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pro vyhledávání: '"Yunkyoung Ha"'
Autor:
Seul Bee Lee, Yunkyoung Ha
Publikováno v:
Molecular Crystals and Liquid Crystals. 679:65-70
For efficient white organic light-emitting diodes (OLEDs), it’s needed to cover a wide range of visible light area. For these needs, we synthesized new types of yellowish green phosphoresce...
Publikováno v:
Molecular Crystals and Liquid Crystals. 659:121-126
For efficient white organic light-emitting diodes (OLEDs), it is necessary for luminescence to cover a wide range of visible light area. According to these needs, we synthesized new types of red ph...
Autor:
Yunkyoung Ha, Seul Bee Lee
Publikováno v:
Molecular Crystals and Liquid Crystals. 659:115-120
The new iridium complexes chelated with isoquinoline derivatives as an ancillary ligand were synthesized. The iridium complex phorsphors contained 2-phenylquinoline (pq) or 1-phenylisoquino...
Autor:
So Hyeon Cho, Yunkyoung Ha
Publikováno v:
Molecular Crystals and Liquid Crystals. 651:85-90
Photophysical luminescent and electrochemical properties of the phosphorescent iridium complexes chelated with 2-naphtylthienopyridyl (2-NTP) ligands were investigated. The use of highly conjugated...
Autor:
Yunkyoung Ha, So Hyeon Cho
Publikováno v:
Molecular Crystals and Liquid Crystals. 644:234-239
For the application to white organic light-emitting diodes (WOLEDs), new orange phosphorescent iridium complexes were designed and prepared. We introduced 1-(8-naphthyl)-isoquinoline ligand...
Autor:
Yunkyoung Ha, Hye Joo Lee
Publikováno v:
Polymer Bulletin. 73:2501-2509
The new heteroleptic orange light-emitting iridium complexes were synthesized and their luminescent properties were investigated. The iridium (III) complexes, Ir(4-Me-2,3-dpq)2(pbt-R) and Ir(ppy)2(pbt-R), were prepared, where 4-Me-2,3-dpq, ppy and pb
Publikováno v:
Journal of Nanoscience and Nanotechnology. 15:7754-7759
Recently, white organic light-emitting diodes (OLEDs) have aroused considerable attention because they have the potential of next-generation flexible displays and white illuminated applications. White OLED applications are particularly heading to the
Publikováno v:
Journal of the Korean Physical Society. 66:133-136
Transparent electrodes and heteroleptic iridium complexes have attracted tremendous scientific interest to organic light-emitting diodes (OLEDs) because they have an advantage in that transparent electrodes can replace indium-tin-oxide (ITO) electrod
Autor:
Yunkyoung Ha, Hye Rim Park
Publikováno v:
Molecular Crystals and Liquid Crystals. 597:114-119
The organic light-emitting diodes (OLEDs) using the iridium complexes of coumarin derivatives as emissive dopants were known to be highly efficient and stable. These coumarin-based Ir(III) complexes were reported to trap and transport electrons effec
Publikováno v:
Journal of Nanoscience and Nanotechnology. 13:3441-3445
According to a recent report, the organic light-emitting diodes (OLEDs) using the iridium complexes of coumarin derivatives as emissive dopants are highly efficient and stable. Unlike the other Ir(III) phopsphorescent dopants, these coumarin-based Ir