Browsing by Keywords "Optical films"

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Atomic Layer Deposition for Vertically Integrated ZnO Thin Film Transistors: Toward 3D High Packing Density Thin Film Electronics

Sisman, Z.; Bolat, S.; Okyay, A. K. (Wiley-VCH Verlag, 2017)

We report on the first demonstration of the atomic layer deposition (ALD) based three dimensional (3D) integrated ZnO thin film transistors (TFTs) on rigid substrates. Devices exhibit high on-off ratio (∼106) and high ...
Co doping induced structural and optical properties of sol-gel prepared ZnO thin films

Gungor, E.; Gungor, T.; Caliskan, D.; Ceylan, A.; Ozbay, E. (Elsevier BV, 2014-11)

The preparation conditions for Co doping process into the ZnO structure were studied by the ultrasonic spray pyrolysis technique. Structural and optical properties of the Co:ZnO thin films as a function of Co concentrations ...
Oxygen partial pressure dependence of magnetic, optical and magneto-optical properties of epitaxial cobalt-substituted SrTiO3 films

Onbaşli, M.C.; Goto, T.; Tang, A.; Pan, A.; Battal, E.; Okyay, A., K.; Dionne G.F.; Ross, C.A. (OSA - The Optical Society, 2015)

Cobalt-substituted SrTiO3 films (SrTi0.70Co0.30O3-δ) were grown on SrTiO3 substrates using pulsed laser deposition under oxygen pressures ranging from 1 μTorr to 20 mTorr. The effect of oxygen pressure on structural, ...
Self-limiting low-temperature growth of crystalline AlN thin films by plasma-enhanced atomic layer deposition

Ozgit, C.; Donmez I.; Alevli, M.; Biyikli, N. (2012)

We report on the self-limiting growth and characterization of aluminum nitride (AlN) thin films. AlN films were deposited by plasma-enhanced atomic layer deposition on various substrates using trimethylaluminum (TMA) and ...
Structural and loss characterization of SiON layers for optical waveguide applications

Driessen, A.; Ay, F.; Aydınlı, A.; Roeloffzen, C. (IEEE (Institute of Electrical and Electronics Engineers), 2000)

Silicon oxynitride films for optical waveguide applications were grown at 350°C in a PECVD reactor. ATR-FTIR spectroscopy was used to identify the bond structure and absorption characteristics in the mid-infrared region. ...
Structural, optical and electrical characteristics BaSrTiOx thin films: Effect of deposition pressure and annealing

Bayrak, T.; Ozgit-Akgun, C.; Goldenberg, E. (Elsevier BV * North-Holland, 2017)

Among perovskite oxide materials, BaSrTiOx (BST) has attracted great attention due to its potential applications in oxide-based electronics. However, reliability and efficiency of BST thin films strongly depend on the ...
Study of wet oxidized AlxGa1-xAs for integrated optics

Bek, A.; Aydinli, A.; Champlain, J. G.; Naone, R.; Dagli, N. (Institute of Electrical and Electronics Engineers, 1999)

An investigation of wet oxidized AlxGa1-xAs layers in integrated optical applications is reported. Refractive index and thickness shrinkage of wet oxidized AlxGa1-xAs layers are measured using spectroscopic ellipsometry. ...
Synthesis and optical properties of Co and Zn-based metal oxide nanoparticle thin films

Gungor, E.; Gungor, T.; Calıskan, D.; Ozbay, E. (Polish Academy of Sciences, 2017)

ZnO, Co doped ZnO (ZnO:Co) and CoO thin films were deposited on glass substrates by using the spark discharge technique with Zn-Zn, Zn-Co and Co-Co metal electrodes (tips). The structural and optical properties of the films ...
Thermally poled germanosilicate films with high second-Order nonlinearity

Ozean, A.; Digonnet, M.J.F.; Kino G.S.; Ay F.; Aydinli, A. (2005)

Accurate measurements of the second-order nonlinearity profile of thermally poled low-loss germanosilicate films grown on fused-silica substrates are reported, of interest as potential electro-optic devices. After optimization, ...