Results 11 to 20 of about 23,878 (272)

Anomalously bright single-molecule upconversion electroluminescence

Nature Communications
Efficient upconversion electroluminescence is highly desirable for a broad range of optoelectronic applications, yet to date, it has been reported only for ensemble systems, while the upconversion electroluminescence efficiency remains very low for ...
Yang Luo, Fan-Fang Kong, Xiao-Jun Tian, Yun-Jie Yu, Shi-Hao Jing, Chao Zhang, Gong Chen, Yang Zhang, Yao Zhang, Xiao-Guang Li, Zhen-Yu Zhang, Zhen-Chao Dong   +11 more
doaj   +2 more sources

Ground State Electroluminescence [PDF]

Physical Review Letters, 2016
Electroluminescence, the emission of light in the presence of an electric current, provides information on the allowed electronic transitions of a given system. It is commonly used to investigate the physics of strongly-coupled light-matter systems, whose eigenfrequencies are split by the strong coupling with the photonic field of a cavity.
Cirio, Mauro, De Liberato, Simone, Lambert, Neill, Nori, Franco   +3 more
openaire   +6 more sources

Beyond Radical Emitters: Hot-Exciton Electroluminescence From Singlet Diradicaloids. [PDF]

Angew Chem Int Ed Engl
The first hot‐exciton mechanism in a singlet diradicaloid is demonstrated in a polychlorinated Thiele hydrocarbon‐based organic light‐emitting transistor. Reverse intersystem crossing involving the T2 and bright singly excited states enables electroluminescence beyond the 25% spin‐statistical limit, leading to remarkable external quantum efficiency ...
Prosa M, Lunedei E, Orza M, Mesto D, Cantoni R, Reginato F, Punzi A, Barreto ARJ, Dai Y, Carlotti B, Negri F, Toffanin S, Blasi D.   +12 more
europepmc   +3 more sources

High-Brightness and Ultra-Long-Lifetime Spin Quantum Dot Light-Emitting Diodes Enabled by Efficient Injection of Spin-Polarized Holes Through a Hybrid Hole Transport Layer. [PDF]

Adv Sci (Weinh)
This work employs a hybrid hole transport layer to enhance hole transport efficiency, resulting in improved performance for the final device. It achieves an external quantum efficiency of 6.68%, a circularly polarized electroluminescence asymmetry factor of 0.026, and a high luminance of 14,370 cd/cm2, representing the highest luminance reported to ...
Qiu F, Zhang H, Liu W, Zhong G, Lu F, Wang Y, Ai F, Wang K, Wu D.   +8 more
europepmc   +2 more sources

Cavity-Compatible Light Extraction in Top-Emitting Microcavity OLEDs via a Gentle Internal Corrugation Layer and Resonance-Matched Narrowband Emission. [PDF]

Adv Sci (Weinh)
A gentle internal corrugation layer conformally reshapes the microcavity OLED stack, redistributing confined optical power toward extractable channels while preserving cavity‐controlled emission. Combined with optical clear resin and a resonance‐matched narrowband pTSF emissive system, this cavity‐compatible architecture delivers an external quantum ...
Kim YR, Nimbalkar A, Suh MC.
europepmc   +2 more sources

Highly luminescent colloidal CdS quantum dots with efficient near-infrared electroluminescence in light-emitting diodes [PDF]

, 2016
We acknowledge financial support from FP7 project “Laser Induced Synthesis of Polymeric Nanocomposite Materials and Development of Micro-Patterned Hybrid Light Emitting Diodes (LED) and Transistors (LET)”-LAMP (Project G.A.247928). A.K.B.
Zhang, S., LANZI, MASSIMILIANO, Samuel, I. D. W., Antolini, F, Lanzi, M, Samuel, Ifor David William, Bansal, Ashu Kumar, Orlotani, L, Serra, E., Bansal, A. K., ANTOLINI, FRANCESCO, Serra, E, STROEA, LENUTA, Allard, S, Stroea, L, ORTOLANI, LUCA, Scherf, U, Zhang, Shuyu, Scherf, U., Allard, S., Allard S, Bansal A K, Zhang S, Antolini, F., Ortolani L, Scherf U, Antolini F, Stroea L, Serra E, Samuel I D W, Lanzi M, Samuel, Ifor David William; id_orcid   +31 more
core   +1 more source

Electroluminescence data (Fig 2a)

, 2023
Electroluminescence data (Fig 2a)
Gustavo F. Trindade (17304478)
core   +1 more source

Enhanced Electroluminescence Based on a π-Conjugated Heptazine Derivative by Exploiting Thermally Activated Delayed Fluorescence

Frontiers in Chemistry, 2021
Heptazine derivatives have attracted much attention over the past decade by virtue of intriguing optical, photocatalytic as well as electronic properties in the fields of hydrogen evolution, organic optoelectronic technologies and so forth.
Jie Li, Heqi Gong, Jincheng Zhang, Shiyi Zhou, Li Tao, Lihua Jiang, Qiang Guo   +6 more
doaj   +1 more source

Reconsidering electroluminescence cooling of a heated diode

, 2023
Electroluminescence cooling of a heated infrared-emitting diode has been claimed [P. Santhanam, D. J. Gray, Jr., and R. J. Ram, Phys. Rev. Lett. 108, 097403 (2012)].
Alexander P Kirk
core   +1 more source

SPECTRAL CHARACTERISTICS OF MID-INFRARED LIGHT-EMITTING DIODES BASED ON InAs (Sb,P) [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2016
Subject of Study. We consider spectral characteristics of mid-infrared light-emitting diodes with heterostructures based on InAs(Sb,P) emitting at T=300 K in the wavelength range 3.4–4.1 micrometers.
N. K. Zhumashev, K. D. Munbaev, N. L. Bazhenov, N. D. Stoyanov, S. S. Kizhaev, T. I. Gurina, A. P. Astakhova, A. V. Tchernyaev, S. S. Molchanov, K. M. Salikhov, V. E. Bougrov, H. Lipsanen   +11 more
doaj   +1 more source