{"id":165132,"date":"2019-01-21T06:08:16","date_gmt":"2019-01-20T22:08:16","guid":{"rendered":"\/\/m.iemloyee.com\/?p=165132"},"modified":"2019-01-20T22:13:12","modified_gmt":"2019-01-20T14:13:12","slug":"%e6%97%a5%e6%9c%ac%e4%b8%b0%e7%94%b0%e5%b7%a5%e4%b8%9a%e5%a4%a7%e5%ad%a6nat-commun-%e5%9c%a8%e9%87%91%e5%b1%9ecu2se%e4%b8%ad%e5%8f%91%e7%8e%b0%e5%b7%a8%e5%a4%a7%e7%9a%84%e5%a1%9e%e8%b4%9d%e5%85%8b","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=165132","title":{"rendered":"\u65e5\u672c\u4e30\u7530\u5de5\u4e1a\u5927\u5b66Nat. Commun.: \u5728\u91d1\u5c5eCu2Se\u4e2d\u53d1\u73b0\u5de8\u5927\u7684\u585e\u8d1d\u514b\u6548\u5e94"},"content":{"rendered":"

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

\u5728\u8fc7\u53bb\u7684\u51e0\u5341\u5e74\u4e2d\uff0c\u70ed\u7535\u6750\u6599\uff08TE\uff09\u56e0\u4e3a\u80fd\u591f\u5c06\u5e9f\u70ed\u8f6c\u5316\u4e3a\u6709\u7528\u7684\u7535\u80fd\uff0c\u800c\u5f97\u5230\u4e86\u7cfb\u7edf\u548c\u5168\u9762\u7684\u7814\u7a76\u3002\u70ed\u7535\u6750\u6599\u7684\u80fd\u91cf\u8f6c\u5316\u6548\u7387ZT=S2<\/sup>\u03c3T\/\u03ba\uff0c\u5176\u4e2dS\uff0c\u03c3\uff0cT\u548c\u03ba\u5206\u522b\u4ee3\u8868\u585e\u8d1d\u514b\u7cfb\u6570\uff0c\u7535\u5bfc\u7387\uff0c\u7edd\u5bf9\u6e29\u5ea6\u548c\u70ed\u5bfc\u7387\u3002\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u5df2\u7ecf\u53d1\u73b0\u548c\u5f00\u53d1\u4e86\u591a\u79cd\u70ed\u7535\u6750\u6599\uff0c\u5176\u4e2d\u4e00\u4e9b\u5177\u6709\u8f83\u9ad8\u7684ZT\u503c\uff0c\u4f46\u7531\u4e8e\u6574\u4f53\u6027\u80fd\u4e0d\u8db3\uff0c\u5e76\u4e0d\u80fd\u5e7f\u6cdb\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u3002<\/p>\n

\u6709\u53f2\u4ee5\u6765\u62a5\u5bfc\u7684ZT\u7684\u6700\u5927\u503c\u662f\u5728\u5355\u6676SnSe3<\/sub>\u4e2d\u53d1\u73b0\u7684ZT=2.6\u3002\u7136\u800c\u6700\u5927ZT\u6240\u5bf9\u5e94\u7684\u6e29\u5ea6\u4e3a900K\uff0c\u5176\u4ed6\u65b9\u6cd5\u5728\u8fd9\u4e2a\u6e29\u5ea6\u4e0b\u4f1a\u5177\u6709\u66f4\u9ad8\u7684\u80fd\u91cf\u8f6c\u6362\u6548\u7387\u3002\u5728300~400K\u7684\u4e2d\u4f4e\u6e29\u8303\u56f4\u5185\uff0c\u5927\u91cf\u7684\u5e9f\u70ed\u88ab\u6392\u653e\u5230\u5468\u56f4\u73af\u5883\u4e2d\uff0c\u76ee\u524d\u8fd8\u6ca1\u6709\u4efb\u4f55\u6709\u6548\u7684\u65b9\u6cd5\u53ef\u4ee5\u4ea7\u751f\u7535\u80fd\uff0c\u56e0\u6b64\uff0c\u70ed\u7535\u6750\u6599\u7684\u5f00\u53d1\u5341\u5206\u5fc5\u8981\u3002\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u57fa\u4e8eBi2<\/sub>Te3<\/sub>\u7684\u6750\u6599\u5728\u8be5\u6e29\u5ea6\u8303\u56f4\u5185\u5177\u6709\u6700\u4f73\u6027\u80fd\uff0c\u5176ZT\u503c\u9ad8\u8fbe2.08\u3002\u7136\u800c\uff0c\u8fd9\u4e9bZT\u503c\u4ecd\u7136\u5b58\u5728\u4e89\u8bae\u3002<\/p>\n

\u6240\u6709\u8fd9\u4e9b\u6750\u6599\u90fd\u5177\u6709\u975e\u5e38\u5c0f\u7684\u6676\u683c\u70ed\u5bfc\u7387\u5c0f\u4e8e1.0W\/m\/K\u4ee5\u53ca\u8f83\u5927\u7684\u529f\u7387\u56e0\u6570PF=S2<\/sup>\u03c3\uff0c\u5176\u4e0e\u9002\u5408\u4e8e\u70ed\u7535\u6750\u6599\u7684\u7535\u5b50\u7ed3\u6784\u548c\u6700\u4f73\u8f7d\u6d41\u5b50\u6d53\u5ea6\u5bc6\u5207\u76f8\u5173\u3002S\u548c\u03c3\u90fd\u662f\u4e0e\u8f7d\u6d41\u5b50\u6d53\u5ea6\u76f8\u5173\u7684\u51fd\u6570\uff1a\u524d\u8005\u968f\u7740\u8f7d\u6d41\u5b50\u6d53\u5ea6\u7684\u51cf\u5c11\u800c\u589e\u52a0\uff0c\u800c\u540e\u8005\u968f\u8f7d\u6d41\u5b50\u6d53\u5ea6\u7684\u51cf\u5c11\u800c\u51cf\u5c11\u3002\u56e0\u6b64\uff0c\u79d1\u7814\u5de5\u4f5c\u8005\u7814\u7a76\u4e86\u8bb8\u591a\u6750\u6599\u7684\u6700\u4f73\u8f7d\u6d41\u5b50\u6d53\u5ea6\uff0c\u5e76\u4e14\u5b9e\u73b0\u4e86\u51e0\u767e\u03bcV\/K\u7684\u585e\u8d1d\u514b\u7cfb\u6570\uff0c\u51e0\u4e2am\u03a9 cm\u7684\u7535\u963b\u7387\uff0c\u4ee5\u53ca\u51e0\u4e2amW\/m\/K2<\/sup>\u7684\u529f\u7387\u56e0\u6570\u3002<\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb<\/strong>\u3011<\/p>\n

\u8fd1\u65e5\uff0c\u65e5\u672c\u4e30\u7530\u5de5\u4e1a\u5927\u5b66<\/strong>\u53d1\u73b0 \u201c\u91d1\u5c5e\u201dCu2<\/sub>Se\u5728340-400 K\u6e29\u5ea6\u8303\u56f4\u5185\u5177\u6709\u5de8\u5927\u7684\u585e\u8d1d\u514b\u7cfb\u6570\uff0c\u5176\u4e2d\u6750\u6599\u5185\u53d1\u751f\u6709\u5e8f-\u65e0\u5e8f\u7ed3\u6784\u8f6c\u53d8\uff0c\u5177\u6709\u8d85\u8fc72.3W\/m\/K2<\/sup>\u7684\u529f\u7387\u56e0\u6570\u503c\u3002\u8fd9\u4e2a\u6570\u503c\u662f\u5728\u4e0d\u5bfb\u5e38\u7684\u6e29\u5ea6\u68af\u5ea6\u4e0b\u89c2\u5bdf\u5230\u7684\uff0c\u8be5\u6e29\u5ea6\u68af\u5ea6\u4e0d\u4ec5\u9002\u7528\u4e8e\u4e0e\u585e\u8d1d\u514b\u6d4b\u91cf\u65b9\u5411\u5e73\u884c\u7684\u65b9\u5411\uff0c\u540c\u65f6\u4e5f\u9002\u7528\u4e8e\u5782\u76f4\u7684\u65b9\u5411\u3002\u5728\u975e\u5e38\u5c0f\u7684\u6676\u683c\u70ed\u5bfc\u7387\uff08\u5c0f\u4e8e1.8W\/m\/K\uff09\u7684\u652f\u6301\u4e0b\uff0cZT\u503c\u8d85\u8fc7450\u3002\u8fd9\u4e9b\u5de8\u5927\u7684S\uff0cPF\u548cZT\u503c\u662f\u5728\u4f4e\u6e29\u9636\u6bb5\u83b7\u5f97\u7684\uff0c\u8fd9\u662f\u7531\u4e8e\u6301\u7eed\u9ad8\u6e29\u6240\u5f15\u8d77\u7684\u81ea\u8c03\u6574\u8f7d\u6d41\u5b50\u6d53\u5ea6\u7684\u7ed3\u679c\u3002\u8be5\u6210\u679c\u4ee5\u9898\u4e3a\u201dDiscovery of Colossal Seeback Effect in Metallic Cu2<\/sub>Se<\/strong>\u201d\u53d1\u8868\u5728Nat. Commun.<\/strong>\u4e0a<\/p>\n

\u3010\u56fe\u6587\u5bfc\u8bfb\u3011<\/strong><\/p>\n

Figure <\/strong>1.Cu2<\/sub>Se<\/strong>\u7684\u7ed3\u6784\u5206\u6790<\/strong>\u00a0\"\"<\/strong><\/p>\n

(a,b).\u5ba4\u6e29\u548c473K\u4e0b\uff0c\u540c\u6b65\u8f90\u5c04\u7c89\u672b\u884d\u5c04\u56fe\u6848<\/p>\n

(c).Cu2<\/sub>Se\u5728\u9ad8\u6e29\u548c\u4f4e\u6e29\u4e0b\u7684\u6676\u4f53\u7ed3\u6784<\/p>\n

(d).\u76f8\u5206\u6570\u968f\u6e29\u5ea6\u7684\u53d8\u5316<\/p>\n

Figure <\/strong>2.Cu2<\/sub>Se<\/strong>\u7684\u585e\u8d1d\u514b\u7cfb\u6570<\/strong><\/p>\n

\"\"<\/strong><\/p>\n

(a).\u585e\u8d1d\u514b\u5b9e\u9a8c\u88c5\u7f6e<\/p>\n

(b).\u5b9e\u9a8c\u6240\u6d4b\u5f97\u7684\u585e\u8d1d\u514b\u7cfb\u6570<\/p>\n

(c).\u70ed\u7535\u52a8\u52bf\u7684\u539f\u59cb\u6570\u636e<\/p>\n

Figure 3<\/strong>.Cu2<\/sub>Se<\/strong>\u4e2d\u585e\u8d1d\u514b\u7cfb\u6570\u7684\u91cd\u73b0\u6027<\/strong><\/p>\n

\"\"<\/p>\n

\u56fe<\/strong>4.Cu2<\/sub>Se<\/strong>\u70ed\u7535\u6027\u8d28\u7684\u6e29\u5ea6\u4f9d\u8d56<\/strong><\/p>\n

\"\"<\/strong><\/p>\n

(a).\u7535\u963b\u7387<\/p>\n

(b).\u529f\u7387\u56e0\u6570<\/p>\n

(c).\u5bfc\u70ed\u7387<\/p>\n

(d).\u6bd4\u70ed\u548c\u70ed\u6269\u6563\u7387<\/p>\n

(e).ZT\u503c<\/p>\n

(f).ZT\u6e29\u5ea6\u4f9d\u8d56\u6027\u5f02\u5e38\u884c\u4e3a\u533a\u57df\u663e\u793a\u4e24\u4e2a\u5cf0\u503c<\/p>\n

(g).ZT\u6e29\u5ea6\u4f9d\u8d56\u6027\u4e2d\u6240\u89c2\u5bdf\u5230\u5e73\u53f0\u533a<\/p>\n

\u56fe<\/strong>5.<\/strong>\u7b80\u5316<\/strong>Cu2<\/sub>Se<\/strong>\u7684\u8ba1\u7b97\u7535\u5b50\u6001\u5bc6\u5ea6\u548c\u585e\u8d1d\u514b\u7cfb\u6570<\/strong>\u00a0\"\"<\/strong><\/p>\n

(a).\u7535\u5b50\u5bc6\u5ea6<\/p>\n

(b).\u533a\u57df\u653e\u5927<\/p>\n

(c).\u8ba1\u7b97\u7684\u585e\u8d1d\u514b\u7cfb\u6570\u968f\u5316\u5b66\u52bf\u80fd\u7684\u53d8\u5316<\/p>\n

\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u5728\u8fd9\u4e2a\u5de5\u4f5c\u4e2d\uff0c\u4f5c\u8005\u53d1\u73b0\u5728\u540c\u65f6\u65bd\u52a0\u4e8e\u5e73\u884c\u548c\u5782\u76f4\u6d4b\u91cf\u65b9\u5411\u7684\u6e29\u5ea6\u68af\u5ea6\u4e0b\uff0c\u91d1\u5c5eCu2<\/sub>Se\u5728\u53d1\u751f\u7ed3\u6784\u76f8\u53d8\u7684\u8f83\u7a84\u6e29\u5ea6\u8303\u56f4\u5185\uff08340K<T<400K\uff09\u663e\u793a\u51fa\u4e24\u4e2a\u4fe1\u53f7\u53cd\u8f6c\u548c\u8d85\u8fc7\u00b12mV\/K\u7684\u5de8\u5927S\u503c\u3002\u5177\u6709\u8d85\u8fc7600 S cm-1<\/sup>\u7684\u8f83\u5927\u5e45\u5ea6\u7684\u03c3\u7684\u91d1\u5c5e\u884c\u4e3a\u5bfc\u81f4S2<\/sup>\u03c3=2.3W\/m\/K2<\/sup>\u7684\u5de8\u5927\u503c\u3002\u5c0f\u4e8e2W\/m\/K\u7684\u5c0f\u70ed\u5bfc\u7387\u5bfc\u81f4ZT\u503c\u8d85\u8fc7400\u3002<\/p>\n

Discovery of Colossal Seeback Effect in Metallic Cu2<\/sub>Se<\/a><\/p>\n

(Nat. Commun., 2018, DOI: 10.1038\/s41467-018-07877-5)<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u5b66\u672f\u7ec4gaxy\u4f9b\u7a3f\uff0c\u6750\u6599\u725b\u6574\u7406\u7f16\u8f91\u3002\u00a0<\/p>\n

\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","protected":false},"excerpt":{"rendered":"

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