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Monday, August 3, 2020 | History

2 edition of Alternating-current thin-film electroluminescent device optical excitation experiments found in the catalog.

Alternating-current thin-film electroluminescent device optical excitation experiments

Bradford A. Cleary

Alternating-current thin-film electroluminescent device optical excitation experiments

by Bradford A. Cleary

  • 147 Want to read
  • 28 Currently reading

Published .
Written in English

    Subjects:
  • Electroluminescent devices -- Design and construction.

  • Edition Notes

    Statementby Bradford A. Cleary.
    The Physical Object
    Pagination93 leaves, bound :
    Number of Pages93
    ID Numbers
    Open LibraryOL18126573M

    Full text of "Wiley Physics Of Semiconductor Devices" See other formats. The thin film is effectively used as a hole transporting layer in LED devices. The bilayer LED device consisting of TPA-PS and tris(8-hydroxyquinoline) Aluminum, Alq3, shows high luminance (cd/m2) and high efficiency (4cd/A).

    This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation. A capacitor is a device that stores electrical energy in an electric is a passive electronic component with two terminals.. The effect of a capacitor is known as some capacitance exists between any two electrical conductors in proximity in a circuit, a capacitor is a component designed to add capacitance to a capacitor was originally known as a condenser.

    Applied Photochemistry encompasses the major applications of the chemical effects resulting from light absorption by atoms and molecules in chemistry, physics, medicine and engineering, and contains contributions from specialists in these key areas. Particular emphasis is placed both on how photochemistry contributes to these disciplines and on what the current developments are. A capacitor is a passive two-terminal electrical component that stores potential energy in an electric effect of a capacitor is known as some capacitance exists between any two electrical conductors in proximity in a circuit, a capacitor is a component designed to add capacitance to a capacitor was originally known as a condenser.


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Alternating-current thin-film electroluminescent device optical excitation experiments by Bradford A. Cleary Download PDF EPUB FB2

A new method of performing hot‐electron impact excitation experiments using alternating‐current thin‐film electroluminescent (ACTFEL) devices is reported.

This method relies on the use of a field‐control circuit to control the magnitude of the phosphor field and consists of plotting the intensity of a given electroluminescence transition, normalized by the amount of conduction charge Cited by: 1.

We have developed flexible ZnS:ErF3 alternating current thin film electroluminescent devices on molybdenum foils, and quantified the effect of insulator properties for the case of alumina (Al2O3. Zn2GeO4: Mn Alternating-Current Thin-Film Electroluminescent Devices Article in Journal of Luminescence 99(4) November with 64 Reads How we measure 'reads'.

An expression of the optical efficiency for alternating current thin film electroluminescent (ACTFEL) devices is given by a model of an optical microscopic cavity, and the optimization of the structure of the ACTFEL device is discussed.

The model is reasonable since the radiation patterns developed by it coincide with the experimental by: 1. Having long life, high brightness, light weight, superior viewing angle characteristics, and being the only fully solid state display, alternating-current thin-film electroluminescent (ACTFEL) devices are now available for numerous applications and compete successfully with other types of passive and active devices on the display market.

The internal mechanism of the electro-luminescence and Cited by: Modeling Space Charge in Alternating -Current Thin-Film Electroluminescent Devices Using a Single-Sheet Charge Model [P. Keir] on *FREE* shipping on qualifying offers. Modeling Space Charge in Alternating -Current Thin-Film Electroluminescent Devices Using a Single-Sheet Charge ModelAuthor: P.

Keir. A simulation of alternating‐current thin‐film electroluminescent device operation with positive space charge present in the phosphor layer of the device is presented. The simulation is based on modeling the space‐charge distribution using a single‐sheet charge model.

The simulation is performed for two cases of space‐charge creation: by impact ionization of deep levels in the Cited by: 9. Electroluminescent (EL) devices operating at alternating current (AC) electricity have been of great interest due to not only their unique light emitting mechanism of carrier generation and recombination but also their great potential for applications in displays, sensors, and lighting.

Despite great success of AC–EL devices, most device properties are far from real implementation. Recently, blue, red and green emitting thin film electroluminescent materials have been developed that offer the potential for long life and full color electroluminescent displays.

In either case, the EL material must be enclosed between two electrodes and at least one electrode must be transparent to allow the escape of the produced light. Device structure was proposed earlier by Russ and Kennedy. Mito et al. showed that thin-film EL panels could be used as a TV imaging system.

Uede, Takeda and their coworkers reported on the production of practical ZnS:Mn ac thin-film EL display units. Sharp introduces the first commercial ZnS:Mn ac thin-film monochrome display. alternating current thin film electroluminescence (ACTFEL) technology.1 It has been on the market for about 25 years but mainly as monochrome products, which has limited its use to niche areas in the medical, industrial, military and transportation sectors.

1 ACited by: 2. The Luxprint Electroluminescent Inks for this activity were donated by DuPont. AC electroluminescence from organic thin film electroluminescent (OTFEL) devices based on polymer poly(p- phenylene-vinylene) and molecular compound tris(8- hydroxyquinoline) aluminum (Alq 3)was emission spectra of these devices driven by ac were : Fengling Zhang, Zheng Xu, Zhimin Yang, Li Sun, Yanbing Hou, Yongsheng Wang, Xurong Xu, Zonghao Huang.

Humidity sensors are indispensable for various electronic systems and instrumentations. To develop a new humidity sensing mechanism is the key for the next generation of sensor technology.

In this work, a novel flexible paper-based current humidity sensor is proposed. The developed alternating current electroluminescent devices (ACEL) consist of the electroless plating Ni on filter paper and Author: Yaqin He, Mengyao Zhang, Nan Zhang, Danrong Zhu, Chun Huang, Ling Kang, Xiaofeng Zhou, Menghan Hu, J.

LEE et al.: WHITE-LIGHT EMITTING THIN-FILM ELECTROLUMINESCENT DEVICE 41 (a) (b) (c) (d) Fig. Surface roughness measured by atomic force microscopy of (a) unetched Si and (b) micromachined Si mirrors. SEM photograph of (c) the top of the EL structure formed on (a), and (d) the EL structure formed on (b).

from Region 1 in ELD 2. THIN fILM ELECTROLUMINEScENCE By Ian Mackay Athesis submitted in partial fulfillment of the requirement for the degree of: MASTER OF SCIENCE in MATERIALS SCIENCE AND ENGINEERING. Bhattacharyya, S.M. Goodnick, and J.F. Wager, “Monte-Carlo Simulation of High-Field Electron Transport in Alternating-Current Thin-Film Electroluminescent Devices,” presented at the Sixth International Workshop on Electroluminescence, El Paso, TX, May Published in.

The advent of electroluminescent (EL) fibers, which emit light in response to an applied electric field, has opened the door for fabric-integrated light emission and displays in textiles. However, there have been few technical publications over the past few years about the performance of these light emitting fibers inside functional fabrics.

Thus, there is limited information on the effect of Author: Alyssa Martin, Adam Fontecchio. SPIE Digital Library Proceedings. Proc. SPIEPhotonics, Devices, and Systems III, (18 April ); doi: / The book focuses on luminescent nanoparticles in organic and inorganic dielectric matrixes, specifically in porous alumina films, as these are most relevant due to With a particular emphasis on experimental and theoretical studies of the synthesis processes, the book informs readers about these nanostructures through rigorous investigation of.

Carrier distribution in TMDC thin film transistors under an external electric field: 9p H. Matsuoka: Angle dependent Pauli-paramagnetic limit in ultra-thin NbSe 2: 9p Y.

Morita: Superconductivity in Bilayer Graphene/hBN Superlattices II – More on Experiments and Possible Scenarios – .Zinc germanate has been evaluated as a potential phosphor in alternating current thin film electroluminescent displays (ACTFEL) [22,]. In this phosphor, Ge atoms substitute for the Si atoms from Zn2SiO4.

The resulting composition, Zn2GeO4, leads to a lower crystallization temperature and a smaller bandgap. Crystallization temperatures as.Surprisingly, in response to the THz excitation, we observe QD luminescence even in the absence of an external charge source.

Our experiments show that QD luminescence is associated with a remarkably high and rapid modulation of the QD bandgap, which changes by more than eV (corresponding to 25% of the unperturbed bandgap energy).Cited by: