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Photophysical, spectroscopic properties and electronic structure of BND: Experiment and theory     
Yazarlar
Doç. Dr. Emine BABUR ŞAŞ Doç. Dr. Emine BABUR ŞAŞ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Mustafa Kurban
Kırşehir Ahi Evran Üniversitesi, Türkiye
Bayram Gündüz
Muş Alparslan Üniversitesi, Türkiye
Prof. Dr. Mustafa KURT Prof. Dr. Mustafa KURT
Kırşehir Ahi Evran Üniversitesi, Türkiye
Özet
The electronic structure, photophysical and spectroscopic properties of 2,5-Bis(1-naphthyl)-1,3,4-oxadiazole (BND) have been researched based on different solvent environments. The refractive index (n) is calculated using the semi-empirical relations based on measured energy gap (E-g) data. The lowest harmonic frequencies, Mulliken atomic charges, dipole moments, HOMO and LUMO energies were investigated using density functional theory (DFT). Moreover, ultraviolet-visible (UV-vis), energy gaps and radial distribution functions (RDFs) have been carried out using experiment and theory with B3LYP and CAM-B3LYP functionals. We also obtained the absorbance band edge and mass extinction coefficient of the BND solutions for dichloromethane (DCM) and chloroform. In addition, we investigated the optical and electrical conductance of the BND for related solvents. The HOMO and LUMO energy levels of the BND molecule in different solvent environments range from-2.17 to 2.21 eV and from -6.10 to -6.22 eV, indicating that the BND molecule will function well as electron transport materials in OLED applications. From obtained results, BND material has suitable optoelectronic parameters for the construction of functional materials, especially OLEDs.
Anahtar Kelimeler
BND | Oxadiazoles | Optical parameters | Optical band gap | DFT
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı SYNTHETIC METALS
Dergi ISSN 0379-6779
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 12-2018
Cilt No 246
Sayfalar 39 / 44
Doi Numarası 10.1016/j.synthmet.2018.09.013
Makale Linki https://linkinghub.elsevier.com/retrieve/pii/S037967791830376X