Search Results - "Ozgur, U."

Enhancement of Be and Mg incorporation in wurtzite quaternary BeMgZnO alloys with up to 5.1 eV optical bandgap by TOPORKOV, M, AVRUTIN, V, OKUR, S, IZYUMSKAYA, N, DEMCHENKO, D, VOLK, J, SMITH, D. J, MORKOC, H, ÖZGÜR, Ü

“…A wide range of optical bandgap modulation up to 5.1 eV was achieved for quaternary BeMgZnO thin films prepared using plasma assisted molecular beam epitaxy,…”
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Preparation and properties of ZnO and devices by Izyumskaya, N., Avrutin, V., Özgür, Ü., Alivov, Y. I., Morkoç, H.

“…ZnO has gained interest in part because of its large exciton binding energy (60 meV), good for lasing with low threshold. The renewed interest in ZnO is…”
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Nondestructive atomic compositional analysis of BeMgZnO quaternary alloys using ion beam analytical techniques by Zolnai, Z., Toporkov, M., Volk, J., Demchenko, D.O., Okur, S., Szabó, Z., Özgür, Ü., Morkoç, H., Avrutin, V., Kótai, E.

“…•BeMgZnO thin layers were grown with plasma-assisted molecular beam epitaxy (MBE).•The Be contents were accurately measured with RBS and proton elastic…”
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Comparison of diagnostic performances of three different software packages in detecting coronary artery disease by Guner, Levent A., Karabacak, Nese Ilgin, Cakir, Tansel, Akdemir, Ozgur U., Kocaman, Sinan A., Cengel, Atiye, Unlu, Mustafa

“…Purpose Quantification of myocardial perfusion scintigraphy is frequently performed to assist physicians in detecting coronary artery disease (CAD). Software…”
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An open-source framework of neural networks for diagnosis of coronary artery disease from myocardial perfusion SPECT by Guner, Levent A., Karabacak, Nese Ilgin, Akdemir, Ozgur U., Karagoz, Pinar Senkul, Kocaman, Sinan A., Cengel, Atiye, Unlu, Mustafa

“…Background The purpose of this study is to develop and analyze an open-source artificial intelligence program built on artificial neural networks that can…”
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The nodal standard uptake value (SUV) as a prognostic factor in head and neck squamous cell cancer by Demirci, Umut, Coskun, Ugur, Akdemir, U Ozgur, Benekli, Mustafa, Kapucu, Ozlem, Ozkan, Secil, Cakir, Tansel, Baykara, Meltem, Buyukberber, Suleyman

“…The aim of present study is to evaluate the predictive and prognostic role of high [18F] fluoro-D-glucose (FDG) uptake of primary tumor and nodal metastasis in…”
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Evaluation of acute infection-induced endothelial dysfunction and its potential mediators by Kilickap, Mustafa, Goksuluk, Huseyin, Candemir, Basar, Kaya, Cansin T., Ozcan, Ozgur U., Turhan, Sibel, Vurgun, Kutay, Ozdemir, Aydan O., Erol, Cetin

“…Objectives Infl ammation plays an important role in the pathophysiology of atherosclerosis. Some studies suggest a link between chronic infections, an infl…”
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Improvement of carrier injection symmetry and quantum efficiency in InGaN light-emitting diodes with Mg delta-doped barriers by Zhang, F., Can, N., Hafiz, S., Monavarian, M., Das, S., Avrutin, V., Özgür, Ü., Morkoç, H.

“…The effect of δ-doping of In0.06Ga0.94N barriers with Mg on the quantum efficiency of blue light-emitting-diodes (LEDs) with active regions composed of 6 (hex)…”
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Enhanced Photon Absorption in Subwavelength Mercury Cadmium Telluride Layer for Infrared Detectors Operating at Higher Temperature by Sojib, Md, Sayeed, R., Avrutin, V., Ozgur, U., Dhar, N. K.

“…Enhancement of incident photon absorption in a subwavelength thick Mercury-Cadmium-Telluride (Hg 1-x Cd x Te, MCT) has been numerically analyzed in the MWIR…”
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Defect reduction in ( 11 2 ¯ 0 ) a -plane GaN by two-stage epitaxiallateral overgrowth by Ni, X., Özgür, Ü., Fu, Y., Biyikli, N., Xie, J., Baski, A. A., Morkoç, H., Liliental-Weber, Z.

“…The authors report a two-stage epitaxial lateral overgrowth (ELO) method to get uniformly coalesced ( 11 2 ¯ 0 ) a -plane GaN using metal organic chemical…”
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The effect of stair case electron injector design on electron overflow in InGaN light emitting diodes by Zhang, F., Li, X., Hafiz, S., Okur, S., Avrutin, V., Özgür, Ü., Morkoç, H., Matulionis, A.

“…Effect of two-layer (In0.04Ga0.96N and In0.08Ga0.92N) staircase electron injector (SEI) on quantum efficiency of light-emitting-diodes (LEDs) in the context of…”
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Two-step passivation for enhanced InGaN/GaN light emitting diodes with step graded electron injectors by Sheremet, V., Genç, M., Gheshlaghi, N., Elçi, M., Sheremet, N., Aydınlı, A., Altuntaş, I., Ding, K., Avrutin, V., Özgür, Ü., Morkoç, H.

“…Enhancement of InGaN/GaN based light emitting diode performance with step graded electron injectors through a two-step passivation is reported. Perimeter…”
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Stimulated emission and time-resolved photoluminescence in rf-sputtered ZnO thin films by Özgür, Ü., Teke, A., Liu, C., Cho, S.-J., Morkoç, H., Everitt, H. O.

“…Stimulated emission (SE) was measured from ZnO thin films grown on c-plane sapphire by rf sputtering. Free exciton transitions were clearly observed at 10 K in…”
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InGaN stress compensation layers in InGaN/GaN blue LEDs with step graded electron injectors by Sheremet, V., Gheshlaghi, N., Sözen, M., Elçi, M., Sheremet, N., Aydınlı, A., Altuntaş, I., Ding, K., Avrutin, V., Özgür, Ü., Morkoç, H.

“…We investigate the effect of InGaN stress compensation layer on the properties of light emitting diodes based on InGaN/GaN multiple quantum well (MQW)…”
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Degradation in AlGaN/GaN heterojunction field effect transistors upon electrical stress: Effects of field and temperature by Zhu, C. Y., Zhang, F., Ferreyra, R. A., Avrutin, V., Özgür, Ü., Morkoç, H.

“…AlGaN/GaN heterojunction field effect transistors (HFETs) with 2 μm gate length were subjected to on-state-high-field (high drain bias and drain current) and…”
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An Interesting Echocardiographic Imaging of D-Transposition of the Great Arteries by Tufekcioglu, Omac, Ozdogan, Ozgur U., Ozeke, Ozcan, Maden, Orhan, Karabal, Orhan

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Non-Arrhenius Degradation of AlGaN/GaN HEMTs Grown on Bulk GaN Substrates by Tapajna, M., Killat, N., Moereke, J., Paskova, T., Evans, K. R., Leach, J., Li, X., Ozgur, Ü, Morkoc, H., Chabak, K. D., Crespo, A., Gillespie, J. K., Fitch, R., Kossler, M., Walker, D. E., Trejo, M., Via, G. D., Blevins, J. D., Kuball, M.

“…The reliability of AlGaN/GaN HEMTs processed on bulk GaN substrates was studied using electrical and optical methods, showing a decreasing degradation with…”
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Optimizing epsilon-near-zero based plasmon assisted modulators through surface-to-volume ratio by Sojib, Mohammad, Fomra, Dhruv, Avrutin, Vitaliy, Özgür, Ü., Kinsey, Nathaniel

“…Plasmonic-based integrated nanophotonic modulators, despite their promising features, have one key limiting factor of large insertion loss (IL), which limits…”
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Temperature Dependence and Reflection of Coherent Acoustic Phonons in InGaN Multiple Quantum Wells by Özgür, Ü., Lee, C.-W., Everitt, H.O.

“…Sub‐picosecond optical pump–probe techniques were used to generate coherent zone‐folded longitudinal acoustic phonons (ZFLAPs) in an InGaN multiple quantum…”
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6-Month Follow-Up of Ablations for Idiopathic Ventricular Extrasystole/Tachycardia Performed with Conventional Method: A Single-Center Experience by Candemir, Başar, Altin, Ali T, Akyurek, Omer, Torbati, Mohammad, Kılıçkap, Mustafa, Ongun, Aydan, Özcan, Özgür U, Vurgun, Kutay, Güldal, Muharrem, Erol, Çetin

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