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    Electrogenerated Chemiluminescence of Near-Infrared-Emitting CdSe@CdSe Nanorods in Aqueous Solution

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    jes-ecs[1].pdf
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    Author
    Zhuang, Yafeng
    Zheng, Yilong
    Saavedra, S. Scott
    Pavlopoulos, Nicholas G.
    Pyun, Jeffrey
    Affiliation
    Univ Arizona, Dept Chem & Biochem
    Issue Date
    2020-04-14
    
    Metadata
    Show full item record
    Publisher
    ELECTROCHEMICAL SOC INC
    Citation
    Yafeng Zhuang et al 2020 J. Electrochem. Soc. 167 066516
    Journal
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY
    Rights
    © 2020 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Electrogenerated chemiluminescence (ECL) was observed from TOPO-capped CdSe@CdSe nanorods (NRs) depositing on a metal electrode in phosphate buffer solution (PBS). Two ECL peaks at -1.05 and -1.33 V in pH 9.2, 0.1 M PBS were found under cyclic voltammetric conditions. Cyclic voltammetry of this solution displayed no distinctive features, on the other hand, light emission was observed during cyclic potential scans. The photoluminescence (PL) spectrum showed an emission maximum at 692 nm. The spectrum of ECL possesses one peak which coincides very well with the PL spectrum of the nanorods film. The mechanism for ECL peaks was proposed. Electron transfer reactions between charged nanorods and molecular redox-active coreactants such as dissolved oxygen and H2O2 or between positively and negatively charged nanorods occurred that led to electron and hole annihilation, producing light. (C) 2020 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited.
    ISSN
    0013-4651
    EISSN
    1945-7111
    DOI
    10.1149/1945-7111/ab864c
    Version
    Final accepted manuscript
    ae974a485f413a2113503eed53cd6c53
    10.1149/1945-7111/ab864c
    Scopus Count
    Collections
    UA Faculty Publications

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