{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T16:41:19Z","timestamp":1793551279760,"version":"4.5.0"},"reference-count":52,"publisher":"Wiley","issue":"14","license":[{"start":{"date-parts":[[2014,4,9]],"date-time":"2014-04-09T00:00:00Z","timestamp":1397001600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Small"],"published-print":{"date-parts":[[2014,7]]},"abstract":"<jats:p>Performing time\u2010tagged, time\u2010correlated, single\u2010photon\u2010counting studies on individual colloidal nanocrystal quantum dots (NQDs), the evolution of photoluminescence (PL) intensity\u2010fluctuation behaviors in near\u2010infrared (NIR) emitting type II, InP\/CdS core\u2010shell NQDs is investigated as a function of shell thickness. It is observed that Auger recombination and hot\u2010carrier trapping compete in defining the PL intensity\u2010fluctuation behavior for NQDs with thin shells, whereas the role of hot\u2010carrier trapping dominates for NQDs with thick shells. These studies further reveal the distinct ramifications of altering either the excitation fluence or repetition rate. Specifically, an increase in laser pump fluence results in the creation of additional hot\u2010carrier traps. Alternately, higher repetition rates cause a saturation in hot\u2010carrier traps, thus activating Auger\u2010related PL fluctuations. Furthermore, it is shown that Auger recombination of negatively charged excitons is suppressed more strongly than that of positively charged excitons because of the asymmetry in the electron\u2010hole confinement in type II NQDs. Thus, this study provides new understanding of how both NQD structure (shell thickness and carrier\u2010separation characteristics) and excitation conditions can be used to tune the PL stability, with important implications for room\u2010temperature single\u2010photon generation. Specifically, the first non\u2010blinking NQD capable of single\u2010photon emission in the near\u2010infrared spectral regime is described.<\/jats:p>","DOI":"10.1002\/smll.201302896","type":"journal-article","created":{"date-parts":[[2014,4,9]],"date-time":"2014-04-09T06:26:55Z","timestamp":1397024815000},"page":"2892-2901","source":"Crossref","is-referenced-by-count":29,"title":["Competition between Auger Recombination and Hot\u2010Carrier Trapping in PL Intensity Fluctuations of Type II Nanocrystals"],"prefix":"10.1002","volume":"10","author":[{"given":"Benjamin D.","family":"Mangum","sequence":"first","affiliation":[{"name":"Center for Integrated Nanotechnologies Materials Physics, &amp; Applications Division Los Alamos National Laboratory  Los Alamos New Mexico 87545 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feng","family":"Wang","sequence":"additional","affiliation":[{"name":"Center for Integrated Nanotechnologies Materials Physics, &amp; Applications Division Los Alamos National Laboratory  Los Alamos New Mexico 87545 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Allison M.","family":"Dennis","sequence":"additional","affiliation":[{"name":"Center for Integrated Nanotechnologies Materials Physics, &amp; Applications Division Los Alamos National Laboratory  Los Alamos New Mexico 87545 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongqian","family":"Gao","sequence":"additional","affiliation":[{"name":"Center for Integrated Nanotechnologies Materials Physics, &amp; Applications Division Los Alamos National Laboratory  Los Alamos New Mexico 87545 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuedan","family":"Ma","sequence":"additional","affiliation":[{"name":"Center for Integrated Nanotechnologies Materials Physics, &amp; Applications Division Los Alamos National Laboratory  Los Alamos New Mexico 87545 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer A.","family":"Hollingsworth","sequence":"additional","affiliation":[{"name":"Center for Integrated Nanotechnologies Materials Physics, &amp; Applications Division Los Alamos National Laboratory  Los Alamos New Mexico 87545 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Han","family":"Htoon","sequence":"additional","affiliation":[{"name":"Center for Integrated Nanotechnologies Materials Physics, &amp; Applications Division Los Alamos National Laboratory  Los Alamos New Mexico 87545 USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2014,4,9]]},"reference":[{"key":"e_1_2_6_1_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja711379k"},{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/nmat2222"},{"key":"e_1_2_6_3_1","first-page":"7","volume":"718904","author":"Hollingsworth J. 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Our single\u2010dot PL spectra indeed show an equally broad emission spectrum (Supporting Information Figure S2). TEM study of our sample also reveals a narrow size distribution of 5.24 \u00b1 0.56 nm for 4ML 6.84 \u00b1 0.68 nm for 7ML and 8.3 \u00b1 0.72 nm for 10ML g\u2010NQD samples respectively (Supporting Information Figure S3)."},{"key":"e_1_2_6_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/smll.200400069"},{"key":"e_1_2_6_25_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja0738071"},{"key":"e_1_2_6_26_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature05839"},{"key":"e_1_2_6_27_1","doi-asserted-by":"publisher","DOI":"10.1021\/cm8000688"},{"key":"e_1_2_6_28_1","doi-asserted-by":"publisher","DOI":"10.1021\/ic9010949"},{"key":"e_1_2_6_29_1","doi-asserted-by":"publisher","DOI":"10.1039\/b917837f"},{"key":"e_1_2_6_30_1","doi-asserted-by":"publisher","DOI":"10.1021\/nn9004507"},{"key":"e_1_2_6_31_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja803687e"},{"key":"e_1_2_6_32_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcis.2010.06.037"},{"key":"e_1_2_6_33_1","doi-asserted-by":"publisher","DOI":"10.1039\/b924917f"},{"key":"e_1_2_6_34_1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.78.1110"},{"key":"e_1_2_6_35_1","doi-asserted-by":"publisher","DOI":"10.1021\/nl803108p"},{"key":"e_1_2_6_36_1","doi-asserted-by":"publisher","DOI":"10.1021\/nn303396c"},{"key":"e_1_2_6_37_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp061487m"},{"key":"e_1_2_6_38_1","doi-asserted-by":"publisher","DOI":"10.1038\/scientificamerican1092-50"},{"key":"e_1_2_6_39_1","doi-asserted-by":"publisher","DOI":"10.1038\/35005001"},{"key":"e_1_2_6_40_1","doi-asserted-by":"publisher","DOI":"10.1038\/35023100"},{"key":"e_1_2_6_41_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.201203171"},{"key":"e_1_2_6_42_1","doi-asserted-by":"publisher","DOI":"10.1021\/nl2025272"},{"key":"e_1_2_6_43_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp2001223"},{"key":"e_1_2_6_44_1","doi-asserted-by":"publisher","DOI":"10.1021\/nl3035674"},{"key":"e_1_2_6_45_1","doi-asserted-by":"publisher","DOI":"10.1021\/nl060483q"},{"key":"e_1_2_6_46_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp075042p"},{"key":"e_1_2_6_47_1","doi-asserted-by":"publisher","DOI":"10.1021\/nn9001177"},{"key":"e_1_2_6_48_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp1074626"},{"key":"e_1_2_6_49_1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.104.157403"},{"key":"e_1_2_6_50_1","doi-asserted-by":"publisher","DOI":"10.1021\/nl104054t"},{"key":"e_1_2_6_51_1","doi-asserted-by":"publisher","DOI":"10.1021\/jz400125r"},{"key":"e_1_2_6_52_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja076363h"}],"container-title":["Small"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fsmll.201302896","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.201302896","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,7]],"date-time":"2023-10-07T10:14:26Z","timestamp":1696673666000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/smll.201302896"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,4,9]]},"references-count":52,"journal-issue":{"issue":"14","published-print":{"date-parts":[[2014,7]]}},"alternative-id":["10.1002\/smll.201302896"],"URL":"https:\/\/doi.org\/10.1002\/smll.201302896","archive":["Portico"],"relation":{},"ISSN":["1613-6810","1613-6829"],"issn-type":[{"value":"1613-6810","type":"print"},{"value":"1613-6829","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,4,9]]}}}