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Synthesis of a new 1,3,4-thiadiazole-substituted phenanthroimidazole derivative, its growth on glass/ITO as a thin film and analysis of some surface and optoelectronic properties        
Yazarlar
Öğr. Gör. Merve ZURNACI
Kastamonu Üniversitesi, Türkiye
Fatih Ünal
Türkiye
Serkan Demir
Giresun Üniversitesi, Türkiye
Doç. Dr. Mahmut GÜR
Kastamonu Üniversitesi, Türkiye
Prof. Dr. Nesrin ŞENER
Kastamonu Üniversitesi, Türkiye
Prof. Dr. İzzet ŞENER
Kastamonu Üniversitesi, Türkiye
Özet
A new phenanthroimidazole derivative (PMItz) bearing a 1,3,4-thiadiazole moiety was prepared and deposited as a thin film on a previously prepared glass/ITO substrate via the physical vapor deposition (PVD) method. The optical and surface morphological properties of the fabricated thin film, glass/ITO/PMItz, were investigated via UV-Vis spectroscopy, atomic force microscopy (AFM) and scanning electron microscopy (SEM). Subsequently, metal/ITO/PMItz/metal (metal: In and Ag) devices were fabricated and their electrical properties were investigated. The optical measurements revealed the reasonably high optical conductivities of the thin films. The energy band gap was calculated to be 2.96 eV, the absorption coefficient was calculated to be 1.3 × 106 m-1 and the optical conductivity was calculated to be 3.14 × 1014. The typical diode characteristics of the devices were demonstrated by electrical measurements. The current-voltage (I-V) measurements revealed that the devices exhibited photo-sensitivity, the photovoltaic effect and strong negative differential resistance (NDR) effect at certain voltage values. The ideality factors in the dark were calculated to be 2.4 and 2.54 for the In/ITO/PMItz/In and Ag/ITO/PMItz/Ag devices, respectively. According to the Hall effect measurements, the conductivity of PMItz was found to be p-type with high carrier mobility and concentration and low specific resistance. This journal is
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı New Journal of Chemistry
Dergi ISSN 1144-0546
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 10-2021
Doi Numarası 10.1039/D1NJ04375G
Makale Linki http://dx.doi.org/10.1039/d1nj04375g