Results 91 to 100 of about 200,461 (334)

Blue light emitting diode internal and injection efficiency

open access: yesAIP Advances, 2012
A simple experimental method of light emitting diode (LED) injection efficiency (IE) determination was suggested. IE and internal quantum efficiency (IQE) calculation is an actual and difficult problem in LED science.
Ilya E. Titkov   +3 more
doaj   +1 more source

Epitaxial Interface‐Driven Photoresponse Enhancement in Monolayer WS2–MoS2 Lateral Heterostructures

open access: yesAdvanced Functional Materials, EarlyView.
Surface potential distribution image, along with the derived electric field distribution across the interface, reveals that the electric field reaches its peak at the interface. Additionally, the spectral response of the heterointerface exhibits higher and broader features compared to its bare counterparts.
Pargam Vashishtha   +18 more
wiley   +1 more source

Efficient Electrical Spin Injection from a Magnetic Metal / Tunnel Barrier Contact into a Semiconductor

open access: yes, 2002
We report electrical spin injection from a ferromagnetic metal contact into a semiconductor light emitting diode structure with an injection efficiency of 30% which persists to room temperature.
Hanbicki, Aubrey T.   +4 more
core   +1 more source

Low work function of the (1000) Ca2N surface [PDF]

open access: yes, 2004
Polymer diodes require cathodes that do not corrode the polymer but do have low work function to minimize the electron injection barrier. First-principles calculations demonstrate that the work function of the (1000) surface of the compound Ca2N is half ...
G. A. de Wijs   +3 more
core   +4 more sources

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Transfer or delivery of micro light-emitting diodes for light-emitting diode displays

open access: yesAIP Advances, 2019
As the next-generation display technology, microscale light-emitting diode (μ-LED) displays have attracted significant attention recently. For applying μ-LEDs as direct emissive pixels in everyday display applications, many chips in a relatively small ...
Jaehee Cho, Jong Kyu Kim
doaj   +1 more source

Light-Emitting Diode Photobiomodulation After Cerebral Ischemia

open access: yesFrontiers in Neurology, 2019
Photobiomodulation (PBM) therapy is a promising therapeutic approach for several pathologies, including stroke. The biological effects of PBM for the treatment of cerebral ischemia have previously been explored as a neuroprotective strategy using ...
Bárbara Argibay   +13 more
doaj   +1 more source

Device Integration Technology for Practical Flexible Electronics Systems

open access: yesAdvanced Functional Materials, EarlyView.
Flexible device integration technologies are essential for realizing practical flexible electronic systems. In this review paper, wiring and bonding techniques critical for the industrial‐scale manufacturing of wearable devices are emphasized based on flexible electronics.
Masahito Takakuwa   +5 more
wiley   +1 more source

Magnetoresistance in organic light-emitting diode structures under illumination [PDF]

open access: yes, 2007
Copyright 2007 by the American Physical Society. Article is available at
Desai, P   +3 more
core   +1 more source

A next-generation light-emitting device: ZOGAN LED with a heterogeneous p-layer composed of oxide and nitride semiconductors

open access: yesAIP Advances
We have developed a light-emitting device, called the ZOGAN light-emitting diode (LED). The ZOGAN LED is formed with the p-layer composed of both ZnO-based oxide and GaN-based nitride semiconductors.
Yung Ryel Ryu   +7 more
doaj   +1 more source

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