| En Route to White-Light Generation Utilizing Nanocomposites Composed of Ultrasmall CdSe Nanodots and Excited-State Intramolecular Proton Transfer Dyes. | |
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MedLine Citation:
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PMID: 21548559 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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One single material that emits white light is of paramount interest for the development of white light-emitting diodes (WLEDs). Here we report a novel nanocomposite, in which a new type of excited-sate intramolecular proton transfer (ESIPT) molecule, namely 5-(1,2-dithiolan-3-yl)-N-(2-{[4-(3-hydroxy-4-oxo-4H-chromen-2-yl)phenyl](methyl)amino}ethyl)pentanamide (HF-N-LA), is anchored onto the surface of ultrasmall CdSe quantum dots through dithiol functionality. Authentic white light with a CIE coordinate of (0.33, 0.33) could then be generated by confluence of 440 nm emission from CdSe and 570 nm proton-transfer tautomer emission from HF-N-LA. Moreover, linear color tunability could be achieved simply by altering relative amount of the two species, i.e., number of HF-N-LA onto CdSe, in one single nanocomposite, thus opening an innovative route toward applying nanocrystals in the field of WLEDs. |
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Authors:
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Hsin-Chieh Peng; Chia-Cheng Kang; Ming-Ren Liang; Chun-Yen Chen; Alexander Demchenko; Chao-Tsen Chen; Pi-Tai Chou |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-5-6 |
Journal Detail:
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Title: ACS applied materials & interfaces Volume: - ISSN: 1944-8244 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-5-9 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101504991 Medline TA: ACS Appl Mater Interfaces Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Chemistry, National Taiwan University , 1 Roosevelt Rd., Sec. 4 Taipei 106, Taiwan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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