{"id":76544,"date":"2017-04-19T14:00:22","date_gmt":"2017-04-19T06:00:22","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=76544"},"modified":"2017-04-17T19:32:07","modified_gmt":"2017-04-17T11:32:07","slug":"adv-mater-%ef%bc%9a%e5%88%a9%e7%94%a8%e8%83%bd%e5%b8%a6%e6%94%b6%e6%95%9b%e4%b8%8e%e6%99%b6%e6%a0%bc%e4%bd%8d%e9%94%99%e6%8f%90%e9%ab%98pbte%e7%83%ad%e7%94%b5%e6%80%a7%e8%83%bd","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=76544","title":{"rendered":"Adv. Mater.\uff1a\u5229\u7528\u80fd\u5e26\u6536\u655b\u4e0e\u6676\u683c\u4f4d\u9519\u63d0\u9ad8PbTe\u70ed\u7535\u6027\u80fd"},"content":{"rendered":"

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

\u70ed\u7535\u6750\u6599\u7684\u70ed\u7535\u6027\u80fd\u7528\u70ed\u7535\u4f18\u503czT\u8861\u91cf\uff0czT = S2<\/sup>\u03c3 T\/(\u03ba\u0395<\/sub>\u00a0+\u00a0\u03baL<\/sub>)\uff0c\u5176\u4e2d\u7684Seebeck\u7cfb\u6570S\u3001\u7535\u5bfc\u7387\u03c3\u3001\u7535\u5b50\u70ed\u5bfc\u7387\u03ba\u0395<\/sub>\u5177\u6709\u5f3a\u70c8\u7684\u8026\u5408\u4f5c\u7528\uff0c\u56e0\u6b64\u5f88\u96be\u901a\u8fc7\u6539\u5584\u5355\u4e00\u6027\u80fd\u6765\u63d0\u9ad8zT\u503c\u3002\u901a\u8fc7\u80fd\u5e26\u5de5\u7a0b\u5bf9\u8fd9\u4e09\u4e2a\u53c2\u6570\u53bb\u8026\u5408\u4f5c\u7528\u5df2\u7ecf\u5728IV-VI\u65cf\u534a\u5bfc\u4f53\u548c\u5176\u4ed6\u4e00\u4e9b\u6750\u6599\u4e2d\u6210\u529f\u5e94\u7528\uff0c\u53ef\u4ee5\u589e\u52a0\u5bfc\u7535\u901a\u9053\u6765\u63d0\u9ad8\u7535\u5bfc\u7387\u800c\u4e0d\u6539\u53d8Seebeck\u7cfb\u6570\uff1b\u6216\u662f\u53ef\u4ee5\u901a\u8fc7\u6700\u5c0f\u5316\u72ec\u7acb\u53c2\u91cf\u6676\u683c\u70ed\u5bfc\u7387\u03baL<\/sub>\u6765\u63d0\u9ad8zT\u503c\uff0c\u5982\u5f15\u5165\u70b9\u7f3a\u9677\u3001\u7eb3\u7c73\u7ed3\u6784\u3001\u9ad8\u5bc6\u5ea6\u4f4d\u9519\u7b49\u3002<\/p>\n

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

\u8fd1\u65e5\uff0c\u540c\u6d4e\u5927\u5b66\u88f4\u8273\u4e2d\u6559\u6388<\/b><\/strong>\uff08\u901a\u8baf\u4f5c\u8005\uff09\u8bfe\u9898\u7ec4\u5229\u7528\u80fd\u5e26\u5de5\u7a0b\u5c06\u65b0\u5408\u91d1EuTe\u7684\u70ed\u7535\u4f18\u503c\u589e\u5927\u52301.7\u5de6\u53f3\uff0c\u7136\u540e\u589e\u52a0Na\u7684\u542b\u91cf\u53d1\u73b0\u4f4d\u9519\u5bc6\u5ea6\u589e\u52a0\uff0c\u518d\u7ee7\u7eed\u589e\u52a0Na\u542b\u91cf\u65f6\u4f4d\u9519\u5bc6\u5ea6\u9010\u6e10\u51cf\u5c11\u800c\u51fa\u73b0\u7eb3\u7c73\u6c89\u6dc0\u7269\uff0c\u6750\u6599\u4e2d\u7684\u4e3b\u8981\u5fae\u89c2\u7f3a\u9677\u4ece\u70b9\u7f3a\u9677\u8f6c\u4e3a\u9ad8\u5bc6\u5ea6\u4f4d\u9519\u518d\u8f6c\u4e3a\u7eb3\u7c73\u6c89\u6dc0\u7269\uff0c\u8fd9\u4e2a\u8f6c\u53d8\u8fc7\u7a0b\u5f97\u5230\u591a\u79cd\u7f3a\u9677\u7c7b\u578b\u4ece\u800c\u5f15\u5165\u591a\u79cd\u6563\u5c04\u673a\u5236\uff0c\u964d\u4f4e\u6676\u683c\u70ed\u5bfc\u7387\u81f30.4 W m\u22121<\/sup>\u00a0K\u22121<\/sup>\u4ee5\u4e0b\uff08\u5df2\u7ecf\u63a5\u8fd1\u4e8e\u975e\u6676\u4f53\u6750\u6599\u7684\u6676\u683c\u70ed\u5bfc\u7387\u6781\u9650\uff09\uff0c\u63d0\u9ad8zT\u81f32.2\uff0c\u8fd9\u4e2a\u7814\u7a76\u6210\u679c\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b0\u7684\u53ef\u80fd\u6027\u5373\u53ef\u4ee5\u5229\u7528\u4f4d\u9519\u5de5\u7a0b\u6765\u63d0\u9ad8\u6750\u6599\u7684\u70ed\u7535\u6027\u80fd\u3002<\/p>\n

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

\u56fe1. \u80fd\u5e26\u5de5\u7a0b<\/b><\/strong><\/p>\n

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

a) Pb27<\/sub>Te27<\/sub>\u548cEuPb26<\/sub>Te27<\/sub>\u80fd\u5e26\u7ed3\u6784\u56fe<\/p>\n

b) \u5ba4\u6e29\u4e0bNax<\/sub>Pb1\u2212x<\/sub>Te\u548cNay<\/sub>Eu03<\/sub>Pb0.97<\/sub>Te\u7684\u5149\u5438\u6536\u7cfb\u6570<\/p>\n

c) PbTe:Na\u4e0eMn03<\/sub>Pb0.97<\/sub>Te:Na\u3001Yb0.01<\/sub>Pb0.99<\/sub>Te:Na\u3001Eux<\/sub>Pb1\u2212x<\/sub>Te:Na\u5ba4\u6e29Seebeck \u7cfb\u6570(S)\u5bf9\u970d\u5c14\u8f7d\u6d41\u5b50\u6d53\u5ea6(nH)\u5173\u7cfb\u5bf9\u6bd4\u56fe<\/p>\n

d)\u4e0d\u540c\u7f3a\u9677\u6784\u578b\u7684Pb30<\/sub>EuNaTe32<\/sub>\u4e2d\u603b\u80fd\u91cf\u8ba1\u7b97\u503c\u4e0eNa-Eu\u95f4\u8ddd\u7684\u51fd\u6570\u5173\u7cfb\u56fe<\/p>\n

\u56fe2. ZT\u66f2\u7ebf\u56fe<\/b><\/strong><\/p>\n

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

a) Na02<\/sub>Eux<\/sub>Pb0.98\u2212x<\/sub>Te\u7684ZT\u66f2\u7ebf\u56fe<\/p>\n

b) Nay<\/sub>Eu03<\/sub>Pb0.97\u2212y<\/sub>Te\u7684ZT\u66f2\u7ebf\u56fe.<\/p>\n

\u5229\u7528\u80fd\u5e26\u5de5\u7a0b\u5f97\u5230ZT\u5cf0\u503c<\/sub>\u22481.7\u5229\u7528\u4f4d\u9519\u5de5\u7a0b\u4f7fZT\u8fdb\u4e00\u6b65\u589e\u5927\u5230\u7ea62.2<\/p>\n

\u56fe3. <\/b><\/strong>NayEu<\/b><\/strong>0.03<\/b><\/sub><\/strong>Pb<\/b><\/strong>0.97\u2212y<\/b><\/sub><\/strong>Te<\/b><\/strong>\u5fae\u7ed3\u6784<\/b><\/strong><\/p>\n

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

a) \u65e0\u660e\u663e\u4f4d\u9519 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/p>\n

b) y = 0.02\u7684\u6837\u54c1\u7684\u7eb3\u7c73\u6c89\u6dc0\u7269<\/p>\n

c) y = 0.025\u7684\u6837\u54c1\u7684\u7eb3\u7c73\u6c89\u6dc0\u7269\uff0c\u521d\u6b65\u89c2\u5bdf\u5230\u4f4d\u9519<\/p>\n

d) y = 0.025\u7684\u6837\u54c1\u7684\u7eb3\u7c73\u6c89\u6dc0\u7269\u5bc6\u5ea6\u589e\u52a0<\/p>\n

e)y = 0.03\u7684\u6837\u54c1\u8f83\u4f4e\u4f4d\u9519\u7684\u56fe\u50cf<\/p>\n

f)y = 0.03\u7684\u6837\u54c1\u8f83\u9ad8\u4f4d\u9519\u7684\u56fe\u50cf<\/p>\n

g) \u4f4d\u9519\u653e\u5927\u56fe<\/p>\n

h)\u7eb3\u7c73\u6c89\u6dc0\u7269\u653e\u5927\u56fe<\/p>\n

\u56fe4. \u4f4d\u9519\u5bc6\u5ea6\u7684\u786e\u5b9a<\/b><\/strong><\/p>\n

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

a) X\u5c04\u7ebf\u884d\u5c04\u56fe\u8c31<\/p>\n

b) \u4fee\u6b63Williamson\u2013Hall\u56fe\u6cd5\u8fdb\u884c\u5cf0\u5bbd\u5316\u5206\u6790<\/p>\n

\u56fe5. \u6676\u683c\u70ed\u5bfc\u7387<\/b><\/strong><\/p>\n

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

a) 850K\u65f6NayEu03<\/sub>Pb0.97\u2212y<\/sub>Te\u7684\u6676\u683c\u70ed\u5bfc\u7387\u4e0ey\u7684\u5173\u7cfb\u66f2\u7ebf\u56fe\uff0c\u9ed1\u8272\u5706\u5708\u4ee3\u8868\u672c\u7814\u7a76\u5b9e\u9a8c\u7ed3\u679c\uff0c\u7eff\u8272\u5706\u5708\u4ee3\u8868\u6587\u732e\u7ed3\u679c\uff0c\u66f2\u7ebf\u4e3a\u4e0d\u540c\u58f0\u5b50\u6563\u5c04\u7c7b\u578b\u7684\u57fa\u4e8e\u5fb7\u62dc\u8fd1\u4f3c\u7684\u9884\u6d4b\u66f2\u7ebf\uff0c\u53ef\u4ee5\u770b\u51fa\u4f4d\u9519\u5bf9\u6676\u683c\u70ed\u5bfc\u7387\u7684\u964d\u4f4e\u4f5c\u7528\u6700\u5927<\/p>\n

b) Na025<\/sub>Eu0.03<\/sub>Pb0.945<\/sub>Te\u4e0d\u540c\u58f0\u5b50\u6563\u5c04\u673a\u5236\uff08\u5305\u62ec\u6b63\u89c4\u8fc7\u7a0b\u548c\u5012\u9006\u8fc7\u7a0b\uff09\u9020\u6210\u7684\u7d2f\u79ef\u6676\u683c\u70ed\u5bfc\u7387\u51cf\u5c11\u91cf\u4e0e\u58f0\u5b50\u9891\u7387\u5173\u7cfb\u56fe<\/p>\n

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

\u672c\u7814\u7a76\u7528\u80fd\u5e26\u5de5\u7a0b\u6536\u655b\u4e86EuTe\u7684\u7b2c\u4e00\u4ef7\u5e26\u548c\u7b2c\u4e8c\u4ef7\u5e26\uff0c\u589e\u52a0\u4e86PbTe\u7684\u5e26\u9699\u5bbd\u5ea6\uff0c\u5c06zT\u63d0\u9ad8\u52301.7\uff0c\u7136\u540e\u901a\u8fc7\u8c03\u8282Na\u03b3<\/sub>Eu0.03<\/sub>Pb0.97\u2212<\/sub>\u03b3<\/sub>Te\u4e2dNa\u7684\u542b\u91cf\uff0c\u4f7f\u4e3b\u8981\u5fae\u89c2\u7f3a\u9677\u53d1\u751f\u70b9\u7f3a\u9677-\u9ad8\u5bc6\u5ea6\u4f4d\u9519-\u7eb3\u7c73\u6c89\u6dc0\u7269\u7684\u8f6c\u53d8\u3002\u5f97\u5230\u5728\u03b3=0.025\u65f6\uff0c\u6676\u683c\u70ed\u5bfc\u7387\u6700\u5c0f\uff0c\u6b64\u65f6zT\u22482.2\uff0c\u5145\u5206\u8bc1\u660e\u4e86\u4f4d\u9519\u5de5\u7a0b\u5728\u63d0\u9ad8\u6750\u6599\u70ed\u7535\u6027\u80fd\u65b9\u9762\u5177\u6709\u6709\u6548\u4f5c\u7528\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aLattice Dislocations Enhancing Thermoelectric PbTe in Addition to Band Convergence<\/a><\/b><\/strong>\uff08Adv. Mater., 2017, DOI: 10.1002\/adma.201606768\uff09<\/p>\n

\u672c\u6587\u7531\u6750\u6599\u4eba\u7f16\u8f91\u90e8\u7535\u5b50\u7535\u5de5\u5b66\u672f\u7ec4zzzlx\u6574\u7406\u7f16\u8bd1\u3002<\/p>\n

\u6750\u6599\u725b\u7f51\u4e13\u6ce8\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u53ca\u884c\u4e1a\u8fdb\u5c55\uff0c\u5982\u679c\u60a8\u5bf9\u4e8e\u8ddf\u8e2a\u6750\u6599\u9886\u57df\u79d1\u6280\u8fdb\u5c55\uff0c\u89e3\u8bfb\u9ad8\u6c34\u5e73\u6587\u7ae0\u6216\u662f\u8bc4\u8ff0\u884c\u4e1a\u6709\u5174\u8da3\uff0c\u70b9\u6211\u52a0\u5165\u7f16\u8f91\u90e8<\/a>\u3002\u5982\u679c\u4f60\u5bf9\u7535\u5b50\u6750\u6599\u611f\u5174\u8da3\uff0c\u613f\u610f\u4e0e\u7535\u5b50\u7535\u5de5\u9886\u57df\u4eba\u624d\u4ea4\u6d41\uff0c\u8bf7\u52a0\u5165\u6750\u6599\u4eba\u7535\u5b50\u7535\u5de5\u6750\u6599\u5b66\u4e60\u5c0f\u7ec4\uff08QQ\u7fa4\uff1a482842474\uff09\u3002\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

\u6750\u6599\u6d4b\u8bd5\uff0c\u6570\u636e\u5206\u6790\uff0c\u4e0a\u6d4b\u8bd5\u8c37<\/a><\/b><\/strong>\uff01<\/b><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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