Jang, Jae-Ho’s team published research in Synthetic Metals in 203 | CAS: 219508-27-7

Synthetic Metals published new progress about 219508-27-7. 219508-27-7 belongs to triazoles, auxiliary class Trifluoromethylated Building Blocks, name is 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine, and the molecular formula is C8H5F3N4, Safety of 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine.

Jang, Jae-Ho published the artcileBlue-green phosphorescent imidazole-based iridium(III) complex with a broad full width at half maximum for solution-processed organic light-emitting diodes, Safety of 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine, the publication is Synthetic Metals (2015), 180-186, database is CAplus.

A blue-green phosphorescent Ir(III) complex was designed and synthesized for solution-processed organic LEDs (OLEDs), (DMDPI)2Ir(tftap), that contains 1,2-dimethyl-4,5-diphenyl-1H-imidazole (DMDPI) as the main ligand and 2-(3-(trifluoromethyl)-1H-1,2,4-triazol-5-yl)pyridine (tftap) as an ancillary ligand. (DMDPI)2Ir(tftap) showed good solubility in common organic solvents such as CH2Cl2, CHCl3, toluene, and chlorobenzene. The luminescence (PL) of (DMDPI)2Ir(tftap) showed a maximum emission peak (λmax) of 532 nm in CH2Cl2 solution The HOMO and LUMO levels of (DMDPI)2Ir(tftap) are -5.36 and -2.76 eV, resp. Solution-processed blue-green OLEDs were fabricated based on (DMDPI)2Ir(tftap) with an ITO/PEDOT:PSS (30 nm)/26DCzPPy:(DMDPI)2Ir(tftap) (11%) (40 nm)/TPBi (60 nm)/CsF (1 nm)/Al structure. The electroluminescent (EL) spectra of (DMDPI)2Ir(tftap) exhibited a maximum emission peak at 522 nm with a broad full-width at half-maximum (FWHM) of 115 nm and Commission Internationale de L’Eclairage (CIE) coordinates of (0.33, 0.54) at 1000 cd m-2. The device with 11% doping concentration of (DMDPI)2Ir(tftap) exhibited a maximum luminance of 6304 cd m-2, a maximum luminous efficiency of 7.14 cd A-1, a power efficiency of 3.63 lm W-1, and an external quantum efficiency of 2.59%. White-emitting devices containing a single emissive layer consisting of PVK as a polymer host, (DMDPI)2Ir(tftap) as a blue-green dopant, and (PIQ)2Ir(acac) as a red dopant were fabricated. These devices exhibited CIE coordinates of (0.42, 0.48) at 1000 cd m-2, which are close to the standard warm white-light CIE coordinates of (0.44, 0.40).

Synthetic Metals published new progress about 219508-27-7. 219508-27-7 belongs to triazoles, auxiliary class Trifluoromethylated Building Blocks, name is 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine, and the molecular formula is C8H5F3N4, Safety of 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine.

Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics