Results 31 to 40 of about 23,878 (272)

Terahertz Spectroscopy of Thermal Radiation from AlGaN/GaN Heterostructure on Sapphire at Low Temperatures

Applied Sciences, 2020
Terahertz spectroscopy of thermal radiation from electrically pumped AlGaN/GaN structures on sapphire substrate was investigated in this work. Comparison of experimental THz spectroscopy results to theoretical spectra calculations shows that thermal ...
Ignas Grigelionis, Irmantas Kašalynas
doaj   +1 more source

Electroluminescence property improvement by adjusting quantum wells’ position relative to p-doped region in InGaN/GaN multiple-quantum-well light emitting diodes

AIP Advances, 2017
The hole distribution and electroluminescence property improvement by adjusting the relative position between quantum wells and p-doped region in InGaN/GaN multiple-quantum-well structures are experimentally and theoretically investigated.
P. Chen, D. G. Zhao, D. S. Jiang, H. Long, M. Li, J. Yang, J. J. Zhu, Z. S. Liu, X. J. Li, W. Liu, X. Li, F. Liang, J. P. Liu, B. S. Zhang, H. Yang   +14 more
doaj   +1 more source

Electrically Driven MOF-Based Blue to Yellow-White Tunable Light Emitting Diodes

IEEE Access, 2020
In this study, the Gadolinium metal based organic framework (Gd-MOF) is synthesized using the hydrothermal route. The as-synthesized material is dissolved in solvent and used to fabricate organic light emitting diodes (OLEDs) in the device structure ITO ...
Fuh-Shyang Juang, Meng-Qi Yao, Tuhina Mondal, Shyamal K. Saha   +3 more
doaj   +1 more source

Circularly Polarized Electroluminescence and Spin‐Polarized Carrier Transport in Chiral‐Doped Polymer Films

Advanced Functional Materials, EarlyView.
Chiral dopants induce supramolecular chirality in an achiral polymer (PFO), generating spin‐polarized carriers via the chiral‐induced spin selectivity (CISS) and suggesting a possible contribution of Spin‐polarized carrier transport to circularly polarized electroluminescence (CPEL).
Kazuyuki Asahi, Masashi Hasegawa, Yuuya Nagata, Tamaki Nakano, Hiroyuki Nishikawa   +4 more
wiley   +1 more source

Fabrication of Li-Doped NiO Thin Films by Ultrasonic Spray Pyrolysis and Its Application in Light-Emitting Diodes

Nanomaterials, 2023
The fabrication of NiO films by different routes is important to extend and improve their applications as hole-transporting layers in organic and inorganic optoelectronic devices. Here, an automated ultrasonic pyrolysis spray method was used to fabricate
Víctor Hugo López-Lugo, Manuel García-Hipólito, Arturo Rodríguez-Gómez, Juan Carlos Alonso-Huitrón   +3 more
doaj   +1 more source

Electroluminescence decay from exciton dissociation in MEH-PPV-CdSe layers

Entropie
This present work reports the effect of nanoparticle concentration on the electroluminescence decay from exciton dissociation in organic-inorganic layers.
Nouha Mastour, Said Ridene
doaj   +1 more source

Trifluoromethyl Substituted Derivatives of Pyrazoles as Materials for Photovoltaic and Electroluminescent Applications

Crystals, 2022
New 6-CF3-1H-pyrazolo[3,4-b]quinolines with a methyl and/or phenyl group attached to the pyrazole core (Molx (x = 1, 2, 3, 4)) were synthesized and characterized in terms of their optoelectronic applications: photovoltaic and electroluminescence.
Monika Pokladko-Kowar, Ewa Gondek, Andrzej Danel, Tomasz Uchacz, Paweł Szlachcic, Katarzyna Wojtasik, Paweł Karasiński   +6 more
doaj   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

Advanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin, Stav Rahmany, Anat Shvets, Hadar Shema, Elad Gross, Ido Hadar, Lioz Etgar   +6 more
wiley   +1 more source

Electroluminescence from porous silicon

, 2022
The development of electroluminescence in porous silicon is reported.
Steiner, P., Lang, W., Kozlowski, F.
core   +1 more source

Reduced Graphene Oxide Inserted into PEDOT:PSS Layer to Enhance the Electrical Behaviour of Light-Emitting Diodes

Nanomaterials, 2021
In this study, poly(9-vinylcarbazole) (PVK)-based LEDs doped with reduced graphene oxide (rGO) and cadmium sulphide (CdS) nanocrystals were fabricated by spin-coating.
Fernando Rodríguez-Mas, Juan Carlos Ferrer, José Luis Alonso, Susana Fernández de Ávila, David Valiente   +4 more
doaj   +1 more source