Results 1 to 10 of about 33,807 (161)
Bacterial Hybrid Light-Emitting Diodes. [PDF]
AbstractPhoton down‐converting filters with fluorescent proteins (FPs) are a new frontier in the quest for rare‐earth‐free and non‐toxic color filters for white light‐emitting diodes. There are, however, concerns related to the FP purification costs and lack of FP recyclability/reuse.
Ferrara S +3 more
europepmc +3 more sources
A Review of Light-Emitting Diodes and Ultraviolet Light-Emitting Diodes and Their Applications
This paper presents an extensive literature review on Light-Emitting Diode (LED) fundamentals and discusses the historical development of LEDs, focusing on the material selection, design employed, and modifications used in increasing the light output. It
Trailokya Bhattarai +2 more
doaj +2 more sources
Bidirectional light-emitting diode as a visible light source driven by alternating current
Gallium nitride-based light-emitting diodes have revolutionized the lighting market by becoming the most energy-efficient light sources. However, the power grid, in example electricity delivery system, is built based on alternating current, which raises ...
Mikołaj Żak +10 more
doaj +1 more source
Quantum-dot light-emitting diodes promise a new generation of high-performance and solution-processed electroluminescent light sources. Understanding the operational degradation mechanisms of quantum-dot light-emitting diodes is crucial for their ...
Siyu He +10 more
doaj +1 more source
Extracting the inherent ideality factor of a diode from electrical current–voltage characteristics
The ideality factor of a diode gives the information on the current conduction or recombination processes occurring inside the device. The ideality factor obtained from the electrical current–voltage (I–V) characteristics by the conventional method is ...
Jaehyeok Park +4 more
doaj +1 more source
Josephson Light-Emitting Diode [PDF]
We consider an optical quantum dot where an electron level and a hole level are coupled to respective superconducting leads. We find that electrons and holes recombine producing photons at discrete energies as well as a continuous tail. Further, the spectral lines directly probe the induced superconducting correlations on the dot.
Recher, P. (author) +2 more
openaire +4 more sources
Enhancing the Light Extraction Efficiency in Micro‐Organic Light‐Emitting Diodes with Metalens
Due to the total internal reflection caused by the mismatch of the refractive indices between organic layers and oxide layers within an organic light‐emitting diode (OLED), most of the light energy is trapped inside the device; if the size of an OLED is ...
Jingen Lin +6 more
doaj +1 more source
Critical role of electrons in the short lifetime of blue OLEDs
Designing robust blue organic light-emitting diodes is a long-standing challenge in the display industry. The highly energetic states of blue emitters cause various degradation paths, leading to collective luminance drops in a competitive manner. However,
Jaewook Kim +14 more
doaj +1 more source
Magnetoelectroluminescence in organic light-emitting diodes [PDF]
The magnetoelectroluminescence of conjugated organic polymer films is widely accepted to arise from a polaron pair mechanism, but their magnetoconductance is less well understood. Here we derive a new relationship between the experimentally measurable magnetoelectroluminescence and magnetoconductance and the theoretically calculable singlet yield of ...
Joseph E. Lawrence +3 more
openaire +5 more sources
Emergence of Nanoplatelet Light-Emitting Diodes [PDF]
Since 2014, nanoplatelet light-emitting diodes (NPL-LEDs) have been emerged as a new kind of LEDs. At first, NPL-LEDs are mainly realized by CdSe based NPLs. Since 2016, hybrid organic-inorganic perovskite NPLs are found to be effective to develop NPL-LEDs. In 2017, all-inorganic perovskite NPLs are also demonstrated for NPL-LEDs.
Xiao, Peng +6 more
openaire +3 more sources

