Cyclometalated Platinum(II) Complexes with Donor-Acceptor-Containing Bidentate Ligands and Their Application Studies as Organic Resistive Memories

被引:7
作者
Poh, Wei Church [1 ,2 ]
Au-Yeung, Ho-Leung [1 ,2 ]
Chan, Alan Kwun-Wa [1 ,2 ]
Hong, Eugene Yau-Hin [1 ,2 ]
Cheng, Yat-Hin [1 ,2 ]
Leung, Ming-Yi [1 ,2 ]
Lai, Shiu-Lun [1 ,2 ]
Low, Kam-Hung [1 ,2 ]
Yam, Vivian Wing-Wah [1 ,2 ]
机构
[1] Univ Hong Kong, Inst Mol Funct Mat, Pokfulam Rd, Hong Kong, Peoples R China
[2] Univ Hong Kong, Dept Chem, Pokfulam Rd, Hong Kong, Peoples R China
关键词
Donor-acceptor systems; Charge transfer; Platinum(II); Cyclometalating C<^>N ligand; Organic resistive memories; TRIPLET EMITTERS; SOLVENT POLARITY; PHOTOPHYSICS; EMISSION; PHOTOSENSITIZERS; COORDINATION; MECHANISMS; SENSORS;
D O I
10.1002/asia.202100897
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of heteroleptic cyclometalated platinum(II) complexes, [Pt(C<^>N)(O<^>O)], (1-10) with various donors and acceptors has been synthesized and characterized by H-1 NMR spectroscopy, elemental analyses, infrared spectroscopy and mass spectrometry. The X-ray structure of 2 has also been determined. The electrochemical and photophysical properties of the platinum(II) complexes were studied. These experimental results have been supported by computational studies. Furthermore, two of the complexes have been employed as the active material in the fabrication of resistive memory devices, exhibiting stable binary memory performance with low operating voltage, high ON/OFF ratio and long retention time.
引用
收藏
页码:3669 / 3676
页数:8
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