Time-resolved photoluminescence properties of semiconductor quantum dot superlattices of different microcrystal shapes
We report time-resolved photoluminescence properties on semiconductor quantum dot (QD) superlattices (SLs) using PL lifetime imaging microscopy at a single particle level. PL lifetime imaging technique clearly reveals that different shaped QD SL microcrystals have different time-resolved PL characte...
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| Veröffentlicht in: | Applied physics letters 2014-04, Vol.104 (15) |
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| container_title | Applied physics letters |
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| creator | Chae, Weon-Sik Choi, Eunjin Ku Jung, Yun Jung, Jin-Seung Lee, Jin-Kyu |
| description | We report time-resolved photoluminescence properties on semiconductor quantum dot (QD) superlattices (SLs) using PL lifetime imaging microscopy at a single particle level. PL lifetime imaging technique clearly reveals that different shaped QD SL microcrystals have different time-resolved PL characteristics. The faceted SL microcrystals consisted of well-organized QDs showed faster recombination rates than those of the spherical microparticles including randomly organized QDs, which can be explained by the different degree of energetic couplings among component QDs due to different packing fraction. |
| doi_str_mv | 10.1063/1.4871468 |
| format | Article |
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PL lifetime imaging technique clearly reveals that different shaped QD SL microcrystals have different time-resolved PL characteristics. The faceted SL microcrystals consisted of well-organized QDs showed faster recombination rates than those of the spherical microparticles including randomly organized QDs, which can be explained by the different degree of energetic couplings among component QDs due to different packing fraction.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4871468</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Couplings ; CRYSTALS ; Electrons ; MATERIALS SCIENCE ; Microcrystals ; Microparticles ; PHOTOLUMINESCENCE ; QUANTUM DOTS ; SEMICONDUCTOR MATERIALS ; SPHERICAL CONFIGURATION ; SUPERLATTICES ; TIME RESOLUTION</subject><ispartof>Applied physics letters, 2014-04, Vol.104 (15)</ispartof><rights>2014 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c285t-5b4f97c5312cb02b1716cf80ffc1b89e01315131f44bd3d7a0bcc8b963251bcc3</citedby><cites>FETCH-LOGICAL-c285t-5b4f97c5312cb02b1716cf80ffc1b89e01315131f44bd3d7a0bcc8b963251bcc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22262636$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Chae, Weon-Sik</creatorcontrib><creatorcontrib>Choi, Eunjin</creatorcontrib><creatorcontrib>Ku Jung, Yun</creatorcontrib><creatorcontrib>Jung, Jin-Seung</creatorcontrib><creatorcontrib>Lee, Jin-Kyu</creatorcontrib><title>Time-resolved photoluminescence properties of semiconductor quantum dot superlattices of different microcrystal shapes</title><title>Applied physics letters</title><description>We report time-resolved photoluminescence properties on semiconductor quantum dot (QD) superlattices (SLs) using PL lifetime imaging microscopy at a single particle level. PL lifetime imaging technique clearly reveals that different shaped QD SL microcrystals have different time-resolved PL characteristics. 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PL lifetime imaging technique clearly reveals that different shaped QD SL microcrystals have different time-resolved PL characteristics. The faceted SL microcrystals consisted of well-organized QDs showed faster recombination rates than those of the spherical microparticles including randomly organized QDs, which can be explained by the different degree of energetic couplings among component QDs due to different packing fraction.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4871468</doi></addata></record> |
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| ispartof | Applied physics letters, 2014-04, Vol.104 (15) |
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| language | eng |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics Couplings CRYSTALS Electrons MATERIALS SCIENCE Microcrystals Microparticles PHOTOLUMINESCENCE QUANTUM DOTS SEMICONDUCTOR MATERIALS SPHERICAL CONFIGURATION SUPERLATTICES TIME RESOLUTION |
| title | Time-resolved photoluminescence properties of semiconductor quantum dot superlattices of different microcrystal shapes |
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