Nanotechnology Research Center
Recent Submissions
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Tunable deflection and asymmetric transmission of THz waves using a thin slab of graphene-dielectric metamaterial, with and without ENZ components
(Optical Society of America, 2018)Tunable deflection of obliquely incident, linearly polarized terahertz waves is theoretically studied in a wide frequency range around 20 THz, by combining a thin slab of graphene-dielectric metamaterial (with ten layers ... -
π-Conjugated nanostructured materials: preparation, properties and photonic applications
(Royal Society of Chemistry, 2018)This article reviews recent advances in p-conjugated nanostructures based on conjugated oligomers and polymers, focusing on their preparation, energy transfer abilities, optoelectronic and laser applications, and photophysical ... -
Superhydrophobic hexamethylene diisocyanate modified hydrolyzed polymers of ıntrinsic microporosity electrospun ultrafine fibrous membrane for the adsorption of organic compounds and oil/water separation
(American Chemical Society, 2018)Polymers of intrinsic microporosity (PIMs) have gained significant research interest because of their successful applications in adsorption and separation. PIM-1 is the first and most studied member of this class because ... -
Fabrication of thermally crosslinked hydrolyzed polymers of intrinsic microporosity (hpım)/polybenzoxazine electrospun nanofibrous membranes
(WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2018)In this study, thermally crosslinked hydrolyzed polymers of intrinsic microporosity (HPIM)/polybenzoxazine electrospun nanofibrous membranes (NFMs) are successfully produced. The nanofibers having 800 ± 260 to 670 ± 150 ... -
Thermal annealing effects on the electrical and structural properties of Ni/Pt Schottky contacts on the quaternary AlInGaN epilayer
(Springer US, 2018)Pt/Au, Ni/Au, Ni/Pt/Au Schottky contacts were placed on a quaternary Al0.84In0.13Ga0.03N epilayer. The electrical and structural properties of the as-deposited Pt/Au, Ni/Au, Ni/Pt/Au and annealed Ni/Pt/Au Schottky contacts ... -
Strategies for plasmonic hot‐electron‐driven photoelectrochemical water splitting
(Wiley - V C H Verlag GmbH & Co. KGaA, 2018)Photoelectrochemical water splitting (PEC‐WS) was inspired by the natural photosynthesis process that utilizes sunlight energy to produce chemical energy through splitting water to form hydrogen and oxygen. One recent ... -
Electronic and optical properties of atomic layer-deposited ZnO and TiO2
(Springer New York LLC, 2018)Metal oxides are attractive for thin film optoelectronic applications. Due to their wide energy bandgaps, ZnO and TiO2 are being investigated by many researchers. Here, we have studied the electrical and optical properties ... -
Tunable plasmonic silver nanodomes for surface-enhanced raman scattering
(Springer, 2018)Surface-enhanced Raman scattering (SERS) is an emerging analytical method used in biological and non-biological structure characterization. Since the nanostructure plasmonic properties is a significant factor for SERS ... -
Structural properties of InGaN/GaN/Al2O3 structure from reciprocal space mapping
(Springer, 2018)By using metal organic chemical vapor deposition technique, InGaN/GaN solar cell (SC) structure is deposited over sapphire (Al2O3) wafer as GaN buffer and GaN epitaxial layers. Structural properties of InGaN/GaN/Al2O3 SC ... -
Fast-dissolving carvacrol/cyclodextrin inclusion complex electrospun fibers with enhanced thermal stability, water solubility, and antioxidant activity
(Springer, 2018)Carvacrol is a known antioxidant molecule and commonly used in food and cosmetics as a flavor and fragrance agent; however, carvacrol has major issues such as high volatility, low water solubility, and stability. In this ... -
Encapsulation of camphor in cyclodextrin inclusion complex nanofibers via polymer-free electrospinning: enhanced water solubility, high temperature stability, and slow release of camphor
(Springer, 2018)Electrospinning of polymer-free nanofibers (NF) was successfully performed from inclusion complexes (ICs) of modified cyclodextrins [hydroxypropyl-β-cyclodextrin (HPβCD) and hydroxypropyl-γ-cyclodextrin (HPγCD)] and camphor ... -
Antioxidant electrospun zein nanofibrous web encapsulating quercetin/cyclodextrin inclusion complex
(Springer, 2018)Quercetin/gamma-cyclodextrin inclusion complex (quercetin/γ-CD-IC)-encapsulated electrospun zein nanofibers were designed as a quick and an efficient antioxidant nanofibrous material via electrospinning. Structural and ... -
Cyclodextrin short-nanofibers using sacrificial electrospun polymeric matrix for VOC removal
(Springer, 2018)Cyclodextrins (CD) are cyclic oligosaccharides that can form noncovalent host-guest inclusion complexes to yield intriguing supramolecular structures. Electrospinning of nanofibers from CD is challenging since they are ... -
Multilayer graphene broadband terahertz modulators with flexible substrate
(Springer New York LLC, 2018)Fabrication of terahertz modulators as simple devices with high modulation depth across a broad bandwidth is still very challenging. In this study, four different chemical vapor deposition grown multilayer graphene (MLG) ... -
Ultra-miniature dual-band antenna based on subwavelength resonators on LiNbO3 substrate
(Institution of Engineering and Technology, 2018)The common effect of subwavelength resonators and a high-permittivity lithium niobate substrate is used for deep-subwavelength miniaturization of a dual-band S/C-band monopole antenna. The resulting size is just about ... -
Ti-indiffused waveguide polarizers on lithium niobate for fiber optic gyroscope
(OSA - The Optical Society, 2018)We report our results on polarizing waveguides fabricated by Ti indiffusion technique on x-cut y-propagating LiNbO3. Polarizing Ti indiffused waveguides with polarization extinction coefficient (PER) higher than 47 dB at ... -
Reduction of thermal strain induced rate error for navigation grade fiber optic gyroscope
(Optical Society of America, 2018)This paper presents an 8-fold reduction of thermal sensitivity of a navigation grade fiber optic gyroscope (FOG) coil. We used an advanced thermal modeling of a fiber optic gyroscope coil to obtain the strain fields along ... -
Synthesis and characterization of bio-based benzoxazines derived from thymol
(John Wiley and Sons, 2018)In the present study, bio-based benzoxazine resins were synthesized from bio-based phenolic compound; thymol, and three different amines; ethylamine, aniline and 1,6-diaminohexane, and paraformaldehyde by solvent-free ... -
Laser writing of nanostructures deep inside Gallium Arsenide (GaAs)
(OSA - The Optical Society, 2018)Recently, we have showed a direct laser writing method that enables the first subsurface modifications and functional devices created deep inside silicon. Here, we extend the technique demonstrating the first controlled ... -
Electronic band structure of rare-earth ferroelastics: theoretical investigations
(National Institute of Optoelectronics, 2018)In the present work, the electronic band structure and optical properties of RE2(MoO4)3 are investigated. The ground state energies and electronic structures were calculated using density functional theory (DFT) within the ...
