English  |  正體中文  |  简体中文  |  Items with full text/Total items : 56552/90363 (63%)
Visitors : 11827300      Online Users : 125
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/118694

    Title: Effects of P2O7 clusters arrangement on second harmonic generation responses of pyrophosphates
    Authors: Wei, Ping;Chen, Wenqiang;Jing, Qun;Lee, Ming-Hsien;Chen, Zhaohui
    Keywords: Pyrophosphates;P2O7 configurations;Second harmonic generation;Optical properties
    Date: 2020-06-25
    Issue Date: 2020-06-01 12:14:00 (UTC+8)
    Abstract: Phosphates with rich structural diversities and novel physicochemical properties can be regarded as the indispensible sources of optical functional materials. Therefore, the extensive research has been performed to search the suitable nonlinear optical (NLO) materials and unveil the relationship among the crystal structures, properties and functions of phosphates system. Herein, two pyrophosphates, namely, Na4P2O7 and β-Ca2P2O7 have been obtained and characterized. Results show that the two title compounds can achieve the coexistence of deep-ultraviolet (UV) cutoff edges (<190 nm) and observable second harmonic generation (SHG) effects (0.2 × and 0.5 × KH2PO4 (KDP)). Besides, the positive roles of alkaline and alkaline earth metals with larger radii or higher ratios of M/P2O7 on SHG effects of pyrophosphates can be concluded. Theoretical analysis reveals that their NLO effects mainly originate from O-2p and P-2p orbitals near to the Fermi level. In addition, their thermal properties, infrared spectra and elemental analysis were also discussed.
    Relation: Journal of Alloys and Compounds 827, 153922
    DOI: 10.1016/j.jallcom.2020.153922
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

    Files in This Item:

    File Description SizeFormat

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback