the fabrication of a non-doped red organic light-emitting device (oled) has been developed using naturally occurring curcumin as an emissive layer of oled. in this research, the electroluminescent spectrum (el) of curcumin as a donor-acceptor-donor (d-a-d) chromophore was obtained at wavelength of 612 nm. also, the maximum external quantum efficiencies (eqe) for this device was measured and fou...

In the present work, the exact diagonalization method had been implemented to calculate the ground state energy of shallow donor impurity located at finite distance along the growth axis in GaAs/AlGaAs heterostructure in the presence of a magnetic field taken to be along z direction. The impurity binding energy of the ground state had been calculated as a function of confining frequency and mag...

New donor-acceptor-donor (D-A-D)-type structures are widely used to design effective organic light-emitting diodes (OLEDs). In this communication, 4,7-bis(1,2,3,4,4a,9a-hexahydro-9H-carbazol-9-yl)-[1,2,5]oxadiazolo[3,4-d]pyridazine was obtained in a 65% yield by the treatment of 4,7-dichloro[1,2,5]oxadiazolo[3,4-d]pyridazine 1-oxide with 2,3,4,4a,9,9a-hexahydro-1H-carbazole. The structure newly...

Pada penelitian ini dilakukan modifikasi zat warna organik secara komputasi dengan struktur tipe D-A (Donor-Akseptor) dan D-π-A (Donor-π konjugasi-Akseptor). Struktur molekul digambarkan menggunakan software GaussView 6.0.16 dihitung paket Gaussian’16W metode DFT/TDDFT serta basis set B3LYP/6-31G. Zat trifenilamin digunakan sebagai rantai donor yang dimodifikasi cara memvariasikan akseptor. Var...

conclusions we found acceptable short-term survival in both groups; however, living donor recipients continue to have better long-term patient and graft survival rates. results although there were no significant differences in one-year survival rates of patient and graft between study groups, three-years survival rates of patient and graft were significantly longer in living donor kidney transp...

purpose: to evaluate the anatomical and visual outcomes of descemet`s stripping with endothelial keratoplasty (dsek) in patients with bullous keratopathy after cataract surgery. methods: the study was performed on 20 eyes of 20 patients (13 male, 7 female) with bullous keratopathy (pseudophakic=15, aphakic=5). donor lenticule was prepared using a microkeratome (n=12) or manual dissection (n=8)....

In propylene (C3) polymerization with Ziegler-Natta catalyst, not only internal donor but also external is very important to make isotactic polypropylene (PP) higher yield. Most propylene-based polymers have been commercially produced catalysts combined dialkyl-dialkoxy silane compounds (R2Si(OR)2) such as C-donor, P-donor, and D-donor donors. this paper, we will introduce the performance amino...