Browsing by Keywords "Semiconductor"
Now showing items 1-20 of 21
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2D anisotropic photonic crystals of hollow semiconductor nanorod with liquid crystals
(2013)Photonic crystals (PCs) have many applications in order to control light-wave propagation. A novel type of two-dimensional anisotropic PC is investigated band gap and optical properties as a hollow semiconductor nanorod ... -
Applied Materials uses operations research to design its service and parts network
(Institute for Operations Research and the Management Sciences (INFORMS), 2010)Applied Materials Inc. is the global leader in nanomanufacturing technology solutions. It has a broad portfolio of innovative equipment, service, and software products and supports its customers worldwide with an extensive ... -
Atomic layer deposition: an enabling technology for the growth of functional nanoscale semiconductors
(Institute of Physics Publishing, 2017)In this paper, we present the progress in the growth of nanoscale semiconductors grown via atomic layer deposition (ALD). After the adoption by semiconductor chip industry, ALD became a widespread tool to grow functional ... -
Colloidal semiconductor nanocrystals
(Springer Singapore, 2022-10-28)In this chapter, we review colloidal semiconductor nanocrystals (NCs) and their remarkable size-dependent properties. We emphasize on colloidal nanoplatelets and explain how they differ from NCs of other classes. -
Cu doping induced structural and optical properties of bimetallic oxide nanodots by the vertical spark generation
(Polish Academy of Sciences, 2019-05)Undoped ZnO and Cu doped ZnO nanodots (NDs) were synthesized by the modified sparking technique with the Zn and Cu metal electrode pairs such as Zn–Zn, Zn–Cu and Cu–Cu. The effect of deposition geometry on the structural, ... -
Electron momentum and energy relaxation rates in GaN and AlN in the high-field transport regime
(The American Physical Society, 2003)Momentum and energy relaxation characteristics of electrons in the conduction band of GaN and AlN are investigated using two different theoretical approaches corresponding to two high electric-field regimes, one up to 1-2 ... -
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 ... -
High-conducting magnetic nanowires obtained from uniform titanium-covered carbon nanotubes
(American Physical Society, 2004)We have shown that a semiconducting single-wall carbon nanotube (SWNT) can be covered uniformly by titanium atoms and form a complex but regular atomic structure. The circular cross section changes to a squarelike form, ... -
Initial stages of Pt growth on Ge (001) studied by scanning tunneling microscopy and density functional theory
(American Physical Society, 2004)We have studied the initial stages of submonolayer Pt growth on the Ge(001). We have observed several stable and meta-stable adsorption configurations of Pt atoms at various temperatures. Calculations indicate relatively ... -
Metal nanoring and tube formation on carbon nanotubes
(American Physical Society, 2002)The structural and electronic properties of aluminum-covered single-wall carbon nanotubes (SWNT's) are studied from first principles for a large number of coverages. Aluminum-aluminum interaction, that is stronger than ... -
Oxygenation of carbon nanotubes: Atomic structure, energetics, and electronic structure
(American Physical Society, 2003)This paper presents an extensive and systematic analysis of the oxygenation of semiconducting and metallic single-wall carbon nanotubes by using the first principles pseudopotential plane wave method. Our study involves ... -
Persistent currents in helical structures
(American Physical Society, 2004)The recent discovery of mesoscopic electronic structures, in particular the carbon nanotubes, made necessary an investigation of what effect a helical symmetry of the conductor (metal or semiconductor) may have on the ... -
A photometric investigation of ultra-efficient LEDs with high color rendering index and high luminous efficacy employing nanocrystal quantum dot luminophores
(Optical Society of America, 2009-12-24)We report a photometric study of ultra-efficient light emitting diodes (LEDs) that exhibit superior color rendering index (CRI) and luminous efficacy of optical radiation (LER) using semiconductor quantum dot nanocrystal ... -
Quantum dot integrated LEDs using photonic and excitonic color conversion
(Elsevier, 2011-11-23)This review summarizes advantages, recent progress and challenges related to the quickly evolving research field of colloidal quantum dot integrated LEDs based on color conversion. We start with presenting a short general ... -
Radiative Dark-Bright Instability and Critical Casimir Effect in DQW Exciton Condensates
(Elsevier, 2011)It is already well known that radiative interband interaction in the excitonic normal liquid in semiconducting double quantum wells is responsible for a negligible splitting between the energies of the dark and bright ... -
Robust ground state and artificial gauge in DQW exciton condensates under weak magnetic field
(Elsevier B.V., 2014)An exciton condensate is a vast playground in studying a number of symmetries that are of high interest in the recent developments in topological condensed matter physics. In double quantum wells (DQWs) they pose highly ... -
Room temperature scanning Hall probe microscopy using GaAs/AlGaAs and Bi micro-hall probes
(Elsevier Science B.V., 2002)A room temperature scanning Hall probe microscope system utilizing GaAs/AlGaAs and bismuth micro-Hall probes was used for magnetic imaging of ferromagnetic domain structures on the surfaces of crystalline thin film garnets ... -
Solid-solution of Cd(formula)Zn(formula)S nanocrystals in the channels of mesostructured silica films
(Bilkent University, 2006)Mesostructured silica can be used as a reaction medium to produce solidsolution of Cd1-xZnxS nanocrystals as thin films. These films were synthesized from oligo(ethylene oxide) non-ionic surfactant (CH3(CH2)11(OCH2CH2)10OH, ... -
Systematic study of adsorption of single atoms on a carbon nanotube
(American Physical Society, 2003)We studied the adsorption of single atoms on a semiconducting and metallic single-wall carbon nanotube from first principles for a large number of foreign atoms. The stable adsorption sites, binding energy, and the resulting ... -
Theoretical study of Ga-based nanowires and the interaction of Ga with single-wall carbon nanotubes
(American Physical Society, 2004)Gallium displays physical properties which can make it a potential element to produce metallic nanowires and high-conducting interconnects in nanoelectronics. Using first-principles pseudopotential plane method we showed ...
