Results 21 to 30 of about 8,746,494 (343)

Interdigital Structure Enhanced the Current Spreading and Light Output Power of GaN-Based Light Emitting Diodes

IEEE Access, 2020
In this manuscript, blue light emitting diodes (LEDs) with comb-shaped mesa and interdigital electrodes structure based on gallium nitride (GaN) are presented.
Jie Ding, Lingjuan Che, Xiao Chen, Tao Zhang, Yongdan Huang, Zengli Huang, Zhongming Zeng, Hulin Zhang, Sunan Ding, Hui Yang   +9 more
doaj   +1 more source

Utilization Of Periodic Nanostructures To Improve Detection Efficiency And Time/Energy Resolution Of Inorganic Scintillators [PDF]

EPJ Web of Conferences
Inorganic scintillators are commonly used in various radiation detection applications due to their excellent energy resolution, reliable performance, relatively low cost, and high detection efficiency.
Surani Stuti, Samulyak Roman, Scurti Federico, Wolfe Douglas E., Flaska Marek   +4 more
doaj   +1 more source

Influence of Thin Fluorine Resin Film on DUV LED Packaging Devices

Applied Sciences, 2023
Amorphous fluorine resin is a promising material that can be used for the encapsulation of deep-ultraviolet light-emitting diodes (DUV LEDs) to promote the light output, due to its light characteristics which mean it shows no absorption in the DUV ...
Wenbo Li, Leming Tang, Yong Yang, Zhicong Zhang, Guanghui Li, Meixin Feng, Qiming Xu, Qian Sun   +7 more
doaj   +1 more source

Radiation resistant plastic scintillator with 4,4′-di-tert-butylbiphenyl [PDF]

Ядерна фізика та енергетика
The article considers the possibility of creating a radiation-resistant plastic scintillator based on polystyrene using a dialkyl derivative of biphenyl – 4,4′-di-tert-butylbiphenyl.
O. V. Yelisieieva, D. A. Yelisieiev, Yu. О. Нurkalenko, P. М. Zhmurin, V. D. Alekseev   +4 more
doaj   +1 more source

Changes of lighting characteristics of semiconductor light sources of different constructional performance during operation

Vestnik MGTU, 2019
Lighting using LED technology is used for domestic purposes, as well as in various sectors of the economy. In the process of studying low-power LED lamps with a power of 9, 10, 12W (various manufacturers), differing in their design and used as a ...
Kovalenko O. Yu., Zhuravleva J. A., Mikaeva S. A., Nemov V. V.   +3 more
doaj   +1 more source

Light output performance of red AlGaInP-based light emitting diodes with different chip geometries and structures.

Optics Express, 2018
We investigated the optical and electrical properties of red AlGaInP light-emitting diodes (LEDs) as functions of chip size, p-cladding layer thickness, and the number of multi-quantum wells (MQWs).
J. Oh, Sangyoul Lee, Y. Moon, Jihyung Moon, Sunwoo Park, Ki Yong Hong, K. Song, Chan-Hyoung Oh, J. Shim, H. Jeong, June O. Song, H. Amano, T. Seong   +12 more
semanticscholar   +1 more source

Point‐LIO: Robust High‐Bandwidth Light Detection and Ranging Inertial Odometry

Advanced Intelligent Systems, 2023
Herein, point light detection and ranging inertial odometry (LIO) is presented: a robust and high‐bandwidth light detection and ranging (LiDAR) inertial odometry with the capability to estimate extremely aggressive robotic motions.
Dongjiao He, Wei Xu, Nan Chen, Fanze Kong, Chongjian Yuan, Fu Zhang   +5 more
semanticscholar   +1 more source

End-emitting nano organic light emitting diodes (OLEDs) with directional output

Nanophotonics, 2020
We report a new strategy for the design of organic light emitting diodes (OLEDs), where nanoscale OLEDs are fabricated into a large-area periodic array with their emission propagating along the active layer and being coupled out through the end facets. A
Huang Cuiying, Zhang Yiwei, Zhang Xinping   +2 more
doaj   +1 more source

A switching control method based on a new model considering parasitic capacitance for LLC

Frontiers in Energy Research, 2023
LLC converters are used for linking renewable energy and smart grids. However, the output is higher than the reference caused by its own characteristics, especially in the light load, and the output is limited.
Yetong Han, Dazhong Ma, Qingpeng An
doaj   +1 more source

Effects of Infection Control Barriers on Light Output from a Dental Light-Curing Unit Used in Various Positions

Oral, 2023
Light-curing units (LCUs) are often subject to clinician-determined factors such as infection control barriers (ICBs) and different positionings of the light tip that may reduce their radiant exposure.
Jitte van der Zee, Andrew Tawse-Smith, Sunyoung Ma   +2 more
doaj   +1 more source