{"id":21665,"date":"2015-07-07T00:08:31","date_gmt":"2015-07-06T16:08:31","guid":{"rendered":"https:\/\/case.ntu.edu.tw\/blog\/?p=21665"},"modified":"2018-08-01T15:57:29","modified_gmt":"2018-08-01T07:57:29","slug":"%e3%80%90%e5%a5%88%e7%b1%b3%e6%9d%90%e6%96%99%e3%80%91%e5%85%a9%e5%80%8b%e7%99%bc%e7%86%b1%e6%ba%90%e9%9d%a0%e5%be%97%e8%bf%91%e5%8f%8d%e8%80%8c%e6%9b%b4%e8%83%bd%e6%95%a3%e7%86%b1%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/case.ntu.edu.tw\/blog\/?p=21665","title":{"rendered":"\u3010\u5948\u7c73\u6750\u6599\u3011\u5169\u500b\u767c\u71b1\u6e90\u9760\u5f97\u8fd1\u53cd\u800c\u66f4\u80fd\u6563\u71b1\uff1f"},"content":{"rendered":"<p><span style=\"color: #333399;\"><strong>\u25a0\u7a4d\u9ad4\u96fb\u8def\u4e0a\u5982\u679c\u628a\u5169\u500b\u96fb\u6676\u9ad4\u9760\u5f97\u5f88\u8fd1\u4e00\u5b9a\u5f88\u96e3\u6563\u71b1\u5427\uff01\u4f46\u6709\u79d1\u5b78\u5bb6\u4e0d\u9019\u9ebc\u8a8d\u70ba\u3002<\/strong><\/span><\/p>\n<figure id=\"attachment_21668\" aria-describedby=\"caption-attachment-21668\" style=\"width: 640px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-21668\" src=\"http:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2015\/06\/hotnanostruc.jpg\" alt=\"Credit: Kathy Hoogeboom-Pot and the Kapteyn\/Murnane Group\" width=\"640\" height=\"397\" srcset=\"https:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2015\/06\/hotnanostruc.jpg 640w, https:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2015\/06\/hotnanostruc-300x186.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><figcaption id=\"caption-attachment-21668\" class=\"wp-caption-text\">Credit: Kathy Hoogeboom-Pot and the Kapteyn\/Murnane Group<\/figcaption><\/figure>\n<p><strong>\u64b0\u6587\uff5c<\/strong>\u65b9\u7a0b\u6bc5<\/p>\n<p>\u5047\u8a2d\u6709\u5169\u500b\u6703\u767c\u71b1\u7684\u7269\u9ad4\uff0c\u61c9\u8a72\u662f\u8ddd\u96e2\u8d8a\u9060\u6563\u71b1\u6548\u679c\u8d8a\u597d\u3002\u56e0\u6b64\u7576\u4eba\u985e\u628a\u96fb\u5b50\u5143\u4ef6\u8d8a\u505a\u8d8a\u5c0f\u3001\u8d8a\u505a\u8d8a\u5bc6\u96c6\u6642\uff0c\u6676\u7247\u7684\u6563\u71b1\u80fd\u529b\u5c31\u6210\u70ba\u4e00\u5927\u554f\u984c\uff0c\u4f46\u9019\u500b\u518d\u76f4\u89ba\u4e0d\u904e\u7684\u89c0\u5ff5\u537b\u6709\u79d1\u5b78\u5bb6\u63d0\u51fa\u5b8c\u5168\u76f8\u53cd\u7684\u8aaa\u6cd5\uff1a\u5982\u679c\u6709\u5169\u500b\u767c\u71b1\u9ad4\u5c3a\u5bf8\u5920\u5c0f\uff0c\u5c0f\u5230\u53ea\u6709\u5948\u7c73\u7b49\u7d1a\uff0c\u8ddd\u96e2\u4e5f\u53ea\u6709\u5948\u7c73\u7b49\u7d1a\uff0c\u6563\u71b1\u80fd\u529b\u4e26\u4e0d\u6703\u6bd4\u8f03\u5dee\u3002<\/p>\n<p>\u8981\u4e86\u89e3\u9019\u500b\u9055\u53cd\u76f4\u89ba\u7684\u73fe\u8c61\uff0c\u5c31\u8981\u5148\u4e86\u89e3\u300c\u6563\u71b1\u300d\u662f\u4ec0\u9ebc\uff0c\u9019\u88e1\u7684\u6563\u71b1\u662f\u6307\u56fa\u9ad4\u4e2d\u7684\u50b3\u5c0e\uff0c\u800c\u975e\u5c0d\u6d41\u6216\u8f3b\u5c04\u3002\u4e16\u754c\u4e0a\u6240\u6709\u7684\u56fa\u9ad4\u7121\u4e00\u4f8b\u5916\uff0c\u90fd\u6703\u9707\u52d5\uff0c\u9019\u7a2e\u9707\u52d5\u662f\u71b1\u7684\u4e00\u7a2e\u8868\u73fe\u3002\u79d1\u5b78\u4e0a\u628a\u9019\u6a23\u7684\u9707\u52d5\u91cf\u5b50\u5316\u70ba\u300c\u8072\u5b50\u300d(phonon)\uff0c\u8072\u5b50\u5728\u56fa\u9ad4\u5167\u7684\u7522\u751f\u3001\u6d88\u6ec5\u3001\u64f4\u6563\u6216\u78b0\u649e\u90fd\u4f34\u96a8\u8457\u71b1\u91cf\u6539\u8b8a\u3002<!--more--><\/p>\n<p>\u6211\u5011\u53ef\u4ee5\u628a\u8072\u5b50\u60f3\u50cf\u6210\u4e00\u9846\u5e36\u6709\u80fd\u91cf\u7684\u7403\uff0c\u7403\u8d8a\u591a\u3001\u8d8a\u96c6\u4e2d\u5728\u67d0\u8655\uff0c\u5c31\u4ee3\u8868\u8a72\u8655\u6eab\u5ea6\u8d8a\u9ad8\u3002\u6eab\u5ea6\u68af\u5ea6\u8da8\u52d5\u8072\u5b50\u64f4\u6563\uff0c\u8072\u5b50\u5f9e\u6fc3\u5ea6\u9ad8\u7684\u5730\u65b9\u64f4\u6563\u5230\u6fc3\u5ea6\u4f4e\u7684\u5730\u65b9\uff0c\u4e26\u5728\u904e\u7a0b\u4e2d\u4e0d\u65b7\u4e92\u76f8\u78b0\u649e\uff0c\u5176\u4e2d\u975e\u5f48\u6027\u78b0\u649e\u5c31\u6703\u8b93\u71b1\u5c0e\u7387\u8b8a\u5dee\u3002\u4f46\u662f\uff0c\u8072\u5b50\u4e26\u4e0d\u662f\u4e00\u96e2\u958b\u767c\u71b1\u6e90\u5c31\u4e00\u5b9a\u6703\u78b0\u5230\u5176\u4ed6\u8072\u5b50\uff0c\u7121\u8ad6\u8072\u5b50\u518d\u600e\u9ebc\u5bc6\u96c6\uff0c\u7e3d\u6709\u4e9b\u5e78\u904b\u7684\u8072\u5b50\u5c31\u662f\u6bd4\u8f03\u4e0d\u5bb9\u6613\u9047\u78b0\u5230\u5176\u4ed6\u8072\u5b50\uff0c\u6240\u4ee5\u53ef\u4ee5\u5728\u56fa\u9ad4\u5167\u79fb\u52d5\u8f03\u9577\u7684\u8ddd\u96e2\u3002\u6709\u4e9b\u8072\u5b50\u8d70\u5f97\u6bd4\u8f03\u9060\uff0c\u6709\u4e9b\u6bd4\u8f03\u8fd1\uff0c\u56e0\u6b64\u7d71\u8a08\u4e0a\u5b9a\u7fa9\u4e86\u300c\u5e73\u5747\u81ea\u7531\u5f91\u300d(mean free path)\u4f86\u63cf\u8ff0\u9019\u500b\u884c\u70ba\uff0c\u5e73\u5747\u81ea\u7531\u5f91\u5c31\u662f\u4e00\u500b\u8072\u5b50\u300c\u5e73\u5747\u300d\u8981\u8d70\u591a\u5c11\u8ddd\u96e2\u624d\u6703\u8ddf\u53e6\u4e00\u500b\u8072\u5b50\u9032\u884c\u975e\u5f48\u6027\u78b0\u649e(\u975e\u5f48\u6027\u78b0\u649e\u6703\u963b\u7919\u8072\u5b50\u7684\u79fb\u52d5\uff0c\u53ef\u4ee5\u60f3\u50cf\u62ff\u6d77\u7dbf\u7403\u649e\u5176\u4ed6\u6d77\u7dbf\u7403\uff0c\u6d77\u7dbf\u7403\u5011\u6839\u672c\u8d70\u4e0d\u9060\uff1b\u4f46\u662f\u7528\u649e\u7403\u53bb\u649e\u5176\u4ed6\u649e\u7403\uff0c\u6bd4\u6d77\u7dbf\u7403\u66f4\u63a5\u8fd1\u5f48\u6027\u78b0\u649e\uff0c\u5176\u4ed6\u649e\u7403\u5c31\u6703\u8d70\u6bd4\u8f03\u9060\u4e86)\u3002\u5e73\u5747\u81ea\u7531\u5f91\u56e0\u6750\u6599\u800c\u7570\uff0c\u4f8b\u5982\u77fd\uff0c\u8072\u5b50\u5728\u77fd\u88e1\u7684\u5e73\u5747\u81ea\u7531\u5f91\u5c31\u5927\u65bc\u4e00\u5fae\u7c73(\u03bcm)\u3002<\/p>\n<p>\u5229\u7528\u8072\u5b50\u4f86\u89e3\u91cb\u71b1\u50b3\u5c0e\uff0c\u5c31\u662f\u53ef\u4ee5\u5408\u7406\u89e3\u91cb\u9019\u500b\u9055\u53cd\u76f4\u89ba\u7684\u73fe\u8c61\u3002<\/p>\n<p>\u5047\u8a2d\u5169\u500b\u767c\u71b1\u6e90\u7684\u5c3a\u5bf8\u5728\u6578\u516c\u5206\u5de6\u53f3\uff0c\u4ee5\u9593\u9694\u4e00\u516c\u5206\u653e\u7f6e\u5728\u4e00\u8d77\u3002\u9019\u6642\u5019\u8072\u5b50\u7684\u904b\u52d5\u6a5f\u5236\u5c31\u985e\u4f3c\u64f4\u6563(\u4e5f\u5c31\u662f\u50b3\u7d71\u7684\u50b3\u71b1\u6a5f\u5236)\uff0c\u85c9\u7531\u4e0d\u65b7\u7684\u78b0\u649e\uff0c\u8072\u5b50\u5f9e\u9ad8\u6fc3\u5ea6\u7684\u5730\u65b9\u79fb\u52d5\u5230\u4f4e\u6fc3\u5ea6\u5730\u65b9\uff0c\u71b1\u91cf\u4e5f\u5c31\u5f9e\u9ad8\u6eab\u8655\u64f4\u6563\u5230\u4f4e\u6eab\u8655\u3002\u64f4\u6563\u7684\u672c\u8cea\u5c31\u662f\u78b0\u649e\uff0c\u5047\u8a2d\u5e73\u5747\u6bcf\u4e00\u5fae\u7c73\u5c31\u767c\u751f\u4e00\u6b21\u975e\u5f48\u6027\u78b0\u649e\uff0c\u4e26\u50b3\u905e\u71b1\u91cf\uff0c\u56e0\u70ba\u767c\u71b1\u6e90\u7684\u5c3a\u5ea6\u9060\u5927\u65bc\u5e73\u5747\u81ea\u7531\u5f91\uff0c\u8072\u5b50\u975e\u5f48\u6027\u78b0\u649e\u7684\u6b21\u6578\u975e\u5e38\u591a\uff0c\u6240\u4ee5\u64f4\u6563\u6a21\u578b\u624d\u80fd\u5408\u7406\u89e3\u91cb\u71b1\u50b3\u5c0e\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5728\u5948\u7c73\u5c3a\u5ea6\u4e0b\u5c31\u4e0d\u662f\u9019\u9ebc\u4e00\u56de\u4e8b\u4e86\u3002\u5047\u8a2d\u5169\u500b20\u5948\u7c73\u7684\u767c\u71b1\u6e90\u9593\u969420\u5948\u7c73\u64fa\u5728\u4e00\u8d77\uff0c\u8072\u5b50\u5e73\u5747\u53ef\u4ee5\u8d70\u4e00\u5fae\u7c73\uff0820\u5948\u7c73\u768450\u500d\uff09\u624d\u767c\u751f\u975e\u5f48\u6027\u78b0\u649e\uff0c\u4e5f\u5c31\u662f\u8aaa\u8072\u5b50\u53ef\u4ee5\u300c\u9003\u300d\u6bd4\u6211\u5011\u5229\u7528\u64f4\u6563\u6a21\u578b\u9810\u6e2c\u5f97\u66f4\u9060\uff0c\u65e2\u7136\u8072\u5b50\u4e0d\u6703\u5728\u77ed\u8ddd\u96e2\u5167\u975e\u5f48\u6027\u78b0\u649e\uff0c\u9019\u500b\u8ddd\u96e2\u5167\u7684\u71b1\u50b3\u905e\u5c31\u6703\u975e\u5e38\u9806\u5229\uff0c\u56e0\u6b64\u6563\u71b1\u80fd\u529b\u4e5f\u5c31\u6bd4\u50b3\u7d71\u64f4\u6563\u6a21\u578b\u9810\u6e2c\u7684\u66f4\u597d\u3002<\/p>\n<p>\u9019\u500b\u5b8c\u5168\u9055\u53cd\u76f4\u89ba\u7684\u73fe\u8c61\u662f\u7531\u79d1\u7f85\u62c9\u591a\u5927\u5b78(University of Colorado)\u53ca\u52de\u502b\u65af\u67cf\u514b\u840a\u570b\u5bb6\u5be6\u9a57\u5ba4(Lawrence Berkeley National Laboratory)\u5171\u540c\u767c\u73fe\u7684\uff0c\u4ed6\u5011\u57282010\u5e74\u767c\u73fe\u9019\u500b\u6a5f\u5236\u4e26\u767c\u8868\u5728\u300a\u81ea\u7136\u2027\u6750\u6599\u300b\u671f\u520a(<em>Nature Materials<\/em>)\uff0c\u4e26\u57282015\u5e74\u9032\u884c\u66f4\u5b8c\u6574\u7684\u91cf\u6e2c\u767c\u8868\u5728<em>Proceedings of the National Academy of Sciences<\/em>\u3002<\/p>\n<p>\u9019\u9805\u767c\u73fe\u5c0d\u65bcIC\u7522\u696d\u6216\u662f\u7814\u7a76\u5948\u7c73\u79d1\u6280\u7684\u4eba\u4f86\u8aaa\u662f\u4e00\u5927\u798f\u97f3\uff0c\u56e0\u70ba\u5927\u5bb6\u773c\u524d\u7684\u56f0\u96e3\u8b8a\u7c21\u55ae\u4e86\uff0c\u7531\u65bc\u5143\u4ef6\u904e\u65bc\u5bc6\u96c6\u9020\u6210\u7684\u6563\u71b1\u554f\u984c\u6c92\u6709\u60f3\u50cf\u4e2d\u7684\u56b4\u91cd\uff0c\u7a4d\u9ad4\u96fb\u8def\u7684\u6563\u71b1\u80fd\u529b\u4e5f\u5c07\u6bd4\u9810\u671f\u4e2d\u7684\u597d\uff0c\u96d6\u7136\u9019\u4e0d\u4ee3\u8868\u6563\u71b1\u5df2\u4e0d\u518d\u662f\u500b\u96e3\u984c\uff0c\u4f46\u8ddd\u96e2\u4eba\u985e\u89e3\u6c7a\u9019\u554f\u984c\u53c8\u66f4\u524d\u9032\u4e00\u6b65\u4e86\u3002\uff08\u6216\u662f\u9019\u500b\u554f\u984c\u81ea\u5df1\u5411\u6211\u5011\u8d70\u9032\u4e86\u4e00\u6b65\u3002\uff09<\/p>\n<p><strong>\u539f\u59cb\u8ad6\u6587\uff1a<\/strong><\/p>\n<ol>\n<li>Hoogeboom-Pot, Kathleen M., Jorge N. Hernandez-Charpak, Xiaokun Gu, Travis D. Frazer, Erik H. Anderson, Weilun Chao, Roger W. Falcone et al. \"A new regime of nanoscale thermal transport: Collective diffusion increases dissipation efficiency.\"\u00a0<em>Proceedings of the National Academy of Sciences<\/em>\u00a0112, no. 16 (2015): 4846-4851.<\/li>\n<li>Siemens, Mark E., Qing Li, Ronggui Yang, Keith A. Nelson, Erik H. Anderson, Margaret M. Murnane, and Henry C. Kapteyn. \"Quasi-ballistic thermal transport from nanoscale interfaces observed using ultrafast coherent soft X-ray beams.\"<em>Nature materials<\/em>\u00a09, no. 1 (2010): 26-30.<\/li>\n<\/ol>\n<p><strong>\u5176\u4ed6\u53c3\u8003\u8cc7\u6599\u8207\u5716\u7247\u51fa\u8655\uff1a<\/strong><a href=\"http:\/\/phys.org\/news\/2015-06-hot-nanostructures-cool-faster-physically.html\" target=\"_blank\" rel=\"noopener noreferrer\">Hot nanostructures cool faster when they are physically close together<\/a>.<\/p>\n<p><span style=\"color: #333399;\"><strong>--<\/strong><\/span><br style=\"color: #000000;\" \/><span style=\"color: #333399;\"><strong>\u4f5c\u8005\uff1a\u65b9\u7a0b\u6bc5 \u79d1\u6559\u4e2d\u5fc3\u7279\u7d04\u5beb\u624b\uff0c\u5f9e\u4e8b\u79d1\u666e\u6587\u7ae0\u5beb\u4f5c\u3002<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/line.me\/R\/ti\/p\/%40fcx6182w\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" class=\"alignnone\" src=\"https:\/\/scdn.line-apps.com\/n\/line_add_friends\/btn\/zh-Hant.png\" alt=\"\u52a0\u5165\u597d\u53cb\" width=\"212\" height=\"36\" border=\"0\"><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u25a0\u7a4d\u9ad4\u96fb\u8def\u4e0a\u5982\u679c\u628a\u5169\u500b\u96fb\u6676\u9ad4\u9760\u5f97\u5f88\u8fd1\u4e00\u5b9a<\/p>\n","protected":false},"author":20,"featured_media":28965,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1023,3293],"tags":[200,1593,1744,1942,1046],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/case.ntu.edu.tw\/blog\/wp-content\/uploads\/2015\/07\/hotnanostruc.jpg","_links":{"self":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/21665"}],"collection":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=21665"}],"version-history":[{"count":9,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/21665\/revisions"}],"predecessor-version":[{"id":32294,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/posts\/21665\/revisions\/32294"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=\/wp\/v2\/media\/28965"}],"wp:attachment":[{"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=21665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/case.ntu.edu.tw\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}