{"id":91015,"date":"2017-07-13T06:30:34","date_gmt":"2017-07-12T22:30:34","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=91015"},"modified":"2017-07-12T14:59:47","modified_gmt":"2017-07-12T06:59:47","slug":"%e7%89%9b%e6%99%ba%e5%b7%9dnsr%e7%bb%bc%e8%bf%b0%ef%bc%9a%e5%9f%ba%e4%ba%8e%e8%87%aa%e7%bb%84%e8%a3%85gaas%e5%9f%ba%e7%ba%b3%e7%b1%b3%e7%ba%bf%e4%be%a7%e5%a3%81%e9%87%8f%e5%ad%90%e7%82%b9%e7%9a%84","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=91015","title":{"rendered":"\u725b\u667a\u5dddNSR\u7efc\u8ff0\uff1a\u57fa\u4e8e\u81ea\u7ec4\u88c5GaAs\u57fa\u7eb3\u7c73\u7ebf\u4fa7\u58c1\u91cf\u5b50\u70b9\u7684\u5355\u5149\u5b50\u53d1\u5c04\u7814\u7a76"},"content":{"rendered":"

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

\u8fd1\u65e5\uff0c\u6765\u81ea\u4e2d\u56fd\u79d1\u5b66\u9662\u534a\u5bfc\u4f53\u7814\u7a76\u6240<\/strong>\u7684\u725b\u667a\u5ddd\u7814\u7a76\u5458<\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09\u7b49\u4eba\u5728National Science Review<\/strong>\u4e0a\u53d1\u8868\u4e86\u9898\u4e3a\u201cSelf-assembled semiconductor quantum dots decorating the facets of GaAs nanowire for single-photon emission<\/strong>\u201d\u7684\u7efc\u8ff0\u6587\u7ae0\uff0c\u6587\u7ae0\u8ba8\u8bba\u4e86GaAs\u7eb3\u7c73\u7ebf\uff08NWs\uff09\u4e2d\u81ea\u7ec4\u88c5\u91cf\u5b50\u70b9\uff08QDs\uff09\u7684\u5206\u5b50\u675f\u5916\u5ef6\u751f\u957f\u53ca\u5176\u5355\u5149\u5b50\u53d1\u5c04\u7279\u6027\u3002\u5c55\u793a\u4e86\u516d\u68f1\u67f1\u5f62GaAs\/AlGaAs\u6838\u58f3NWs\uff0c\u5206\u53c9GaAs NWs\u548c\u7eb3\u7c73\u7ebf\u4fa7\u58c1\u4e0aGa\u6db2\u6ef4\u8bf1\u5bfc\u7684\u65e0\u91d1\u5c5e\u6c14\u56fa\u6db2\u76f8\u751f\u957f\u3002\u7279\u522b\u5730\uff0c\u6587\u7ae0\u5c55\u793a\u4e86\u4e24\u79cd\u65b0\u578b\u7684QD-in-NWs\u7ed3\u6784\uff1a\u4e00\u4e2a\u662f\u5728\u5206\u53c9GaAs NWs\u7684\u62d0\u89d2\u5904\u5f62\u6210\u7684\u5355\u4e2aInAs QDs\uff0c\u53e6\u4e00\u4e2a\u662f\u5728GaAs\/AlGaAs NWs\u4fa7\u58c1\u4e0a\u5f62\u6210\u7684\u5355\u4e2aGaAs QDs\u3002\u6b64\u5916\uff0c\u5728NWs\u4fa7\u58c1\u4e0a\u7684\u5355\u4e2aAlGaAs\u91cf\u5b50\u73af\uff08QR\uff09\u7684\u4f4d\u7f6e\u5904\u5b9e\u73b0\u4e86\u5355\u4e2aGaAs QDs\u7684\u53ef\u63a7\u5916\u5ef6\u751f\u957f\u3002\u57fa\u4e8e\u8fd9\u4e9b\u7eb3\u7c73\u7ebf\u5355\u91cf\u5b50\u70b9\u7ed3\u6784\uff0c\u6587\u7ae0\u8fd8\u5c55\u793a\u4e86\u901a\u8fc7\u539f\u4f4d\u63a2\u6d4b\u548c\u5355\u6a21\u5149\u7ea4\u96c6\u6210\u6280\u672f\uff0c\u5236\u5907\u5149\u7ea4\u96c6\u6210\u4e00\u4f53\u5316\u8f93\u51fa\u5355\u5149\u5b50\u6e90\u3002\u8fd9\u4e9b\u5de5\u4f5c\u5c06\u5728\u91cf\u5b50\u4fe1\u606f\u6280\u672f\u3001\u91cf\u5b50\u96c6\u6210\u7f51\u7edc\u9886\u57df\u5c55\u793a\u91cd\u5927\u7684\u6f5c\u5728\u5e94\u7528\u4ef7\u503c\u3002
\n \"\"<\/p>\n

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

1 \u7b80\u4ecb<\/b><\/strong><\/h3>\n

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\u7136\u800c\uff0c\u867d\u7136\u4e0a\u8ff0\u5fae\u8154\u7ed3\u6784\u5b9e\u73b0\u4e86\u5bf9\u5355\u5149\u5b50\u7684\u9ad8\u6548\u6536\u96c6\uff0c\u4f46\u5176\u5e26\u5bbd\u90fd\u5c0f\u4e8e1 nm\uff0c\u8fd9\u4e0d\u4ec5\u5bf9\u91cf\u5b50\u70b9\u7684\u5149\u8c31\u5339\u914d\u6709\u5f88\u9ad8\u7684\u8981\u6c42\uff0c\u800c\u4e14\u901a\u5e38\u53ea\u80fd\u6536\u96c6\u5355\u6761\u8c31\u7ebf\u3002\u800c\u5728\u901a\u8fc7\u53cc\u6fc0\u5b50\u7ea7\u8054\u53d1\u5c04\u4ea7\u751f\u7684\u91cf\u5b50\u70b9\u7ea0\u7f20\u5149\u5b50\u5bf9\u4e2d\uff0c\u4e24\u4e2a\u5149\u5b50\u6ce2\u957f\u76f8\u5dee\u51e0\u4e2a\u7eb3\u7c73\uff0c\u8fd9\u4e9b\u7a84\u5e26\u5bbd\u7684\u5fae\u8154\u65e0\u6cd5\u540c\u65f6\u548c\u8fd9\u4e24\u4e2a\u5149\u5b50\u5171\u632f\u3002\u56e0\u6b64\uff0c\u4e9f\u9700\u53d1\u5c55\u4e00\u79cd\u540c\u65f6\u5177\u5907\u9ad8\u63d0\u53d6\u6548\u7387\u548c\u5bbd\u5e26\u5bbd\u7684\u65b0\u578b\u7ed3\u6784\u3002\u7ecf\u7406\u8bba\u548c\u5b9e\u9a8c\u9a8c\u8bc1\uff0c\u4e9a\u6ce2\u957f\u5c3a\u5bf8\u7684\u6ce2\u5bfc\uff08\u5982\u7eb3\u7c73\u7ebf\u3001\u5fae\u900f\u955c\u7b49\uff09\u6b63\u662f\u8fd9\u79cd\u5fae\u7eb3\u7ed3\u6784\u7684\u7406\u60f3\u9009\u62e9\u3002\u4f8b\u5982\u9525\u5f62\u7eb3\u7c73\u7ebf\u91cf\u5b50\u70b9\u7ed3\u6784\u4e2d\uff0c\u7531\u4e8e\u7eb3\u7c73\u7ebf\u6ce2\u5bfc\u7ed3\u6784\u5bf9\u5149\u573a\u6a21\u5f0f\u7684\u9650\u5236\u4f5c\u7528\uff0c\u5927\u90e8\u5206\u7684\u91cf\u5b50\u70b9\u8367\u5149\u53ef\u4ee5\u8026\u5408\u5230\u7eb3\u7c73\u7ebf\u7684\u57fa\u6a21\uff08HE11\uff09\u4e2d\u3002\u8fdb\u4e00\u6b65\u901a\u8fc7\u8bbe\u8ba1\u9525\u5f62\u7684\u9876\u90e8\u53ef\u4ee5\u5b9e\u73b0\u7edd\u70ed\u6a21\u5f0f\u6269\u5f20\uff08adiabatic mode expansion\uff09\uff0c\u7531\u4e8e\u51fa\u5c04\u5149\u6591\u5927\uff0c\u53d1\u6563\u89d2\u5c0f\uff0c\u91cf\u5b50\u70b9\u7684\u8367\u5149\u63d0\u53d6\u6548\u7387\u5f97\u5230\u6709\u6548\u7684\u63d0\u9ad8\uff0c\u7406\u8bba\u4e0a\u9884\u6d4b\u7684\u63d0\u53d6\u6548\u7387\u53ef\u8fbe90%\u4ee5\u4e0a\u3002\u540c\u65f6\uff0c\u7eb3\u7c73\u7ebf\u7ed3\u6784\u5177\u6709\u5f88\u5bbd\u7684\u5e26\u5bbd\uff0c\u53ef\u4ee5\u7528\u6765\u5b9e\u73b0\u9ad8\u6548\u7684\u7ea0\u7f20\u5149\u5b50\u5bf9\u4ea7\u751f\u3002<\/p>\n

\u4e00\u822c\u800c\u8a00\uff0c\u9525\u5f62\u7eb3\u7c73\u7ebf\u91cf\u5b50\u70b9\u53ef\u901a\u8fc7\u81ea\u4e0a\u800c\u4e0b\u5fae\u52a0\u5de5\uff08top-down\uff09\u6216\u81ea\u4e0b\u800c\u4e0a\u5916\u5ef6\u751f\u957f\uff08bottom-up\uff09\u7684\u65b9\u6cd5\u6765\u5236\u5907\u30021\uff09\u81ea\u4e0a\u800c\u4e0b\u7684\u65b9\u6cd5\u662f\u5728\u5e73\u9762\u57fa\u5e95\u4e0a\u901a\u8fc7\u81ea\u7ec4\u7ec7\u7684\u65b9\u6cd5\u5916\u5ef6\u751f\u957f\u91cf\u5b50\u70b9\u7ed3\u6784\uff0c\u7ee7\u800c\u901a\u8fc7\u5fae\u52a0\u5de5\u6280\u672f\u523b\u8680\u51fa\u5185\u90e8\u542b\u6709\u91cf\u5b50\u70b9\u7684\u7eb3\u7c73\u7ebf\u7ed3\u6784\u3002\u7136\u800c\uff0c\u8fd9\u79cd\u6280\u672f\u4e2d\u91cf\u5b50\u70b9\u7684\u5206\u5e03\u662f\u968f\u673a\u65e0\u5e8f\u7684\uff0c\u65e0\u6cd5\u4fdd\u8bc1\u6bcf\u6839\u7eb3\u7c73\u7ebf\u4e2d\u91cf\u5b50\u70b9\u7684\u4e2a\u6570\uff0c\u4e14\u5f88\u96be\u63a7\u5236\u91cf\u5b50\u70b9\u4e0e\u8868\u9762\u7684\u8ddd\u79bb\uff0c\u975e\u5747\u5300\u5c55\u5bbd\u4ecd\u7136\u5b58\u5728\uff0c\u6210\u54c1\u7387\u8f83\u4f4e\u30022\uff09\u81ea\u4e0b\u800c\u4e0a\u7684\u65b9\u6cd5\u662f\u5728\u7eb3\u7c73\u7ebf\u8f74\u5411\u751f\u957f\u8fc7\u7a0b\u4e2d\u5f15\u5165\u4e00\u5c0f\u5c42\u5f02\u8d28\u6750\u6599\u800c\u5f62\u6210\u4e09\u7ef4\u53d7\u9650\u7684\u91cf\u5b50\u70b9\uff0c\u8fd9\u79cd\u7c7b\u578b\u7684QD-in-NW\u662f\u5728\u9ad8\u771f\u7a7a\u8154\u4e2d\u81ea\u7ec4\u88c5\u5916\u5ef6\u751f\u957f\u7684\uff0c\u7406\u8bba\u4e0a\u662f\u65e0\u7f3a\u9677\u7684\uff0c\u5c3a\u5bf8\u548c\u4f4d\u7f6e\u53ef\u63a7\uff0c\u6613\u4e8e\u5f62\u6210\u7535\u63a5\u89e6\uff0c\u4e14\u6ee1\u8db3\u9ad8\u6548\u8367\u5149\u6536\u96c6\u7684\u8981\u6c42\u3002<\/p>\n

2 \u81ea\u7ec4\u88c5\u7eb3\u7c73\u7ebf\u91cf\u5b50\u70b9\u7ed3\u6784\u7684\u8bbe\u8ba1\u4e0e\u5236\u9020<\/b><\/strong><\/h3>\n

\u81ea\u4e0b\u800c\u4e0a\u7684NWs\u53ef\u4ee5\u901a\u8fc7\u4e0d\u540c\u7684\u5916\u5ef6\u751f\u957f\u6280\u672f\u83b7\u5f97\uff0c\u4f8b\u5982\u91d1\u5c5e\u6709\u673a\u6c14\u76f8\u5916\u5ef6\uff08MOVPE\uff09\uff0c\u91d1\u5c5e\u6709\u673a\u5316\u5b66\u6c14\u76f8\u6c89\u79ef\uff08MOCVD\uff09\uff0c\u5316\u5b66\u675f\u5916\u5ef6\uff08CBE\uff09\uff0c\u4ee5\u53ca\u5206\u5b50\u675f\u5916\u5ef6\uff08MBE\uff09\u3002 \u540c\u65f6\uff0c\u8003\u8651\u5230\u91d1\u50ac\u5316\u5242\u6613\u5728NWs\u548cNW-QDs\u4e2d\u5f15\u5165\u6df1\u80fd\u7ea7\u7f3a\u9677\uff0c\u5f71\u54cd\u53d1\u5149\u8d28\u91cf\uff0c\u56e0\u6b64\u53e6\u4e00\u79cd\u81ea\u50ac\u5316\u7684\u751f\u957f\u65b9\u6cd5\u9010\u6e10\u4e3a\u79d1\u5b66\u5bb6\u5173\u6ce8\u3002<\/p>\n

2.1 \u81ea\u50ac\u5316GaAs \/ AlGaAs NWs<\/b><\/strong><\/h4>\n

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\"\"<\/p>\n

\u56fe1 SEM\u3001HAADF-STEM\u56fe\u50cf\u548cEDX\u6210\u50cf<\/b><\/strong><\/p>\n

2.2 \u5728GaAs NWs\u7684\u4fa7\u58c1\u4fee\u9970\u4e0d\u540c\u7684\u7eb3\u7c73\u7ed3\u6784\u5f62\u6001<\/h4>\n

\u5728\u5404\u79cd\u81ea\u7ec4\u88c5\u751f\u957f\u6280\u672f\u4e2d\uff0c\u6db2\u6ef4\u5916\u5ef6\u662f\u53ef\u63a7\u6027\u8f83\u9ad8\u7684\uff0c\u540c\u65f6\u9002\u7528\u4e8e\u6676\u683c\u5339\u914d\u548c\u6676\u683c\u5931\u914d\u6750\u6599\u4f53\u7cfb\uff0c\u5236\u9020\u51fa\u8bb8\u591a\u7279\u6b8a\u7684\u7eb3\u7c73\u7ed3\u6784\uff0c\u5982\u56fe2\u6240\u793a\u7684\u91cf\u5b50\u70b9\uff08QDs\uff09\uff0c\u91cf\u5b50\u73af\uff08QRs\uff09\uff0c\u540c\u5fc3QRs\u548c\u8026\u5408QRs\u3002\u5c06\u8fd9\u4e9b\u6709\u8da3\u7684\u7eb3\u7c73\u7ed3\u6784\u7ed3\u5408\u5230NWs\u4e2d\uff0c\u7c7b\u4f3c\u4e8e\u5728NWs\u7684\u8868\u9762\u8fdb\u884c\u4e00\u4e9b\u7279\u6b8a\u7684\u201c\u4fee\u9970\u201d\uff0c\u4ee5\u5b9e\u73b0\u4e0d\u540c\u529f\u80fd\u7684\u7eb3\u7c73\u5f02\u8d28\u7ed3\u6784\u3002\u6587\u7ae0\u8ba8\u8bba\u4e86\u5982\u4f55\u6709\u6548\u63a7\u5236NWs\u8868\u9762\u5f02\u8d28\u7ed3\u6784\u7684\u5f62\u6001\uff0c\u4ee5\u5f62\u6210\u65b0\u7684\u4e0d\u540c\u5c42\u6b21\u7684\u7eb3\u7c73\u7ed3\u6784\uff0c\u4f7f\u57fa\u4e8e\u7eb3\u7c73\u7ebf\u7684\u5149\u7535\u5668\u4ef6\u8868\u73b0\u51fa\u53ef\u6269\u5c55\u7684\u6027\u80fd\u548c\u65b0\u5e94\u7528\u6f5c\u529b\u3002<\/p>\n

\"\"<\/p>\n

\u56fe2 \u7eb3<\/b><\/strong>\u7c73\u7ebf\u8868\u9762<\/b><\/strong>QDs\u3001QRs\u3001<\/b><\/strong>\u8026\u5408QRs<\/b><\/strong>\u7b49\u7684SEM\u56fe\u50cf<\/b><\/strong><\/p>\n

2.3 \u5e94\u53d8\u9a71\u52a8\u7684\u81ea\u7ec4\u88c5\u5206\u53c9GaAs NWs\u7684\u5408\u6210<\/h4>\n

\u5982\u56fe3\u6240\u793a\uff0c\u5728III-V\u65cf\u534a\u5bfc\u4f53NWs\u7684\u81ea\u7ec4\u88c5\u5916\u5ef6\u751f\u957f\u8fc7\u7a0b\u4e2d\uff0c\u901a\u8fc7\u5f15\u5165\u9ad8V\u65cf\u5143\u7d20\u4ee5\u7ed3\u6676III\u65cf\u6db2\u6ef4\uff0c\u751f\u957f\u6761\u4ef6\u53ef\u4ee5\u4ece\u8f74\u5411\u5207\u6362\u5230\u5f84\u5411\u3002\u7136\u800c\uff0c\u5982\u679c\u5728\u6b63\u786e\u7684\u6e29\u5ea6\u4e0b\u518d\u6b21\u6c89\u79efGa\u539f\u5b50\uff0c\u5219Ga\u6db2\u6ef4\u5c06\u201c\u5b58\u6d3b\u201d\uff0c\u5373VLS\u7684\u751f\u957f\u5c06\u5728NWs\u7684\u4fa7\u9762\u4e0a\u5f00\u59cb\uff0c\u5bfc\u81f4\u4e00\u4e9b\u5206\u679d\u7684\u5f62\u6210\u3002\u8fd9\u7c7b\u5206\u53c9NWs\u53ef\u80fd\u4f1a\u589e\u52a0\u7ed3\u6784\u590d\u6742\u6027\u5e76\u5b9e\u73b0\u66f4\u591a\u7684\u529f\u80fd\u3002\u6700\u8fd1\u8fd9\u79cd\u7ed3\u6784\u5df2\u7ecf\u7528\u4e8e\u7eb3\u7c73\u5668\u4ef6\u5982\u7eb3\u7c73LED\u9635\u5217\uff0c\u903b\u8f91\u7535\u8def\uff0c\u592a\u9633\u80fd\u7535\u6c60\u7b49\u3002<\/p>\n

\u5206\u53c9NWs\u5e94\u7528\u7684\u4e3b\u8981\u6311\u6218\u662f\u5982\u4f55\u901a\u8fc7\u5bf9\u7ef4\u5ea6\u548c\u7ec4\u6210\u7684\u7cbe\u786e\u63a7\u5236\uff0c\u5b9e\u73b0\u5bf9\u5176\u5f62\u8c8c\u7684\u8c03\u63a7\u3002\u4e8b\u5b9e\u4e0a\uff0c\u5806\u579b\u5c42\u9519\u548c\u4f4d\u9519\u662f\u5e94\u529b\u91ca\u653e\u7684\u201c\u6d3b\u8dc3\u573a\u6240\u201d\uff0c\u5f53\u4e3b\u8f74\u5728{110}\u9762\u4e0a\u5ef6\u4f38\u8d85\u51faGa\u6db2\u6ef4\u7684\u6269\u6563\u957f\u5ea6\u65f6\uff0c\u5f84\u5411\u751f\u957f\u8d77\u4e3b\u5bfc\u4f5c\u7528\u3002\u6b64\u65f6\uff0c\u7f3a\u9677\u6240\u5728\u7684\u4f4d\u7f6e\u66f4\u6613\u4e8e\u5f62\u6210Ga\u6db2\u6ef4\uff0c\u56e0\u6b64\uff0c\u63a7\u5236\u7f3a\u9677\u7684\u4f4d\u7f6e\u4fbf\u53ef\u4ee5\u7cbe\u786e\u63a7\u5236Ga\u6db2\u6ef4\u7684\u6210\u6838\u4f4d\u7f6e\u3002<\/p>\n

\"\"<\/p>\n

\u56fe3\u81ea\u50ac\u5316\u5206\u53c9GaAs NWs\u7684\u751f\u957f\u673a\u7406<\/b><\/strong><\/p>\n

3 \u57fa\u4e8e\u7eb3\u7c73\u7ebf<\/b><\/strong>\u91cf\u5b50\u70b9<\/b><\/strong>\u7cfb\u7edf\u7684\u5355\u5149\u5b50\u6e90<\/b><\/strong><\/h3>\n

3.1 GaAs\u5206\u53c9NWs\u4e2d\u7684InAs\/GaAs\u91cf\u5b50\u70b9<\/b><\/strong><\/h4>\n

\u7531\u4e8eInAs \/ GaAs NWs\u754c\u9762\u80fd\u91cf\u7684\u5dee\u5f02\u5e38\u5e38\u5bfc\u81f4GaAs NWs\u7684\u626d\u7ed3\u6216\u5206\u53c9\uff0cInAs QDs\u66f4\u503e\u5411\u4e8e\u5728GaAs\u7684\u4fa7\u58c1\u6210\u6838\u3002\u6587\u7ae0\u8ba8\u8bba\u901a\u8fc7\u81ea\u7ec4\u7ec7\u751f\u957f\u65b9\u6cd5\u5c06InAs\u91cf\u5b50\u70b9\u5d4c\u5165GaAs\/AlGaAs\u7eb3\u7c73\u7ebf\u8154\u4e2d\uff0c\u5982\u56fe4\u6240\u793a\uff0c\u7ecf\u9ad8\u5206\u8fa8TEM\u7ed3\u679c\u9a8c\u8bc1\uff0cInAs\u91cf\u5b50\u70b9\u6070\u5de7\u4f4d\u4e8e\u7eb3\u7c73\u7ebf\u8154\u7684\u5206\u53c9\u5904\uff0c\u5468\u56f4\u4e3aGaAs\/AlGaAs\u5305\u88f9\u800c\u5f62\u6210\u7684\u4e09\u7ef4\u53d7\u9650\u7ed3\u6784\u3002\u6587\u7ae0\u5c55\u793a\u4e86\u5b83\u662f\u4e00\u4e2a\u975e\u5e38\u7eaf\u6b63\u7684\u5355\u5149\u5b50\u6e90\uff0c\u5206\u53c9\u8d77\u5230\u4e86\u66f4\u597d\u7684\u9650\u5236\u4f5c\u7528\u548c\u805a\u5149\u6548\u5e94\u3002<\/p>\n

\"\"<\/p>\n

\u56fe4 \u5177\u6709InAs\u91cf\u5b50\u70b9\u7684GaAs\u5206\u53c9NW\u7684\u5178\u578bSEM\u56fe\u53caSTEM\u5206\u6790<\/b><\/strong><\/p>\n

3.2 GaAs\/AlGaAs NWs\u4e2d\u7684GaAs\u91cf\u5b50\u70b9<\/h4>\n

\u8003\u8651\u5230GaAs\u91cf\u5b50\u70b9\u4e0eAlGaAs\u6676\u683c\u5339\u914d\uff0c\u6587\u7ae0\u8ba8\u8bba\u5c06GaAs\u91cf\u5b50\u70b9\u5d4c\u5165GaAs\/AlGaAs\u7eb3\u7c73\u7ebf\u8154\u4e2d\uff0c\u5982\u56fe5\u6240\u793a\uff0c\u901a\u8fc777 K\u4e0b\u7eb3\u7c73\u7ebf\u7684\u9634\u6781\u8367\u5149\u6210\u50cf\u5206\u6790\uff0c\u9996\u6b21\u5728\u6b64\u6e29\u5ea6\u4e0b\u89c2\u6d4b\u5230\u4e86\u91cf\u5b50\u70b9\u5728\u7eb3\u7c73\u7ebf\u4e0a\u7684\u5206\u5e03\u3002\u9a8c\u8bc1\u4e86GaAs\u91cf\u5b50\u70b9\u4f4d\u4e8eGaAs\/AlGaAs\u6838\u58f3\u7eb3\u7c73\u7ebf\u7684\u4fa7\u58c1\u4e0a\uff0c\u8fde\u7eed\u6fc0\u53d1\u4e0b\u5355\u5149\u5b50\u7684\u53d1\u5c04\u901f\u7387\u4e3a8 MHz\uff0c\u5176\u4e8c\u9636\u5173\u8054\u51fd\u6570g2<\/sup>(0)\u4e3a0.15\uff082\uff09\uff0c\u4ecd\u5177\u6709\u5f88\u597d\u7684\u53cd\u805a\u675f\u6548\u5e94\u3002\u6587\u7ae0\u8fd8\u8ba8\u8bba\u4e86\u901a\u8fc7\u5c1d\u8bd5\u5728AlGaAs\u91cf\u5b50\u73af\u4e2d\u5f15\u5165GaAs\u91cf\u5b50\u70b9\uff0c\u4e3a\u5b9e\u73b0\u7eb3\u7c73\u7ebf\u4fa7\u58c1\u7684\u91cf\u5b50\u70b9\u5b9a\u4f4d\u4f5c\u4e00\u5b9a\u7684\u94fa\u57ab\u3002\u5149\u8c31\u6d4b\u8bd5\u7ed3\u679c\u663e\u793a\uff0c\u5728\u5f88\u957f\u7684\u4e00\u6bb5\u5149\u8c31\u8303\u56f4\u5185\u53ea\u5b58\u5728\u4e00\u4e2a\u91cf\u5b50\u70b9\u7684\u53d1\u5149\uff0c\u4ece\u67d0\u79cd\u610f\u4e49\u4e0a\u5b9e\u73b0\u4e86\u5bf9\u5355\u4e2a\u91cf\u5b50\u70b9\u7684\u5b9a\u4f4d\u53ca\u63d0\u53d6\u3002<\/p>\n

\"\"<\/p>\n

\u56fe5 <\/b><\/strong>GaAs\u7eb3\u7c73\u7ebf\u91cf\u5b50\u70b9\u7684<\/b><\/strong>CL\u6210\u50cf\u5206\u6790<\/b><\/strong><\/p>\n

4 \u5355\u4e00\u91cf\u5b50\u6001\u7eb3\u7c73\u7c92\u5b50\u7684\u539f\u4f4d\u63a2\u6d4b\u548c\u5149\u7ea4\u96c6\u6210<\/h3>\n

\u76ee\u524d\u56fd\u9645\u4e0a\u901a\u7528\u7684\u57fa\u4e8e\u91cf\u5b50\u70b9\u7684\u5355\u5149\u5b50\u6e90\u9700\u8981\u590d\u6742\u7684\u5149\u5b66\u4eea\u5668\u3001\u5149\u8def\u4e0e\u4e25\u683c\u7684\u6821\u51c6\u6280\u672f\u4ee5\u63d0\u4f9b\u91cf\u5b50\u901a\u4fe1\u6280\u672f\u7684\u9a8c\u8bc1\u6027\u8bd5\u9a8c\uff0c\u5c1a\u6ca1\u6709\u201c\u70ed\u63d2\u62d4\u201d\u5f0f\u5546\u54c1\u5316\u7684\u91cf\u5b50\u70b9\u5355\u5149\u6e90\u4f5c\u4e3a\u5408\u683c\u7684\u4e0b\u4e00\u4ee3\u91cf\u5b50\u901a\u4fe1\u4fe1\u53f7\u6e90\uff0c\u5982\u4f55\u5b9e\u73b0\u5355\u5149\u5b50\u6e90\u5668\u4ef6\u4e0e\u5149\u7ea4\u8f7d\u4f53\u7684\u9ad8\u6548\u7387\u8026\u5408\u662f\u5176\u4e2d\u7684\u4e3b\u8981\u96be\u70b9\u3002\u7531\u4e8e\u81ea\u7ec4\u7ec7\u65b9\u6cd5\u751f\u957f\u7684\u91cf\u5b50\u70b9\u4f4d\u7f6e\u7684\u968f\u673a\u6027\u4ee5\u53ca\u4f4e\u6e29\u5de5\u4f5c\u73af\u5883\uff0c\u91cf\u5b50\u70b9\u5668\u4ef6\u4e0e\u5149\u7ea4\u7684\u8026\u5408\u8981\u6bd4\u666e\u901a\u7684\u4e8c\u6781\u7ba1\u3001\u6fc0\u5149\u5668\u7b49\u7684\u8026\u5408\u96be\u5ea6\u5927\u5f88\u591a\u3002\u5b9e\u9a8c\u5ba4\u4e00\u822c\u4f7f\u7528\u5171\u805a\u7126\u7cfb\u7edf\u901a\u8fc7\u5927\u6570\u503c\u5b54\u5f84\u7684\u900f\u955c\u5bf9\u5355\u5149\u5b50\u8fdb\u884c\u6536\u96c6\uff0c\u4f46\u8be5\u7cfb\u7edf\u4e25\u91cd\u4f9d\u8d56\u4e8e\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\uff0c\u4e14\u5b58\u5728\u6027\u4ef7\u6bd4\u4f4e\u4e0e\u4fbf\u643a\u6027\u5dee\u7684\u4e25\u91cd\u5f31\u70b9\uff0c\u4e0d\u4fbf\u4e8e\u4f5c\u4e3a\u5546\u4e1a\u5316\u7528\u9014\u7684\u5355\u5149\u5b50\u4fe1\u53f7\u53d1\u5c04\u5668\u4ef6\u3002\u6587\u7ae0\u63d0\u51fa\u4e00\u79cd\u5355\u6a21\u5149\u7ea4\u8026\u5408\u7eb3\u7c73\u7ebf\u91cf\u5b50\u70b9\u7684\u65b9\u6cd5\uff0c\u5982\u56fe6\u6240\u793a\u3002\u76f8\u6bd4\u4e8e\u5e73\u9762\u91cf\u5b50\u70b9\u6765\u8bf4\uff0c\u7eb3\u7c73\u7ebf\u91cf\u5b50\u70b9\u4e3a\u6211\u4eec\u53d6\u5f97\u5355\u4e2a\u91cf\u5b50\u70b9\u63d0\u4f9b\u4e86\u826f\u597d\u7684\u5e73\u53f0\uff0c\u7eb3\u7c73\u7ebf\u672c\u8eab\u53ef\u4ee5\u4f5c\u4e3a\u4e00\u4e2a\u72ec\u7acb\u7684\u5149\u7535\u5b50\u5668\u4ef6\uff0c\u540c\u65f6\u5177\u5907\u6613\u4e8e\u4e0e\u886c\u5e95\u5206\u79bb\u7684\u7279\u6027\u3002\u524d\u6587\u5df2\u7ecf\u9a8c\u8bc1\u7eb3\u7c73\u7ebf\u91cf\u5b50\u70b9\u91c7\u7528\u6db2\u6c2e\u6e29\u5ea6\u4e0b\u80fd\u7a33\u5b9a\u53d1\u5c04\u5355\u5149\u5b50\uff0c\u901a\u8fc7\u6469\u64e6\u7684\u65b9\u6cd5\u4ece\u886c\u5e95\u8868\u9762\u8f6c\u79fb\u81f3\u5149\u7ea4\u7aef\u9762\uff0c\u7eb3\u7c73\u7ebf\u901a\u8fc7\u5206\u5b50\u4f5c\u7528\u529b\u5438\u9644\u4e8e\u5149\u7ea4\u7aef\u9762\uff0c\u5355\u6a21\u5149\u7ea4\u540c\u65f6\u4f5c\u4e3a\u6fc0\u53d1\u548c\u68c0\u6d4b\u63a2\u9488\uff0c\u5728\u6db2\u6c2e\u6e29\u5ea6\u4e0b\u641c\u7d22QDs\u53d1\u5149\u3002\u901a\u8fc7\u6bd4\u8f83\u5171\u7126\u663e\u5fae\u955c\u8bbe\u7f6e\u548c\u5149\u7ea4\u96c6\u6210\u8bbe\u7f6e\u4e2d\u5355\u4e2aQDs\u7684PL\u5f3a\u5ea6\uff0c\u8bc1\u660e\u4e86\u5355\u4e2aQD\u6fc0\u5b50\u53d1\u5c04\u4e0eSMF\u7684\u6709\u6548\u8026\u5408\uff0c\u5728\u5bbd\u5e26\u6ce2\u957f\u4e0b\u7684\u6536\u96c6\u6548\u7387\u4e3a\u301c70\uff05\u3002<\/p>\n

\"\"<\/p>\n

\u56fe6 \u5fae\u533aPL\u548c\u5149\u7ea4\u96c6\u6210\u5355\u5149\u5b50\u6e90\u5b9e\u9a8c\u8bbe\u7f6e\u7684\u793a\u610f\u56fe<\/b><\/strong><\/p>\n

5 \u5177\u6709\u77ed\u5bff\u547d\u548c\u957f\u5bff\u547d\u7684ZB\/WZ GaAs QDS<\/h3>\n

\u6b63\u5982Heiss\u7684\u5de5\u4f5c\u6240\u62a5\u9053\uff0cGaAs QD\u4f4d\u4e8e\u7eb3\u7c73\u7ebf\u4e2d\u7684AlGaAs\/ GaAs\u58f3-\u6838\u754c\u9762\u5904\uff0c\u7531\u9ad8\u94dd\u7ec4\u5206Al(Ga)As\u5c42\u8986\u76d6\uff0c\u5176\u4e2d\uff0c\u6709\u4e00\u5c42Al(Ga)As\u5305\u88f9\u5c42\u4ecb\u4e8e\u7eb3\u7c73\u7ebfGaAs\u5916\u58f3\u5c42\u548cGaAs QD\u4e4b\u95f4\u4f5c\u4e3a\u9650\u5236\u52bf\u5792\u3002\u4e3a\u6a21\u62df\u5176\u53d1\u5c04\u7279\u6027\uff0c\u672c\u6587\u901a\u8fc7\u6709\u6548\u8d28\u91cf\u6cd5\u6c42\u89e3\u4e86\u5355\u7c92\u5b50\u4e09\u7ef4\u7a33\u6001\u859b\u5b9a\u8c14\u65b9\u7a0b\uff0c\u53d1\u73b0QD\u80fd\u7ea7\u7684\u53d1\u5149\u7279\u6027\u5bf9\u8be5Al(Ga)As\u52bf\u5792\u5c42\u654f\u611f\u3002\u6b64\u5916\uff0c\u5b83\u4eec\u4e5f\u53d7\u5230\u9644\u8fd1\u7f3a\u9677\u7684\u5f71\u54cd\uff0c\u5982\u8868\u9762\u6001\u548c\u9519\u914d\u7f3a\u9677\u3002<\/p>\n

\"\"<\/p>\n

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\u6587\u732e\u94fe\u63a5\uff1aSelf-assembled semiconductor quantum dots decorating the facets of GaAs nanowire for single-photon emission<\/a>\uff08NSR,2017,DOI:10.1093\/nsr\/nwx042\uff09<\/p>\n

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