3 research outputs found
Synthesis and Characterization of Luminescent Cyclometalated Platinum(II) Complexes with Tunable Emissive Colors and Studies of Their Application in Organic Memories and Organic Light-Emitting Devices
No full textA series of luminescent cyclometalated
N^C^N [N^C^N = 1,3-bis(<i>N</i>-alkylbenzimidazol-2′-yl)benzene]platinum(II)
alkynyl and carbazolyl complexes has been prepared. The structure
of one platinum(II) carbazolyl complex has been characterized
by X-ray crystallography. The corresponding electrochemical
and photophysical properties have been explored and analyzed.
The N^C^N platinum(II) complexes displayed rich luminescence in degassed
dichloromethane solution, with their emission profiles dependent
on the coordinated alkynyl and carbazolyl ligands. Their emission
energies are correlated to the electronic properties of the alkynyl
and carbazolyl ligands. By varying the electronic properties
of the alkynyl and carbazolyl ligands, emission energies could
be fine-tuned to cover a wide range of the visible spectrum, as supported
by computational studies. A donor–acceptor platinum(II) complex
has been utilized to fabricate memory devices that exhibit binary
memory performances with low operating voltages, high ON/OFF
ratios, and long retention times. Solution-processable OLEDs have
been fabricated based on another platinum(II) carbazolyl complex,
resulting in a maximum external quantum efficiency of up to 7.2%,
which is comparable to that of the vacuum-deposited devices based
on the small-molecule counterpart, illustrating the multifunctional
nature of the platinum(II)-containing materials
Synthesis and Characterization of Luminescent Cyclometalated Platinum(II) Complexes with Tunable Emissive Colors and Studies of Their Application in Organic Memories and Organic Light-Emitting Devices
No full textA series of luminescent cyclometalated
N^C^N [N^C^N = 1,3-bis(<i>N</i>-alkylbenzimidazol-2′-yl)benzene]platinum(II)
alkynyl and carbazolyl complexes has been prepared. The structure
of one platinum(II) carbazolyl complex has been characterized
by X-ray crystallography. The corresponding electrochemical
and photophysical properties have been explored and analyzed.
The N^C^N platinum(II) complexes displayed rich luminescence in degassed
dichloromethane solution, with their emission profiles dependent
on the coordinated alkynyl and carbazolyl ligands. Their emission
energies are correlated to the electronic properties of the alkynyl
and carbazolyl ligands. By varying the electronic properties
of the alkynyl and carbazolyl ligands, emission energies could
be fine-tuned to cover a wide range of the visible spectrum, as supported
by computational studies. A donor–acceptor platinum(II) complex
has been utilized to fabricate memory devices that exhibit binary
memory performances with low operating voltages, high ON/OFF
ratios, and long retention times. Solution-processable OLEDs have
been fabricated based on another platinum(II) carbazolyl complex,
resulting in a maximum external quantum efficiency of up to 7.2%,
which is comparable to that of the vacuum-deposited devices based
on the small-molecule counterpart, illustrating the multifunctional
nature of the platinum(II)-containing materials
