7%a1%ab%e5%8c%96%e7%89%a9%e7%9a%84-p-%e5%9e%8b%e7%94%b5%e6%8e%a5%e8%a7%a6","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=241120","title":{"rendered":"\u5251\u6865\u5927\u5b66Nature\uff1a\u4e8c\u7ef4\u8fc7\u6e21\u91d1\u5c5e\u4e8c\u786b\u5316\u7269\u7684 P \u578b\u7535\u63a5\u89e6"},"content":{"rendered":"

\u4e00\u3001\u3010\u5bfc\u8bfb\u3011<\/strong><\/p>\n

\u6570\u5b57\u903b\u8f91\u7535\u8def\u662f\u57fa\u4e8e\u4e92\u8865\u91d1\u5c5e\u6c27\u5316\u7269\u534a\u5bfc\u4f53\uff08CMOS\uff09\u6280\u672f\u7684n\u3001p\u578b\u573a\u6548\u5e94\u6676\u4f53\u7ba1\uff08FETs\uff09\u4e92\u8865\u5bf9\u3002\u57fa\u4e8e\u8fc7\u6e21\u91d1\u5c5e\u4e8c\u786b\u5c5e\u5316\u7269\uff08TMD\uff09\u7cfb\u5217\u6750\u6599\u7684\u4e8c\u7ef4\u534a\u5bfc\u4f53\u867d\u7136\u5177\u6709\u7406\u60f3\u7684\u5c5e\u6027\uff0c\u4f8b\u5982\u539f\u5b50\u822c\u8584\u7684\u57fa\u4f53\uff0c\u6ca1\u6709\u60ac\u6302\u952e\u7684\u4e0b\u4e00\u4ee3\u7535\u5b50\u5668\u4ef6\u3002\u7136\u800c\uff0c\u4e8c\u7ef4TMD\u7684\u53ef\u63a7\u548c\u53ef\u9760\u7684\u66ff\u4ee3\u63ba\u6742\u5177\u6709\u6311\u6218\u6027\u2014\u2014\u8fd9\u4f7f\u5f97\u96be\u4ee5\u5b9e\u73b0\u7eaf p \u548cn\u578bFETs\u4ee5\u53ca\u5b9e\u73b0\u4f4e\u7535\u963b\u63a5\u89e6\u3002\u5c3d\u7ba1\u53ef\u4ee5\u5728\u4e8c\u7ef4TMD\u4e0a\u5b9e\u73b0\u9ad8\u8d28\u91cf\u3001\u4f4e\u7535\u963b\u7684n\u578b\u8303\u5fb7\u534e(vdW)\u63a5\u89e6\uff0c\u4f46\u8fc4\u4eca\u4e3a\u6b62\u5c1a\u672a\u5b9e\u73b0\u901a\u8fc7\u5c06\u9ad8\u529f\u51fd\u6570\u7684\u91d1\u5c5e\u84b8\u53d1\u5230\u4e8c\u7ef4TMD\u4e0a\u6765\u83b7\u5f97p\u578b\u5668\u4ef6\u3002<\/p>\n

\u4e8c\u3001\u3010\u6210\u679c\u63a0\u5f71<\/strong>\u3011<\/p>\n

\u8fd1\u65e5\uff0c\u5251\u6865\u5927\u5b66Manish Chhowalla\u6559\u6388\u8bfe\u9898\u7ec4\u62a5\u9053\u4e86\u91c7\u7528\u5de5\u4e1a\u517c\u5bb9\u7684\u7535\u5b50\u675f\u84b8\u53d1\u7b56\u7565\u5b9e\u73b0\u4e86\u9ad8\u529f\u51fd\u6570\u91d1\u5c5e\uff08Pd\uff0cPt\uff09\u540c\u5355\u5c42\u548c\u5be1\u5c42MoS2<\/sub>\u53caWSe2<\/sub>\u7684\u96c6\u6210\uff0c\u5f97\u5230\u4e86\u9ad8\u6027\u80fdp\u578b\u5668\u4ef6\u3002\u901a\u8fc7\u539f\u5b50\u5206\u8fa8\u7387\u6210\u50cf\u548c\u5149\u8c31\u5b66\uff0c\u5c55\u793a\u4e86\u63a5\u8fd1\u7406\u60f3\u7684vdW\u754c\u9762\uff0c\u800c\u4e8c\u7ef4TMD \u548c\u4e09\u7ef4\u91d1\u5c5e\u4e4b\u95f4\u6ca1\u6709\u5316\u5b66\u76f8\u4e92\u4f5c\u7528\u3002\u901a\u8fc7\u7535\u5b50\u8f93\u8fd0\u6d4b\u91cf\uff0c\u8d39\u7c73\u80fd\u7ea7\u662f\u975e\u56fa\u5b9a\u7684\uff0c\u57fa\u4e8evdW\u63a5\u89e6\u7684p\u578b\u573a\u6548\u5e94\u6676\u4f53\u7ba1\u5728\u5ba4\u6e29\u4e0b\u8868\u73b0\u51fa\u4f4e\u63a5\u89e6\u7535\u963b\uff083.3 k\u03a9\u00b7m\uff09\u3001\u9ad8\u8fc1\u79fb\u7387\uff08190 cm2<\/sup>V-1<\/sup>s-1<\/sup>\uff09\u3001\u9971\u548c\u7535\u6d41>10-5 A\u03bcm-1<\/sup>\uff0c\u5f00\/\u5173\u6bd4\u4e3a107<\/sup>\u3002\u540c\u65f6\u8fd8\u5c55\u793a\u4e86\u4e00\u79cd\u57fa\u4e8en\u578b\u548cp\u578bvdW\u89e6\u70b9\u7684\u8d85\u8584\u5149\u4f0f\u7535\u6c60\uff0c\u5176\u5f00\u8def\u7535\u538b\u4e3a0.6V\uff0c\u529f\u7387\u8f6c\u6362\u6548\u7387\u4e3a0.82%\u3002\u76f8\u5173\u6210\u679c\u4ee5\u201cP-type electrical contacts for two-dimensional transition metal dichalcogenides<\/strong>\u201d\u53d1\u8868\u5728Nature<\/em><\/strong>\u4e0a\u3002\u82f1\u56fd\u5251\u6865\u5927\u5b66\u738b\u7430\u548c\u97e9\u56fd\u851a\u5c71\u79d1\u5b66\u6280\u672f\u5b66\u9662Jong Chan Kim\u4e3a\u5171\u540c\u7b2c\u4e00\u4f5c\u8005\uff0c\u5251\u6865\u5927\u5b66Manish Chhowalla\u4e3a\u8bba\u6587\u901a\u8baf\u4f5c\u8005\u3002<\/p>\n

\"\" <\/p>\n

\u4e09\u3001<\/strong>\u3010\u6838\u5fc3\u521b\u65b0\u70b9\u3011<\/strong><\/p>\n

\u5236\u5907\u7684\u5c11\u5c42\u548c\u5355\u5c42\u7684MoS2<\/sub>\u548cWSe2<\/sub>\u5c55\u793a\u4e86\u9ad8\u529f\u51fd\u6570\u91d1\u5c5e\uff08\u4f8b\u5982Pd\u3001Pt\u548c Au\uff09\u7684\u7406\u60f3vdW\u63a5\u89e6\u3002\u8fd9\u4e9b\u63a5\u89e6\u4f7fMoS2<\/sub>\u4e0a\u548cWSe2<\/sub>\u4e0a\u7684\u83b7\u5f97p\u578b\u7279\u6027\uff0c\u5e76\u4e14\u5b9e\u73b0\u4e86\u9ad8\u6027\u80fd\u7684\u8868\u73b0\u3002<\/p>\n

\u56db\u3001\u3010\u6570\u636e\u6982\u89c8\u3011<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/strong> 1 <\/strong>\u91d1\u5c5e<\/strong>–<\/strong>\u534a\u5bfc\u4f53\u754c\u9762\u7684\u539f\u5b50\u5206\u8fa8\u7387\u6210\u50cf\u548c\u5316\u5b66\u5206\u6790<\/strong><\/p>\n

\u591a\u5c42MoS2<\/sub>\u4e0aPd\u7684\u539f\u5b50\u5206\u8fa8\u7387\u56fe\u50cf(i)\u73af\u5f62\u6697\u573a(ADF)STEM\u56fe\u50cf\u663e\u793aPd\u548cMoS2<\/sub>\u4e4b\u95f4\u5e72\u51c0\u7684\u754c\u9762\u3002\u6bd4\u4f8b\u5c3a= 1 nm\u3002(ii)\u4ece(i)\u653e\u5927\u7684\u77e9\u5f62\u533a\u57df\u663e\u793aADF STEM\u56fe\u50cf\uff0cMo, S\u548cPd\u539f\u5b50\u53ef\u89c1\u3002Pd\u4e0eS\u7684\u8ddd\u79bb\u4e3a3\u00b10.1 \u00c5\u3002\u6bd4\u4f8b\u5c3a= 5 \u00c5\u3002b, Pd- MoS2<\/sub>\u754c\u9762\u7684x\u5c04\u7ebf\u5149\u7535\u5b50\u80fd\u8c31(XPS)\u663e\u793a\u53ea\u6709\u539f\u59cb\u7684Pd\u91d1\u5c5e\u5cf0\uff0c\u6ca1\u6709PdS2<\/sub>\u6216\u5176\u4ed6\u5316\u5b66\u53cd\u5e94\u7684\u8bc1\u636e\u3002c\uff0c\u7535\u5b50\u80fd\u91cf\u635f\u5931\u5149\u8c31(EELS)\u663e\u793a\u754c\u9762\u4e0a\u7684\u786b\u539f\u5b50\u5b8c\u5168\u4e0d\u53d7\u9876\u90e8\u91d1\u5c5e\u6c89\u79ef\u7684\u5f71\u54cd\u3002\u5728\u6d4b\u91cf\u7cbe\u5ea6\u8303\u56f4\u5185\uff0c\u6700\u4e0a\u5c42\u548c\u7b2c\u56db\u5c42\u7684\u786b\u5cf0\u76f8\u540c\u3002d\uff0c\u591a\u5c42WSe2<\/sub>\u4e0aPt\u7684\u539f\u5b50\u5206\u8fa8\u7387\u56fe\u50cf\u3002(i)\u754c\u9762\u548c(ii\u4ece(i)\u653e\u5927\u7684\u865a\u7ebf\u77e9\u5f62\u533a\u57df\u7684ADF STEM\u56fe\u50cf\u3002Pt\u548cSe\u4e4b\u95f4\u7684\u8ddd\u79bb\u4e3a2.3\u00b10.1 \u00c5\u3002\u6bd4\u5c3a\u5728(i)\u4e2d\u4e3a1 nm\uff0c\u5728(ii)\u4e2d\u4e3a5 \u00c5\u3002e, Pt-WSe2<\/sub>\u754c\u9762\u7684XPS\u663e\u793a\u539f\u59cbPt\u91d1\u5c5e\u5cf0\u3002f, EELS\u8868\u660e\u5404\u5c42Se\u539f\u5b50\u7684\u7535\u5b50\u7ed3\u6784\u662f\u76f8\u4f3c\u7684\u3002\u00a9 2022 Springer Nature<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>2 <\/strong>\u5177\u6709<\/strong>Pd<\/strong>\u548c<\/strong>Pt<\/strong>\u89e6\u70b9\u7684\u591a\u5c42<\/strong>MoS2<\/sub><\/strong>\u548c<\/strong>WSe2<\/sub><\/strong>\u5668\u4ef6<\/strong><\/p>\n

a\uff0c\u4e0e\u7535\u5b50\u7535\u6d41\u76f8\u6bd4\uff0c\u5177\u6709Pd\u89e6\u70b9\u7684\u591a\u5c42MoS2<\/sub>\u7684\u4f20\u9012\u66f2\u7ebf\u663e\u793a\u51fa\u5177\u6709\u66f4\u9ad8\u7a7a\u7a74\u7535\u6d41\u5206\u652f\u7684\u53cc\u6781\u5668\u4ef6\u7279\u6027\u3002W= 5.5 \u00b5m\uff0cL= 2 \u00b5m\u3002 b\uff0c\u5177\u6709Pd\u89e6\u70b9\u7684\u591a\u5c42 MoS2<\/sub>\u7684\u8f93\u51fa\u66f2\u7ebf\u663e\u793a\u4e86\u5b54\u7684\u7ebf\u6027\u7535\u6d41-\u7535\u538b\u66f2\u7ebf\u3002c\uff0c\u5177\u6709Pt\u89e6\u70b9\u7684\u591a\u5c42WSe2<\/sub>\u7684\u8f6c\u79fb\u66f2\u7ebf\uff0c\u663e\u793a\u51fa\u7eafp\u578b\u5668\u4ef6\u7279\u6027\u3002W= 12 \u00b5m\uff0cL= 4 \u00b5m\u3002 d\uff0c\u5177\u6709Pt\u7535\u6781\u7684\u591a\u5c42WSe2<\/sub>\u7684\u7ebf\u6027\u8f93\u51fa\u7279\u6027\u3002e\uff0c\u5177\u6709Pd\u7535\u6781\u7684\u591a\u5c42MoS2<\/sub>\u7684TLM\u7ed3\u679c\u3002f\uff0c\u5177\u6709Pt\u89e6\u70b9\u7684\u591a\u5c42WSe2<\/sub>\u7684TLM\u7ed3\u679c\u3002g\uff0ch\uff0cWSe2<\/sub> FETs\u7684\u6f0f\u6781\u7535\u6d41\u548c\u63a5\u89e6\u7535\u963b\u4e0e\u6587\u732e\u4e2d\u4f7f\u7528\u4e0d\u540c\u65b9\u6cd5\u62a5\u9053\u7684\u503c\u7684\u6bd4\u8f83\u3002\u00a9 2022 Springer Nature<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>3 <\/strong>\u5177\u6709\u9ad8\u529f\u51fd\u6570\u91d1\u5c5e\u63a5\u89e6\u7684<\/strong>CVD<\/strong>\u751f\u957f\u5355\u5c42<\/strong>MoS2<\/sub><\/strong>\u548c<\/strong>WSe2<\/sub><\/strong><\/p>\n

a\uff0cADF STEM\u56fe\u50cf\u663e\u793aPt\u548c\u5355\u5c42WSe2<\/sub>\u4e4b\u95f4\u7684\u5e72\u51c0\u754c\u9762\u3002\u6bd4\u4f8b\u5c3a= 1 nm\u3002b\uff0c\u5177\u6709Pt\u63a5\u89e6\u7684\u5355\u5c42WSe2<\/sub>\u7684\u8f6c\u79fb\u66f2\u7ebf\u663e\u793a\u51fa\u7eafp\u578b\u7279\u5f81\u3002W= 4\u00b5m\uff0cL= 1.5 \u00b5m\u3002c\uff0c\u5177\u6709Pt\u89e6\u70b9\u7684\u5355\u5c42WSe2<\/sub> FET\u7684\u8f93\u51fa\u66f2\u7ebf\u3002d\uff0cWSe2<\/sub> FET\u7684TLM\u7ed3\u679c\u663e\u793a\u63a5\u89e6\u7535\u963b\u503c\u7ea6\u4e3a229 k\u03a9\u00b7\u00b5m\u3002e\uff0cADF STEM\u56fe\u50cf\u663e\u793aPd\u548c\u5355\u5c42MoS2<\/sub>\u4e4b\u95f4\u7684\u5e72\u51c0\u754c\u9762\u3002\u6bd4\u4f8b\u5c3a= 1 nm\u3002f\uff0c\u5177\u6709Pd\u89e6\u70b9\u7684\u5355\u5c42MoS2<\/sub>\u7684\u8f6c\u79fb\u66f2\u7ebf\uff0c\u663e\u793a\u51fa\u5177\u6709\u66f4\u9ad8\u7a7a\u7a74\u7535\u6d41\u5206\u652f\u7684\u53cc\u6781\u5668\u4ef6\u7279\u6027\u3002W= 5 \u00b5m\uff0cL= 1 \u00b5m\u3002\u7535\u5b50\u7535\u6d41\u503c<< 1 nA\u3002\u00a9 2022 Springer Nature<\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>4. <\/strong>\u7528\u4e8e<\/strong>MoS2<\/sub><\/strong>\u548c<\/strong>WSe2<\/sub><\/strong>\u7684\u5177\u6709\u4e0d\u5bf9\u79f0\u7535\u6781\u7684\u91d1\u5c5e<\/strong>–<\/strong>\u534a\u5bfc\u4f53<\/strong>–<\/strong>\u91d1\u5c5e\u5149\u7535\u4e8c\u6781\u7ba1<\/strong><\/p>\n

a\uff0c\u4e0d\u5bf9\u79f0\u63a5\u89e6\u4e8c\u6781\u7ba1\u7684\u793a\u610f\u56fe\u3002b\uff0c\u5177\u6709In\/Au\u548cPd\u89e6\u70b9\u7684MoS2<\/sub>\u5668\u4ef6\u7684\u8f93\u51fa\u66f2\u7ebf\u663e\u793a\u51fa\u826f\u597d\u7684\u6574\u6d41\u884c\u4e3a\u3002c\uff0c\u4e8c\u6781\u7ba1\u5728\u9ed1\u6697\u548c\u5149\u7167\uff08532 nm\uff0c70 \u03bcW\uff09\u4e0b\u7684I-V\u66f2\u7ebf\uff0c\u5f00\u8def\u7535\u538b\u4e3a0.48 V\uff0c\u8f93\u51fa\u529f\u7387\u4e3a267 nW\u3002\u7ea2\u8272\u865a\u7ebf\u663e\u793a\u4e86\u6700\u5927\u529f\u7387\u8f6c\u6362\u7684\u76f8\u5e94\u529f\u7387\u533a\u57df\u3002d\uff0c\u5177\u6709In\/Au\u548cPt\u89e6\u70b9\u7684WSe2<\/sub>\u5668\u4ef6\u7684\u8f93\u51fa\u66f2\u7ebf\u663e\u793a\u51fa\u826f\u597d\u7684\u6574\u6d41\u884c\u4e3a\u3002e\uff0c\u4e8c\u6781\u7ba1\u5728\u9ed1\u6697\u548c\u5149\u7167\uff08532 nm\uff0c70 \u03bcW\uff09\u4e0b\u7684I-V\u66f2\u7ebf\uff0c\u8868\u660e\u5f00\u8def\u7535\u538b\u4e3a0.6 V\uff0c\u8f93\u51fa\u529f\u7387\u4e3a572 nW\u3002d\uff0c\u4e0d\u540c\u7167\u660e\u529f\u7387\u4e0b\u7684I-V\u66f2\u7ebf\u663e\u793a\u7535\u6d41\u589e\u52a0\u548c\u7a33\u5b9a\u7684\u5f00\u8def\u7535\u538b\u3002\u00a9 2022 Springer Nature<\/p>\n

\u4e94<\/strong>\u3001\u3010\u6210\u679c\u542f\u793a\u3011<\/strong><\/p>\n

Pd\uff0cPt\u548cAu\u7b49\u9ad8\u529f\u51fd\u91d1\u5c5e\u540c\u5355\u5c42\u6216\u5be1\u5c42MoS2<\/sub>\u3001WSe2<\/sub>\u7684\u6e05\u6d01\u63a5\u89e6\u5b9e\u73b0\u4e86\u5177\u6709p\u578b\u7279\u5f81\u7684\u65b0\u578b\u7535\u5b50\u5668\u4ef6\u3002\u7814\u7a76\u7ed3\u679c\u8868\u660e\u8d39\u7c73\u80fd\u7ea7\u5e76\u672a\u88ab\u9489\u624e\uff0c\u5e76\u53ef\u4ee5\u901a\u8fc7\u6805\u7535\u538b\u6765\u5bf9\u5176\u8c03\u63a7\u3002n\/p\u63a5\u89e6\u80fd\u5b9e\u73b0PN\u7ed3\u4e8c\u6781\u7ba1\uff0c\u4ece\u800c\u6709\u671b\u5b9e\u73b0\u57fa\u4e8ep\/n\u4e92\u8865\u578bFET\u7684\u4e8c\u7ef4\u7535\u5b50\u5668\u4ef6\u3002<\/p>\n

\u539f\u6587\u8be6\u60c5<\/strong>\uff1aWang, Y., Kim, J.C., Li, Y. et al. P-type electrical contacts for two-dimensional transition metal dichalcogenides.Nature <\/em>(2022). https:\/\/doi.org\/10.1038\/s41586-022-05134-w<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u3001\u3010\u5bfc\u8bfb\u3011 \u6570\u5b57\u903b\u8f91\u7535\u8def\u662f\u57fa\u4e8e\u4e92\u8865\u91d1\u5c5e\u6c27\u5316\u7269\u534a\u5bfc\u4f53\uff08CMOS\uff09\u6280\u672f\u7684n\u3001p\u578b\u573a\u6548\u5e94\u6676\u4f53\u7ba1\uff08FETs\uff09\u4e92\u8865\u5bf9\u3002\u57fa\u4e8e\u8fc7\u6e21\u91d1\u5c5e\u4e8c\u786b\u5c5e\u5316\u7269\uff08TMD\uff09\u7cfb\u5217\u6750\u6599\u7684\u4e8c\u7ef4\u534a\u5bfc…<\/p>\n","protected":false},"author":35234,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-241120","post","type-post","status-publish","format-standard","hentry","category-keji"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/241120"}],"collection":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/users\/35234"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=241120"}],"version-history":[{"count":1,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/241120\/revisions"}],"predecessor-version":[{"id":241126,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/241120\/revisions\/241126"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=241120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=241120"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=241120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}