Results 41 to 50 of about 4,601,669 (267)

Remote temperature mapping of high-power InGaN/GaN MQW flip-chip design LEDs [PDF]

, 2005
We report on the study of heat 2D-distribution in InGaN LEDs with the stress made on local device overheating and temperature gradients inside the structure.
Zakheіm А. L., Malyutenko O. Y., Zinovchuk A. V., Malyutenko V. K.   +3 more
core   +1 more source

Research progress of optoelectronic devices based on diamond materials

Frontiers in Physics, 2023
Diamond has a variety of unique characteristics, including integrates mechanics, electricity, heat, optics and other excellent properties, so that it is widely focus on the field of high and new technology, especially in the optoelectronic technology ...
Houzhi Fei, Dandan Sang, Dandan Sang, Liangrui Zou, Shunhao Ge, Yu Yao, Jianchao Fan, Cong Wang, Qinglin Wang, Qinglin Wang   +9 more
doaj   +1 more source

Dendrimer light-emitting diodes [PDF]

, 2008
The electronics industry today is one that stands as a multi-billion dollar industry that is increasingly incorporating more and more products that have ever escalating applications in our everyday life.
Stevenson, Stuart G.
core   +1 more source

Recent advances in light outcoupling from white organic light-emitting diodes [PDF]

, 2015
M.C.G. is grateful to the Scottish Funding Council (via SUPA) for financial support.Organic light-emitting diodes (OLEDs) have been successfully introduced to the smartphone display market and have geared up to become contenders for applications in ...
Gather, M.C., Reineke, S.
core   +1 more source

Nanofabrication of gallium nitride photonic crystal light-emitting diodes [PDF]

, 2010
We describe a comparison of nanofabrication technologies for the fabrication of 2D photonic crystal structures on GaN/InGaN blue LEDs. Such devices exhibit enhanced brightness and the possibility of controlling the angular emission profile of emitted ...
Rahman, Faiz, Rahman, F., De La Rue, Richard M., Parsons, K., Z. Khokhar, Ali, J. Abbott, Steve, D. Dawson, Martin, P. Johnson, Nigel, Abbott, Steve J., Watson, I.M., Charlton, Martin D.B., MacIntyre, D.S., Watson, I.A., MacIntyre, Douglas S., Xiong, C., Charlton, Martin, Johnson, N.P., Hubbard, G., De La Rue, R.M., Gong, Zheng, M. De La Rue, Richard, Charlton, M.D.B., Gu, E., Johnson, Nigel P, Abbott, S.J., S. Macintyre, Douglas, M. Watson, Ian, Macintyre, Douglas S, Tillin, Martin, Johnson, Nigel P., Massoubre, D., Rue, Richard M. De La, Xiong, Chang, Khokhar, A.Z., Watson, Ian M., Gu, Erdan, D.B. Charlton, Martin, Hubbard, Graham, Dawson, M.D., Gong, Z., Tillin, M., Massoubre, David, Khokhar, A.Z, Khokhar, Ali Z., Dawson, Martin D., Parsons, Keith, Charlton, M.D.B   +46 more
core   +2 more sources

Proposal for Deep-UV Emission from a Near-Infrared AlN/GaN-Based Quantum Cascade Device Using Multiple Photon Up-Conversion

Crystals, 2023
We propose the use of an n-doped periodic AlN/GaN quantum cascade structure for the optical up-conversion of multiple near-infrared (near-IR) photons into deep-ultraviolet (deep-UV) radiation.
Daniel Hofstetter, David P. Bour, Hans Beck   +2 more
doaj   +1 more source

Transparent electrode design for AlGaN deep-ultraviolet light-emitting diodes

Optics Express, 2017
Zinc gallate (ZnGa2O4; ZGO) thin films were employed as the p-type transparent contact layer in deep-ultraviolet AlGaN-based light-emitting diodes (LEDs) to increase light output power. The transmittance of 200-nm-thick ZGO in deep-ultraviolet wavelength (280 nm) was as high as 92.3%.
Ray- Hua Hrong, Yu-Yuan Zeng, Wei-Kai Wang, Chia-Lung Tsai, Yi-Keng Fu, Wei-Hung Kuo   +5 more
openaire   +2 more sources

Carrier Transport in a Deep Ultraviolet Mixed Quantum Well Light Emitting Diode

IEEE Photonics Journal
Aluminium Gallium Nitride (AlGaN) based light emitting diodes (LED) are the enabling technology for compact emitters of deep ultraviolet (DUV) radiation and are in high demand for environmental and medical applications.
Friedhard Romer, Gregor Hofmann, Jakob Hopfner, Marcel Schilling, Anton Muhin, Tim Wernicke, Michael Kneissl, Bernd Witzigmann   +7 more
doaj   +1 more source

Usefulness of a new DUV-LED device for the control of infection by Escherichia coli, Staphylococcus aureus, mycobacteria and spore-forming bacteria

Frontiers in Public Health, 2022
Reliable disinfection and sterilization technologies are needed to deal with the various infectious diseases spreading around the world. Furthermore, bacteria that are difficult to eliminate by ordinary disinfection are also a problem in the medical ...
Hiroko Inagaki, Yoshitaka Goto, Hironobu Sugiyama, Hironobu Sugiyama, Akatsuki Saito, Akatsuki Saito, Tamaki Okabayashi, Tamaki Okabayashi, Kyosuke Watanabe, Shouichi Fujimoto   +9 more
doaj   +1 more source

Photothermal detection of trace optical absorption in water by use of visible-light-emitting diodes [PDF]

, 1998
Visible light emitting diodes of three different colors have been used to detect an absorbing compound (potassiumpermanganate) in trace quantities in aqueous solution.
Johnson, Mark, Hodgkinson, Jane, Dakin, John P.   +2 more
core   +1 more source