نتایج جستجو برای: transmittance spectrum

تعداد نتایج: 228032  

Journal: :Advanced Energy Materials 2021

Visibly transparent luminescent solar concentrators (TLSC) can optimize both power production and visible transparency by selectively harvesting the invisible portion of spectrum. Since primary applications TLSCs include building envelopes, greenhouses, automobiles, signage, mobile electronics, maintaining aesthetics functionalities is as important achieving high conversion efficiencies (PCEs) ...

2009
Jacqualine Jackson Butterfield David D. Allred

transmittance and reflectance, the imaginary part can be determined from transmittance data alone. It is possible to use Kramers-Kronig analysis to calculate the real part if the imaginary part is known over a sufficiently broad range. We show that the delta calculated from reflection and transmission data without taking into account roughness may underestimate the real part of the refractive i...

2004
Wei-Chung Cheng Massoud Pedram

This chapter presents transmittance scaling; a technique aimed at conserving power in a transmissive TFT-LCD with a cold cathode fluorescent lamp (CCFL) backlight by reducing the backlight illumination while compensating for the luminance loss. This goal is accomplished by adjusting the transmittance function of the TFT-LCD panel while meeting an upper bound on a contrast distortion metric. Exp...

Journal: :Silicon 2021

A detailed theoretical investigation of one dimensional SiO2/TiO2 photonic crystal based ZnO-Pt dye sensitized solar cell with N719 is carried out. The optical properties the theoretically designed such as transmittance, absorptance and reflectance are calculated using transfer matrix method in order to calculate numerically key parameters like open circuit voltage (VOC), short current (Jsc) ef...

Journal: :Coatings 2021

The homogeneous SiO2-TiO2 composite sols were prepared by organic-inorganic synchronous polymerization with titanium isopropoxide and tetrabutyl silicate as precursor. hard coating Si-O-Ti the framework was adding compound crosslinkers (up-401) 3-Methacryloxypropyltrimethoxysilane (KH-560). structure of hardened film characterized infrared spectrum, scanning electron microscopy, atomic force pa...

2012
Fatimah A. Noor Ferry Iskandar Mikrajuddin Abdullah Khairurrijal

In this paper, we have developed a model of the tunneling current through a highdielectric stack in MOS capacitors with anisotropic masses. The transmittance was numerically calculated by employing a transfer matrix method and including longitudinal-transverse kinetic energy coupling which is represented by an electron phase velocity in the gate. The transmittance was then applied to calculate ...

2012
Min-Chul Jun Jung-Hyuk Koh

Aluminum-doped zinc oxide (AZO) thin films have been deposited on glass substrates by employing radio frequency (RF) sputtering method for transparent conducting oxide applications. For the RF sputtering process, a ZnO:Al2O3 (2 wt.%) target was employed. In this paper, the effects of near infrared ray (NIR) annealing technique on the structural, optical, and electrical properties of the AZO thi...

Journal: :Proceedings. Biological sciences 2010
Carlos A Mazza Miriam M Izaguirre Javier Curiale Carlos L Ballaré

Caliothrips phaseoli, a phytophagous insect, detects and responds to solar ultraviolet-B radiation (UV-B; lambda <or= 315 nm) under field conditions. A highly specific mechanism must be present in the thrips visual system in order to detect this narrow band of solar radiation, which is at least 30 times less abundant than the UV-A (315-400 nm), to which many insects are sensitive. We constructe...

Journal: :iranian journal of science and technology (sciences) 2011
n. durna

there are many different ways to subdivide the spectrum of a bounded linear operator; some of them aremotivated by applications to physics (in particular, quantum mechanics). in this study, the relationship betweenthe subdivisions of spectrum which are not required to be disjoint and goldberg's classification are given.moreover, these subdivisions for some summability methods are studied.

Journal: :Applied optics 1970
W H Lee

A technique to determine a real nonnegative function representing the transmittance of a synthesized hologram is described. The technique uses the positions of the samples in the synthesized hologram to record the phase information of a complex wavefront. Synthesized holograms are displayed on a flying spot scanner and recorded on film. The transmittance of the synthesized hologram is quantized...

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