Academic literature on the topic 'Shottky-barrier'

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Journal articles on the topic "Shottky-barrier"

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Irokawa, Yoshihiro, Encarnación A. García Víllora, and Kiyoshi Shimamura. "Shottky Barrier Diodes on AlN Free-Standing Substrates." Japanese Journal of Applied Physics 51 (March 26, 2012): 040206. http://dx.doi.org/10.1143/jjap.51.040206.

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Irokawa, Yoshihiro, Encarnación A. García Víllora, and Kiyoshi Shimamura. "Shottky Barrier Diodes on AlN Free-Standing Substrates." Japanese Journal of Applied Physics 51, no. 4R (April 1, 2012): 040206. http://dx.doi.org/10.7567/jjap.51.040206.

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Musaeva, S. N., E. A. Kerimov, N. F. Kazımov, and S. I. Huseynova. "Platinum Silicide-Silicon Schottky Diode Characteristics." Modern Electronic Technology 2, no. 2 (July 27, 2018): 41. http://dx.doi.org/10.26549/met.v2i2.850.

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Abstrat: Photoelectric measurements are used to obtain additional information on the transportation mechanism of Schottky barrier structures.The main purpose of the study is to investigate the photoelectric properties of Shottky diodes based on PtSi - n - Si and PtSi - p - Si contacts.
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Давыдов, С. Ю. "О контакте двумерного переходного металла с графеноподобным соединением." Физика твердого тела 63, no. 6 (2021): 817. http://dx.doi.org/10.21883/ftt.2021.06.50945.009.

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Within the scope of the simple model analytical expressions for the charge transfer and the Shottky barrier height on the contact of two-dimensional d-metal with graphene-like ANB8-N compound are obtained. It is shown that 2D metal character can be taken into account by the d-band contraction. Using Gr – 2DM and hBN – 2DM systems as an example, it is demonstrated that the proposed approach gives the appropriate results.
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Petrova, M. "Melebaev D., Merdanov M., Myradova A. SHOTTKY BARRIER OPTICAL SPECTROMETER ON GRADED-GAP SEMICONDUCTORS." National Association of Scientists 1, no. 36(63) (February 15, 2021): 4–7. http://dx.doi.org/10.31618/nas.2413-5291.2021.1.63.357.

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В работе приводятся данные по видовому разнообразию селитебной микобиоты Республики Башкортостан. Изучение проводится с 2006г. по настоящее время. На сегодняшний день подробно изучена микобиота четырех городов – Стерлитамак, Салават, Ишимбай и Бирск. В работе представлена общая видовая насыщенность селитебной микобиоты республики. Приводится анализ общего систематического списка и общий обзор видового состава.
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Drouin, D., R. Gauvin, J. Beauvais, P. Hovington, and D. C. Joy. "Characterization of schottky depletion zone using EBIC imaging." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 152–53. http://dx.doi.org/10.1017/s0424820100163228.

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Scanning Electron Microscopy (SEM) has been widely used to characterize semiconductor materials. Approximately one half of all SEMs are used by the electronic industry. The SEM can be used as a local current source that can be scanned over semiconductor device surfaces. This imaging mode is called Electron Beam Induced Current (EBIC).A depletion zone formed by a Schottky diode is visualized using this technique. This Shottky diode is fabricated by placing a metal contact on a semiconductor surfaces. The work function of the metal and the semiconductor produce an equilibrium contact potential. This potential barrier occurs across a region free of charge carriers and thus an electric field is present. This region is called a depletion zone.
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SVISTUNOV, V. M., O. V. GRIGUT', A. I. DYACHENKO, and YU F. REVENKO. "EFFECT OF JOSEPHSON MEDIUM UNDER TUNNELING IN BI-SR-CA-CU-O." Modern Physics Letters B 06, no. 22 (September 20, 1992): 1391–96. http://dx.doi.org/10.1142/s0217984992001095.

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Tunneling characteristics of high-T c oxide superconductor Bi-Sr-Ca-Cu-O have been measured in the wide bias voltage and temperature range. Near zero bias voltage tunneling conductivity σ (U) is expressed by the U1/2 at low temperature, which goes to the linear one at U > 100 mV . Background conductivity metaloxide is determined by Shottky barrier on surface high-T c . It has been found that the peaks of σ (U) curves for low-ohmic contacts are well described theoretical model of destruction of superconductivity of the intergranular weak links. Parameters of these links are estimated. Zero bias anomaly conductivity peaks are explained by breakdown weak links with small critical current.
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EL-BANNA, M. "The switching characteristics of Shottky-barrier diodes under high-level injection with a non-zero field at the depletion layer edge." International Journal of Electronics 84, no. 5 (May 1998): 445–52. http://dx.doi.org/10.1080/002072198134553.

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MORALES-SÁNCHEZ, E., J. GONZÁLEZ-HERNÁNDEZ, R. RAMÍREZ-BON, F. ESPINOZA-BELTRÁN, Y. VOROBIEV, A. MORALES-ACEVEDO, PETRO GORLEY, Z. KOVALYUK, and PAUL HORLEY. "CdTe and Si SOLAR CELL PERFORMANCE COMPARISON IN A NEW SYSTEM FOR SOLAR ENERGY CONVERSION AND STORAGE." Modern Physics Letters B 15, no. 17n19 (August 20, 2001): 597–600. http://dx.doi.org/10.1142/s0217984901002087.

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A new system for the effective conversion and storage of solar energy using CdTe and Si based photovoltaic solar cells and the Li- Bi 2 Se 3 rechargable batteries was created and studied. PV Solar Cells with the different types of structure and barrier were studied (Shottky. MIS with thin insulating layer, and p-n junction), employing low-temperature and high-temperature technological cycles. The influence of the technological details upon the electrical parameters as well as the efficiency and stability of their performance were analyzed, and also the condition for improving the efficiency were found. In particular, it was established that Zn-doping of CdTe and the Al alloying to Si at 800°C have a profound effect upon the PV cell characteristics. The influence of the recombination in different parts of the cell upon the cell's efficiency and the recombination dependence upon the technological features were investigated. A comparison of the performance and fabrication cost of the new systems for solar energy conversion and storage with others using conventional cells and batteries is made. It is shown that newly developed systems could provide a global efficiency close to that for traditional ones, with simpler and cheaper technology. With some modifications of the technology, we expect to get even higher efficiencies and a wider system operation temperature range. The possibilities are discussed for the creation of a hybrid energy conversion system on the basis of our cells and batteries, with an overall efficiency of transformation of solar-to-electric energy around 40%.
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Wan, Jun Hua, Kai Huang, and Li Wan. "Shottky Contact Device Based on a Single WO3 Nanowire for Ultraviolet Photodetector." Applied Mechanics and Materials 556-562 (May 2014): 2097–100. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.2097.

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To distinguish the ultraviolet (UV) photoresponse of Ohmic and Schottky contact devices, we have fabricated symmetrical and nonsymmetrical devices by standard lithography based on a single WO3 nanowire. For the Ohmic contact device, the photocurrent can change from 100 nA to 300 nA. Even 200 s under UV illumination, nonsaturated photocurrent can be observed, and the fall time is more than 1000 s. But for the Schottky contact device, the rise and fall time are faster than that of Ohmic device. The barrier height of Schottky device can be easily controlled through the oxygen adsorption and desorption on the junction region, which can be served as a ‘‘gate’’ that effectively tunes the conductance of the device. Therefore, the Schottky barrier plays a very important role in the rapid-response of UV photodetector.
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Dissertations / Theses on the topic "Shottky-barrier"

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Teich, Sebastian. "Oberflächenphotospannung an dünnen organischen Schichten auf Metallsubstraten." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1239005029403-92681.

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Gegenstand dieser Arbeit ist die Untersuchung der Ober?ächen- bzw. Grenz?ächenphotospannung (SPV) an dünnen organischen Schichten auf Metallsubstraten. Besonderes Augenmerk gilt dabei dem System dünner Schichten von 3,4,9,10-Perylen- Tetracarbonsäure-Di-Anhydrid (PTCDA) auf einem Au(110)-Kristall. Für diese Untersuchungen wurde eine phasensensitive Methode auf der Basis der Photoelektronenspektroskopie (PES) mit zusätzlicher modulierter Lichteinstrahlung entwickelt, die es erlaubt, lichtinduzierte Verschiebungen des Ober?ächenpotentials mit einer Au?ösung ? 1mV zu detektieren. Diese modulierte Photoelektronenspektroskopie wird ausführlich vorgestellt. Eine makroskopische Kelvin-Sonde und die Kelvin-Sonden-Rasterkraftmikroskopie (KPFM) werden als weitere Möglichkeiten zur Bestimmung des Ober?ächenpotentials vorgestellt. Die Photospannung wird mit diesen Methoden in Bezug auf drei Parameter untersucht: Da die Barriere an der Grenz?äche, welche für die Ausbildung der Photospannung ursächlich ist, durch die Photospannung reduziert wird, geben Messungen der SPV in Abhängigkeit von der eingestrahlten Lichtleistung Informationen über die energetische Struktur der Grenz?äche, speziell über die Höhe der Barriere. Mit den ebenfalls aus diesen Methoden gewonnen Informationen über die Austrittsarbeit und Ionisationsenergie von PTCDA lässt sich ein Bandschema des Systems Au/PTCDA entwickeln. Die wellenlängenabhängigen Messungen zeigen, dass Exzitonen in verschiedenen Zuständen erzeugt werden. Diese werden mit unterschiedlichen Photonenenergien angeregt und besitzen unterschiedliche Di?usionslängen. Da die Exzitonen zum Dissoziieren an die Grenz?äche di?undieren müssen, tragen die unterschiedlichen Exzitonenzust ände mit unterschiedlichem Anteil zur Photospannung bei. Die Untersuchungen der Entstehungs- und Zerfallszeit zeigen, dass sich die Photospannung sehr schnell nach Lichteinschaltung aufbaut. Der Abbau der Photospannung nach Lichtabschaltung erfolgt vergleichsweise langsam. Dies bedeutet, dass die Ladungsträger, die nach der Ladungsträgertrennung in der organischen Schicht zur ückbleiben, in Fallenzuständen gebunden sind, aus denen sie thermisch aktiviert werden müssen. In einem separaten Abschnitt werden die Entwicklung sowie Messergebnisse eines Stimmgabel-Rasterkraftmikroskops (AFM) vorgestellt. Dieses ermöglicht die hochau ?ösende topographische Abbildung der Ober?äche mit einer vertikalen Sensitivität im Ångström-Bereich. Das Ziel, mit diesem Gerät KPFM zu betreiben, konnte beim Einsatz an Luft nicht verwirklicht werden
Subject of this work is the investigation of surface and interface photovoltage (SPV) of thin organic films on metal substrates. Special attention is focused on the system of thin layers of 3,4,9,10-perylenetetracarboxylic-dianhydride (PTCDA) on an Au(110) crystal. For this investigation a novel phase sensitive method was developed based on photoelectron spectroscopy (PES) under additional modulated illumination. It provides the possibility to detect light induced changes in the surface potential with a resolution of about 1mV. This modulated photoelectron spectroscopy is described in detail. Macroscopic Kelvin probe and Kelvin probe force microscopy (KPFM) are presented as further possibilities to measure the surface potential. The photovoltage is investigated by these techniques regarding three parameters: Due to the fact that the barrier at the interface is responsible for the formation of the photovoltage and that the height of this barrier is reduced by the photovoltage, the measurement of the dependence of the SPV on the intensity of the incident light provides information about the energetic structure of the interface. Together with the values of the work function and the ionisation energy of PTCDA, also gained with this methods, a band diagram of the interface can be developed. The wavelength dependent measurements show that excitons can be generated in multiple states. They are excited at different photon energies and have different diffusion lengths. The excitons have to diffuse to the interface to dissociate. Therefore the different excitation states contribute to SPV with different amounts. The investigations upon the generation and decay of the photovoltage shows that the SPV signal appears immediately after switching on the illumination. The decay of the photovoltage after switching off the light is much slower. This implies that the charge carriers are trapped as they remain in the organic film after charge separation at the interface. They have to be thermally activated from this traps. In an extra chapter the development and measurement results of a tuning fork scanning force microscope (AFM) are described. This AFM features high resolution topography images with a vertical sensitivity in the range of single angstroms
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2

Teich, Sebastian. "Oberflächenphotospannung an dünnen organischen Schichten auf Metallsubstraten." Doctoral thesis, Technische Universität Dresden, 2008. https://tud.qucosa.de/id/qucosa%3A23728.

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Gegenstand dieser Arbeit ist die Untersuchung der Ober?ächen- bzw. Grenz?ächenphotospannung (SPV) an dünnen organischen Schichten auf Metallsubstraten. Besonderes Augenmerk gilt dabei dem System dünner Schichten von 3,4,9,10-Perylen- Tetracarbonsäure-Di-Anhydrid (PTCDA) auf einem Au(110)-Kristall. Für diese Untersuchungen wurde eine phasensensitive Methode auf der Basis der Photoelektronenspektroskopie (PES) mit zusätzlicher modulierter Lichteinstrahlung entwickelt, die es erlaubt, lichtinduzierte Verschiebungen des Ober?ächenpotentials mit einer Au?ösung ? 1mV zu detektieren. Diese modulierte Photoelektronenspektroskopie wird ausführlich vorgestellt. Eine makroskopische Kelvin-Sonde und die Kelvin-Sonden-Rasterkraftmikroskopie (KPFM) werden als weitere Möglichkeiten zur Bestimmung des Ober?ächenpotentials vorgestellt. Die Photospannung wird mit diesen Methoden in Bezug auf drei Parameter untersucht: Da die Barriere an der Grenz?äche, welche für die Ausbildung der Photospannung ursächlich ist, durch die Photospannung reduziert wird, geben Messungen der SPV in Abhängigkeit von der eingestrahlten Lichtleistung Informationen über die energetische Struktur der Grenz?äche, speziell über die Höhe der Barriere. Mit den ebenfalls aus diesen Methoden gewonnen Informationen über die Austrittsarbeit und Ionisationsenergie von PTCDA lässt sich ein Bandschema des Systems Au/PTCDA entwickeln. Die wellenlängenabhängigen Messungen zeigen, dass Exzitonen in verschiedenen Zuständen erzeugt werden. Diese werden mit unterschiedlichen Photonenenergien angeregt und besitzen unterschiedliche Di?usionslängen. Da die Exzitonen zum Dissoziieren an die Grenz?äche di?undieren müssen, tragen die unterschiedlichen Exzitonenzust ände mit unterschiedlichem Anteil zur Photospannung bei. Die Untersuchungen der Entstehungs- und Zerfallszeit zeigen, dass sich die Photospannung sehr schnell nach Lichteinschaltung aufbaut. Der Abbau der Photospannung nach Lichtabschaltung erfolgt vergleichsweise langsam. Dies bedeutet, dass die Ladungsträger, die nach der Ladungsträgertrennung in der organischen Schicht zur ückbleiben, in Fallenzuständen gebunden sind, aus denen sie thermisch aktiviert werden müssen. In einem separaten Abschnitt werden die Entwicklung sowie Messergebnisse eines Stimmgabel-Rasterkraftmikroskops (AFM) vorgestellt. Dieses ermöglicht die hochau ?ösende topographische Abbildung der Ober?äche mit einer vertikalen Sensitivität im Ångström-Bereich. Das Ziel, mit diesem Gerät KPFM zu betreiben, konnte beim Einsatz an Luft nicht verwirklicht werden.
Subject of this work is the investigation of surface and interface photovoltage (SPV) of thin organic films on metal substrates. Special attention is focused on the system of thin layers of 3,4,9,10-perylenetetracarboxylic-dianhydride (PTCDA) on an Au(110) crystal. For this investigation a novel phase sensitive method was developed based on photoelectron spectroscopy (PES) under additional modulated illumination. It provides the possibility to detect light induced changes in the surface potential with a resolution of about 1mV. This modulated photoelectron spectroscopy is described in detail. Macroscopic Kelvin probe and Kelvin probe force microscopy (KPFM) are presented as further possibilities to measure the surface potential. The photovoltage is investigated by these techniques regarding three parameters: Due to the fact that the barrier at the interface is responsible for the formation of the photovoltage and that the height of this barrier is reduced by the photovoltage, the measurement of the dependence of the SPV on the intensity of the incident light provides information about the energetic structure of the interface. Together with the values of the work function and the ionisation energy of PTCDA, also gained with this methods, a band diagram of the interface can be developed. The wavelength dependent measurements show that excitons can be generated in multiple states. They are excited at different photon energies and have different diffusion lengths. The excitons have to diffuse to the interface to dissociate. Therefore the different excitation states contribute to SPV with different amounts. The investigations upon the generation and decay of the photovoltage shows that the SPV signal appears immediately after switching on the illumination. The decay of the photovoltage after switching off the light is much slower. This implies that the charge carriers are trapped as they remain in the organic film after charge separation at the interface. They have to be thermally activated from this traps. In an extra chapter the development and measurement results of a tuning fork scanning force microscope (AFM) are described. This AFM features high resolution topography images with a vertical sensitivity in the range of single angstroms.
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Conference papers on the topic "Shottky-barrier"

1

Gorbachev, A. Yu. "Electron ballistic transport in submicron GaAs Shottky barrier diode." In 16th International Conference on Infrared and Millimeter Waves. SPIE, 1991. http://dx.doi.org/10.1117/12.2297952.

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Ivanov, V. D., and S. B. Tihomirov. "Thermovision System Based on the IR CCD Matrix on PtSi with Shottky Barrier." In 2000 Quantitative InfraRed Thermography. QIRT Council, 2000. http://dx.doi.org/10.21611/qirt.2000.054.

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Aslanov, Sh S., H. R. Nuriyev, and F. B. Dadasheva. "Silicon solar cells with Shottky barrier based on metal films with different crystal state." In 4th International Conference on Thin Film Physics and Applications, edited by Junhao Chu, Pulin Liu, and Yong Chang. SPIE, 2000. http://dx.doi.org/10.1117/12.408439.

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Lee, Jae-Hoon, Young-Sun Kwak, Jae-Hyun Jeong, Heon-Bok Lee, Wantae Lim, Ki-Se Kim, Ki-Won Kim, Dong-Suck Kim, and Jung-Hee Lee. "Reduction in Shottky barrier height of AlGaN-based SBD with in-situ deposited silicon carbon nitride (SiCN) cap layer." In 2012 24th International Symposium on Power Semiconductor Devices & IC's (ISPSD). IEEE, 2012. http://dx.doi.org/10.1109/ispsd.2012.6229070.

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