{"id":192972,"date":"2019-12-23T06:32:49","date_gmt":"2019-12-22T22:32:49","guid":{"rendered":"http:\/\/www.cailiaoniu.com\/?p=192972"},"modified":"2019-12-22T18:33:00","modified_gmt":"2019-12-22T10:33:00","slug":"acs-energy-letters%e8%a7%a3%e6%9e%90cspbi3%e9%92%99%e9%92%9b%e7%9f%bf%e9%87%8f%e5%ad%90%e7%82%b9%e7%9a%84%e6%99%b6%e6%a0%bc%e7%bb%93%e6%9e%84%e5%b9%b6%e6%8f%ad%e7%a7%98%e5%85%b6%e5%b8%b8%e6%b8%a9","status":"publish","type":"post","link":"http:\/\/www.cailiaoniu.com\/?p=192972","title":{"rendered":"ACS Energy Letters:\u89e3\u6790CsPbI3\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7684\u6676\u683c\u7ed3\u6784\u5e76\u63ed\u79d8\u5176\u5e38\u6e29\u4e0b\u7a33\u5b9a\u5b58\u5728\u7684\u539f\u56e0\uff1a\u8d1f\u8868\u9762\u80fd"},"content":{"rendered":"

\u80cc\u666f\u4ecb\u7ecd<\/strong><\/p>\n

\u76ee\u524d\uff0c\u91d1\u5c5e\u5364\u65cf\u9499\u949b\u77ff\u534a\u5bfc\u4f53\u6750\u6599\u65e2\u53ef\u4f5c\u4e3a\u5438\u5149\u5c42\u5728\u5e7f\u6cdb\u5e94\u7528\u4e0e\u592a\u9633\u80fd\u7535\u6c60\u3001\u5149\u63a2\u6d4b\u5668\u548c\u5149\u95ea\u70c1\u5668\u4e2d\uff0c\u4ea6\u4f5c\u4e3a\u53d1\u5149\u5c42\u5e94\u7528\u4e8e\u5728\u5149\u4e8c\u6781\u7ba1\u3001\u663e\u793a\u5668\u548c\u6fc0\u5149\u5668\u7b49\u5668\u4ef6\u4e2d\u3002\u56e0\u6b64\uff0c\u5bf9\u8be5\u7c7b\u9499\u949b\u77ff\u534a\u5bfc\u4f53\u6750\u6599\u7684\u672c\u5f81\u7279\u6027\u7684\u7814\u7a76\u4e9f\u5f85\u5173\u6ce8\u3002\u80f6\u4f53\u91cf\u5b50\u70b9\u7684\u91cf\u5b50\u9650\u57df\u7279\u6027\u4e0d\u4ec5\u53ef\u8c03\u8282\u6750\u6599\u7684\u53d1\u5149\u6ce2\u957f\uff0c\u800c\u4e14\u53ef\u7528\u4e8e\u7814\u7a76\u6750\u6599\u7684\u57fa\u672c\u7279\u6027\u548c\u786e\u5b9a\u6750\u6599\u7684\u672c\u5f81\u7535\u5b66\u53c2\u6570\u3002CsPbI3<\/sub>\u91cf\u5b50\u70b9\u5728\u80f6\u4f53\u91cf\u5b50\u70b9\u592a\u9633\u80fd\u7535\u6c60\u3001\u53d1\u5149\u4e8c\u6781\u7ba1\u548c\u5149\u63a2\u6d4b\u5668\u7b49\u5e94\u7528\u4e2d\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u7279\u6027\u3002\u4f46\u91c7\u7528\u7684\u70ed\u6ce8\u5c04\u5408\u6210\u65b9\u6cd5\u65e0\u6cd5\u6709\u6548\u63a7\u5236CsPbI3<\/sub>\u6676\u4f53\u7684\u6210\u6838\u4e0e\u751f\u957f\uff0c\u56e0\u6b64\uff0c\u76ee\u524d\u65e0\u6cd5\u83b7\u5f97\u5927\u5c3a\u5bf8\u8303\u56f4\u7684\u5355\u5206\u6563\u7684CsPbI3<\/sub>\u80f6\u4f53\u91cf\u5b50\u70b9\u3002\u4ece\u800c\u4f7f\u5f97\u5bf9CsPbI3<\/sub>\u91cf\u5b50\u70b9\u672c\u5f81\u7279\u6027\u7684\u7814\u7a76\u9887\u5177\u6311\u6218\u6027\u3002<\/p>\n

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

\u8fd1\u671f\uff0c\u7f8e\u56fd\u56fd\u5bb6\u53ef\u518d\u751f\u80fd\u6e90\u5b9e\u9a8c\u5ba4Joseph M Luther\u56e2\u961f\u4e0e\u5357\u5f00\u5927\u5b66\u674e\u56fd\u7136\u6559\u6388\u4ee5\u53ca\u5f20\u660e\u6167\u6559\u6388\u56e2\u961f\u5408\u4f5c\uff0c\u91c7\u7528\u5c3a\u5bf8\u9009\u62e9\u6027\u6c89\u6dc0\u7684\u65b9\u6cd5\u83b7\u5f97\u4e86\u4e00\u7cfb\u5217\u5c3a\u5bf8\u4e0d\u540c\u4e14\u5206\u5e03\u8f83\u5c0f\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u3002\u901a\u8fc7\u5bf9\u5176XRD\u6570\u636e\u5206\u6790\uff0c\u53d1\u73b0\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7684\u76f8\u7ed3\u6784\u4e3a\u03b3<\/em>\u76f8\uff0c\u4fee\u6b63\u4e86\u76ee\u524d\u5e7f\u6cdb\u62a5\u9053\u7684\u03b1<\/em>\u76f8\uff0c\u5e76\u53ef\u80fd\u5b58\u5728\u5c3a\u5bf8\u4f9d\u8d56\u7684\u516b\u9762\u4f53\u6676\u683c\u626d\u66f2\u3002\u901a\u8fc7\u5bf9\u6676\u683c\u4f53\u79ef\u7684\u8ba1\u7b97\u62df\u5408\uff0c\u5f97\u5230CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684\u8868\u9762\u80fd\u4e3a-3.0\u52305.1 eV\/nm2<\/sup>\u3002\u6b64\u5916\uff0c\u9996\u6b21\u91c7\u7528\u4e86\u4e00\u79cd\u975e\u7403\u5f62\u80fd\u5e26\u79bb\u6563\u7684\u4e2d\u5ea6\u9650\u57df\u6a21\u578b\u6765\u5bf9\u5c3a\u5bf8\u4f9d\u8d56\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684\u5e26\u9699\u8fdb\u884c\u62df\u5408\uff0c\u5e76\u8ba1\u7b97\u5f97\u51fa\u4e86CsPbI3<\/sub>\u6750\u6599\u7684\u5e26\u9699\u3001\u7ea6\u5316\u8d28\u91cf\u548c\u6fc0\u5b50\u675f\u7f1a\u80fd\u7b49\u7535\u5b66\u53c2\u6570\u3002<\/p>\n

\u76f8\u5173\u7814\u7a76\u53d1\u8868\u4e8eACS Energy Letters\u4e0a\uff0c\u8bba\u6587\u7b2c\u4e00\u4f5c\u8005\u4e3a\u5357\u5f00\u5927\u5b66CSC\u8054\u966a\u535a\u58eb\u751f\u8d75\u4e7e\uff0c\u901a\u8baf\u4f5c\u8005\u4e3a\u7f8e\u56fd\u56fd\u5bb6\u53ef\u518d\u751f\u80fd\u6e90\u5b9e\u9a8c\u5ba4Joseph M Luther<\/p>\n

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

\u901a\u8fc7\u91c7\u7528\u5c3a\u5bf8\u9009\u62e9\u6027\u6c89\u6dc0\uff0c\u83b7\u5f97\u4e86\u4e00\u7cfb\u5217\u5c3a\u5bf8\u4e0d\u540c\u4e14\u5206\u5e03\u8f83\u5c0f\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u3002\u901a\u8fc7\u5bf9\u4e0d\u540c\u5c3a\u5bf8\u91cf\u5b50\u70b9\u7684TEM\u56fe\u5206\u6790\uff0c\u5f97\u5230\u4e86\u91cf\u5b50\u70b9\u5c3a\u5bf8\u7684\u5e73\u5747\u503c\u548c\u53ca\u5176\u6807\u51c6\u504f\u5dee\uff0c\u5e76\u6d4b\u8bd5\u4e86\u76f8\u5e94\u7684UV-vis\u548cPL\u8c31\u56fe\uff08\u56fe\u4e00\uff09\u3002\u901a\u8fc7\u6d4b\u8bd5\u4e0d\u540c\u5c3a\u5bf8\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684XRD\u8c31\u56fe\uff0c\u53ef\u53d1\u73b0\u968f\u7740\u5c3a\u5bf8\u589e\u5927\uff0c\u6676\u683c\u7684\u516b\u9762\u4f53\u626d\u66f2\u7a0b\u5ea6\u589e\u52a0\uff08\u56fe\u4e8c\uff09\u3002\u4e3a\u8fdb\u4e00\u6b65\u9a8c\u8bc1\u8be5\u7ed3\u8bba\uff0c\u5206\u522b\u5bf95.7 nm\u548c15.3 nm\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9XRD\u8c31\u56fe\u8fdb\u884cRietveld\u7cbe\u4fee\uff0c\u53d1\u73b0\u5bf9\u5927\u5c3a\u5bf8\u91cf\u5b50\u70b9\u4f7f\u7528\u03b3<\/em>\u76f8\u53ef\u5f97\u5230\u6700\u4f73\u62df\u5408\u3002\u56e0\u6b64\u91c7\u7528\u03b3<\/em>\u76f8\u8fdb\u4e00\u6b65\u62df\u5408\u5f97\u51fa\u5404\u5c3a\u5bf8\u91cf\u5b50\u70b9\u7684\u6676\u683c\u53c2\u6570\uff0c\u4e14\u4ee5\u6b64\u62df\u5408\u8ba1\u7b97\u51fa\u4e86CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684\u8868\u9762\u80fd\uff08\u56fe\u4e09\uff09\u3002\u6b64\u5916\uff0c\u5229\u7528\u5df2\u77e5\u7684\u03b1<\/em>\u76f8CsPbI3<\/sub>\u7535\u5b66\u53c2\u6570\uff08\u8868\u4e00\uff09\u5c1d\u8bd5\u5bf9\u672c\u6587\u5b9e\u9a8c\u6570\u636e\u8fdb\u884c\u5c3a\u5bf8\u66f2\u7ebf\u7684\u62df\u5408\uff0c\u4ece\u800c\u9996\u6b21\u5bf9CsPbI3<\/sub>\u91cf\u5b50\u70b9\u5efa\u7acb\u4e86\u5177\u6709\u975e\u7403\u5f62\u80fd\u5e26\u6548\u5e94\u7684\u4e2d\u5ea6\u9650\u57df\u6a21\u578b\uff08\u56fe\u4e09\uff09\u3002\u91c7\u7528\u8be5\u6a21\u578b\u5bf9\u672c\u6587\u6240\u5f97\u5b9e\u9a8c\u6570\u636e\u8fdb\u884c\u6700\u4f18\u5316\u62df\u5408\uff08\u56fe\u4e09\uff09\uff0c\u5f97\u51fa\u4e86\u53ef\u66f4\u4e3a\u51c6\u786e\u63cf\u8ff0CsPbI3<\/sub>\u6750\u6599\u7684\u5c3a\u5bf8\u66f2\u7ebf\u53ca\u5404\u7535\u5b66\u53c2\u6570\uff08\u8868\u4e00\uff09\u3002<\/p>\n

\u56fe1\u4e0d\u540c\u5c3a\u5bf8CsPbI3<\/sub>\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7684\u5c3a\u5bf8\u5206\u5e03\u53ca\u5149\u5b66\u6027\u8d28<\/strong>\u3002<\/p>\n

\"\"<\/p>\n

a, <\/strong>\u4e0d\u540c\u5c3a\u5bf8\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684\u5c3a\u5bf8\u5206\u5e03\u67f1\u72b6\u56fe\u548cTEM\u56fe\u3002 b\uff0cc\uff0c<\/strong>\u5206\u522b\u4e3a\u76f8\u5e94\u7684UV-vis\u5149\u8c31\u548cPL\u5149\u8c31\u3002<\/p>\n

\u56fe2 CsPbI3<\/sub>\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7684\u4e0d\u540c\u6676\u76f8\u6a21\u578b\u53ca\u4e0d\u540c\u5c3a\u5bf8\u91cf\u5b50\u70b9\u7684XRD\u8c31\u56fe<\/strong><\/p>\n

\"\"<\/p>\n

a-c,<\/strong> CsPbI3<\/sub>\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7684\u6676\u4f53\u7ed3\u6784\u6a21\u578b\u3002d,<\/strong> \u03b1<\/em>\u3001\u03b2<\/em>\u548c\u03b3<\/em> \u76f8\u7684XRD\u6807\u51c6\u8c31\u56fe\u3002e, <\/strong>\u5e73\u5747\u5c3a\u5bf8\u4e3a5.7\u30016.3\u30017.2 nm\u30017.6\u30018.5\u30019.2\u548c15.3 nm\u7684CsPbI3<\/sub>\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7684XRD\u8c31\u56fe\u3002<\/p>\n

\u56fe3 \u4e0d\u540c\u5c3a\u5bf8CsPbI3<\/sub>\u9499\u949b\u77ff\u91cf\u5b50\u70b9\u7684XRD\u7cbe\u4fee\u7ed3\u679c\u53ca\u8868\u9762\u80fd\u8ba1\u7b97<\/strong><\/p>\n

\"\"<\/p>\n

a, b, <\/strong>\u5206\u522b\u4ee5\u03b1<\/em>\u3001\u03b2<\/em>\u548c\u03b3<\/em> \u6676\u4f53\u76f8\u5bf9\u5e73\u5747\u5c3a\u5bf8\u4e3a5.7\u548c15.3 nm\u7684CsPbI3<\/sub>\u91cf\u5b50\u70b9XRD\u8c31\u56fe\u8fdb\u884cRietveld\u7cbe\u4fee\u3002c,<\/strong> \u4e0d\u540c\u5c3a\u5bf8CsPbI3<\/sub>\u91cf\u5b50\u70b9\u7684\u6676\u683c\u53c2\u6570\u3002d\uff0c<\/strong>\u6676\u683c\u4f53\u79ef\u4e0e\u6676\u4f53\u5c3a\u5bf8\u5012\u6570\u95f4\u7684\u7ebf\u6027\u62df\u5408\u3002<\/p>\n

\u88681\u00a0 \u00a0\u00a0<\/strong>CsPbI3<\/sub>\u7535\u5b50\u7ed3\u6784\u53c2\u6570<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n
\n

Parameter<\/strong><\/p>\n<\/td>\n

\n

\u03b1<\/em>-phase value <\/strong>from the literature<\/strong><\/p>\n<\/td>\n

\n

The best-fit value<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

Bandgap E<\/em>g<\/sub><\/p>\n<\/td>\n

\n

1.805 eV<\/p>\n<\/td>\n

\n

1.840 eV<\/p>\n<\/td>\n<\/tr>\n

\n

Kane energy E<\/em>p<\/sub><\/p>\n<\/td>\n

\n

22.62 eV<\/p>\n<\/td>\n

\n

17.39 eV<\/p>\n<\/td>\n<\/tr>\n

\n

Exciton reduced mass \u03bc<\/em><\/p>\n<\/td>\n

\n

0.12<\/p>\n<\/td>\n

\n

0.16<\/p>\n<\/td>\n<\/tr>\n

\n

Dielectric constant \u03f5<\/em>eff<\/sub><\/p>\n<\/td>\n

\n

10<\/p>\n<\/td>\n

\n

10 (Constrained)<\/p>\n<\/td>\n<\/tr>\n

\n

Exciton radius a<\/em>x<\/sub><\/p>\n<\/td>\n

\n

4.4 nm<\/p>\n<\/td>\n

\n

3.3 nm<\/p>\n<\/td>\n<\/tr>\n

\n

Exciton binding energy B<\/em>x<\/sub><\/p>\n<\/td>\n

\n

16.3 meV<\/p>\n<\/td>\n

\n

21.2 meV<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u56fe4\u57fa\u4e8e<\/strong>\u03b1<\/em>-CsPbI3<\/sub>\u6750\u6599\u53c2\u6570\u7684\u91cf\u5b50\u9650\u57df\u6a21\u578b\u53ca\u6240\u5f97\u76f8\u5e94\u5c3a\u5bf8\u66f2\u7ebf\u3002<\/strong><\/p>\n

\"\"<\/p>\n

a, b\uff0c<\/strong>\u5206\u522b\u91c7\u7528\u5f3a\u9650\u57df\u3001\u4e2d\u5ea6\u9650\u57df\u548c\u5f31\u9650\u57df\u6a21\u578b\u6240\u62df\u5408\u7684\u5c3a\u5bf8\u66f2\u7ebf\u3002c\uff0cd, <\/strong>\u5206\u522b\u91c7\u7528\u7403\u5f62\u548c\u975e\u7403\u5f62\u80fd\u5e26\u79bb\u6563\u6548\u5e94\u7684\u4e2d\u5ea6\u9650\u57df\u6a21\u578b\u6240\u62df\u5408\u7684\u5c3a\u5bf8\u66f2\u7ebf\u3002\u5176\u6240\u7528\u62df\u5408\u53c2\u6570\u6765\u81ea\u03b1<\/em>\u76f8\u7684CsPbI3<\/sub>\u6750\u6599\u53c2\u6570\uff0c\u5982\u88681\u3002<\/p>\n

\u56fe5 \u57fa\u4e8e\u672c\u6587\u5b9e\u9a8c\u6570\u636e\u6240\u5f97\u6700\u4f18\u5c3a\u5bf8\u66f2\u7ebf\u3002<\/strong><\/p>\n

\"\"<\/p>\n

a, b\uff0c<\/strong>\u91c7\u7528\u975e\u7403\u5f62\u80fd\u5e26\u79bb\u6563\u7684\u4e2d\u5ea6\u9650\u57df\u6a21\u578b\uff0c\u62df\u5408\u6240\u5f97\u7684\u6700\u4f18\u5c3a\u5bf8\u66f2\u7ebf\uff0c\u5e76\u4ee5\u6b64\u8ba1\u7b97\u51fa\u5177\u6709\u516b\u9762\u4f53\u6676\u683c\u626d\u66f2\u7684CsPbI3<\/sub>\u6750\u6599\u53c2\u6570\uff0c\u5982\u88681\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1ahttps:\/\/pubs.acs.org\/doi\/10.1021\/acsenergylett.9b02395<\/a><\/p>\n

\u672c\u6587\u7531\u7f8e\u56fd\u56fd\u5bb6\u53ef\u518d\u751f\u80fd\u6e90\u5b9e\u9a8c\u5ba4\u4e0e\u5357\u5f00\u5927\u5b66\u8054\u5408\u56e2\u961f\u4f9b\u7a3f<\/p>\n","protected":false},"excerpt":{"rendered":"

\u80cc\u666f\u4ecb\u7ecd \u76ee\u524d\uff0c\u91d1\u5c5e\u5364\u65cf\u9499\u949b\u77ff\u534a\u5bfc\u4f53\u6750\u6599\u65e2\u53ef\u4f5c\u4e3a\u5438\u5149\u5c42\u5728\u5e7f\u6cdb\u5e94\u7528\u4e0e\u592a\u9633\u80fd\u7535\u6c60\u3001\u5149\u63a2\u6d4b\u5668\u548c\u5149\u95ea\u70c1\u5668\u4e2d\uff0c\u4ea6\u4f5c\u4e3a\u53d1\u5149\u5c42\u5e94\u7528\u4e8e\u5728\u5149\u4e8c\u6781\u7ba1\u3001\u663e\u793a\u5668\u548c\u6fc0\u5149\u5668\u7b49\u5668\u4ef6\u4e2d\u3002\u56e0\u6b64\uff0c…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[],"class_list":["post-192972","post","type-post","status-publish","format-standard","hentry","category-jiedu"],"_links":{"self":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/192972"}],"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\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=192972"}],"version-history":[{"count":4,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/192972\/revisions"}],"predecessor-version":[{"id":192983,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=\/wp\/v2\/posts\/192972\/revisions\/192983"}],"wp:attachment":[{"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=192972"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=192972"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cailiaoniu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=192972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}