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Optimization of a Collapsed Mode CMUT Receiver for Maximum Off-Resonance Sensitivity
(Institute of Electrical and Electronics Engineers, 2018-07-28)We propose an airborne collapse capacitive micromachined ultrasonic transducer (CMUT) as a practical viable ultrasound transducer capable of providing a stable performance at the off-resonance frequencies. Traditional ... -
Emerging accelerator platforms for data centers
(Institute of Electrical and Electronics Engineers, 2017-12-04)CPU and GPU platforms may not be the best options for many emerging compute patterns, which led to a new breed of emerging accelerator platforms. This article gives a comprehensive overview with a focus on commercial platforms. -
A Template-Based Design Methodology for Graph-Parallel Hardware Accelerators
(Institute of Electrical and Electronics Engineers Inc., 2017-05-19)Graph applications have been gaining importance in the last decade due to emerging big data analytics problems such as Web graphs, social networks, and biological networks. For these applications, traditional CPU and GPU ... -
Graph Analytics Accelerators for Cognitive Systems
(Institute of Electrical and Electronics Engineers, 2017)Hardware accelerators are known to be performance and power efficient. This article focuses on accelerator design for graph analytics applications, which are commonly used kernels for cognitive systems. The authors propose ... -
New high-resolution display device for holographic three-dimensional video: principles and simulations
(Bilkent University, 2017-08-03)A new acousto-optical holographic display device, which is expected to solve the display resolution and refresh problems that are common to available holographic displays, is proposed. The device is based on the ... -
Many-body effects in a two-component, one-dimensional electron gas with repulsive, short-range interactions
(Elsevier, 1998-03-09)We investigate the correlation effects in a two-component, one-dimensional electron gas interacting via repulsive δ function interactions. Electron correlations are treated within the approximation scheme of Singwi, Tosi, ... -
Fluorescence from graphene oxide and the influence of ionic, π π interactions and heterointerfaces: electron or energy transfer dynamics
(Royal Society of Chemistry, 2014-08-29)2D crystals such as graphene and its oxide counterpart have sought good research attention for their application as well as fundamental interest. Especially graphene oxide (GO) is quite interesting because of its versatility ... -
Eletrospun polyester/cycledextrin nanofibers for entrapment of volatile organic compounds
(Society of Plastics Engineers, 2014-02-03)Polyester (PET) nanofibers incorporating cyclodextrins (CD) were obtained via electrospinning. -CD, -CD, and -CD were used to functionalize PET nanofibers. Bead-free PET/CD nanofibers were obtained from lower polymer ... -
Resonant nonradiative energy transfer in CdSe/ZnS core/shell nanocrystal solids enhances hybrid white light emitting diodes
(Optical Society of America, 2008)We propose and demonstrate hybrid white light emitting diodes enhanced with resonant nonradiative energy transfer in CdSe/ZnS core/shell nanocrystal solids integrated on near-UV InGaN/GaN LEDs. We observe a relative quantum ... -
Near resonant third-order optical nonlinearities of colloidal InP/ZnS quantum dots
(AIP Publishing, 2013)We have investigated the third-order optical nonlinearities of high-quality colloidal InP/ZnS core-shell quantum dots (QDs) using Z-scan technique with femtosecond pulses. The two-photon absorption cross-sections as high ... -
Three-dimensional microfabricated broadband patch antenna for WiGig applications
(IEEE, 2014)The design, microfabrication, and characterization of a broadband patch antenna capable of covering the entire IEEE 802.11ad (WiGig) frequency band (57-66 GHz) are presented in this letter. A conductor-backed (CB) coplanar ... -
Bioactive surface design based on functional composite electrospun nanofibers for biomolecule immobilization and biosensor applications
(American Chemical Society, 2014-03-24)The combination of nanomaterials and conducting polymers attracted remarkable attention for development of new immobilization matrices for enzymes. Hereby, an efficient surface design was investigated by modifying the ... -
Functional electrospun polymeric nanofibers incorporating geraniol-cyclodextrin inclusion complexes: High thermal stability and enhanced durability of geraniol
(Elsevier, 2014-08)In this study, solid geraniol/cyclodextrin inclusion complexes (geraniol/CD-IC) were successfully prepared by using three types of native CD (alpha-CD, beta-CD and gamma-CD). The modeling studies for inclusion complexation ... -
Reusable bacteria immobilized electrospun nanofibrous web fro decolorization of methylene blue dye in wastewatewr treatment
(The Royal Society of Chemistry, 2014-07-03)In our study, an electrospun cellulose acetate nanofibrous web (CA-NFW) was found to be quite effective in immobilizing bacterial cells. Here, decolorization of methylene blue (MB) dye in aqueous medium was achieved by ... -
Self-aligning planarization and passivation for integration applications in III-V semiconductor devices
(IEEE, 2005)This paper reports an easy planarization and passivation approach for the integration of III-V semiconductor devices. Vertically etched III-V semiconductor devices typically require sidewall passivation to suppress leakage ... -
Solution Processed Tungsten Oxide Interfacial Layer for Efficient Hole-Injection in Quantum Dot Light-Emitting Diodes
(Wiley-VCH Verlag, 2014)A highly efficient and stable QLED using an inorganic WO3 nanoparticle film as a hole injection layer is demonstrated.The resulting WO3 nanoparticle-based QLEDs also exhibit superior performance compared to that of the ... -
Plasmonic backcontact grating for P3HT:PCBM organic solar cells enabling strong optical absorption increased in all polarizations
(Optical Society of America, 2011)In P3HT:PCBM based organic solar cells we propose and demonstrate numerically plasmonic backcontact grating architectures for strong optical absorption enhanced in both transverse-magnetic and transverse-electric polarizations. ... -
Electron-phonon interaction in bulk layered graphene and its oxide in the presence of alcohols in a device: Equilibrium molecular doping
(The Royal Society of Chemistry, 2014-08-22)We report on electron phonon interactions in bulk layered graphene (GRA) and its oxide (GO) under bias when exposed to 1° or 2° alcohol vapors, where we have focused on the change of Raman intensity of G and D bands as a ... -
Arrays of indefinitely long uniform nanowires and nanotubes
(Nature Publishing Group, 2011-06-12)Nanowires are arguably the most studied nanomaterial model to make functional devices and arrays(1,2). Although there is remarkable maturity in the chemical synthesis of complex nanowire structures(3,4), their integration ... -
Template free preparation of nanoporous organically modified silica thin films on flexible substrates
(Royal Society of Chemistry, 2011)We report the preparation and characterization of nanoporous organically modified silica (ormosil) thin films at room temperature and neutral pH conditions from homogeneous methyl silsesquioxane (MSQ) gels. Universally ...
