Zobrazeno 1 - 10
of 270
pro vyhledávání: '"Light and power"'
Publikováno v:
Nature Environment and Pollution Technology, Vol 22, Iss 2, Pp 879-886 (2023)
Environmental sustainability encompasses various problems, including clean air, renewable energy, climate change, safe environments, and the capacity to live in a healthy community. One possible strategy for addressing these global problems is the ci
Externí odkaz:
https://doaj.org/article/4103417fb86147659ef6c61ad568e5bb
Autor:
Chaozhi Xu, Lie Cai, Jinjian Zheng, Haoxiang Lin, Zhichao Chen, Kai Niu, Zaijun Cheng, Feibing Xiong
Publikováno v:
Results in Physics, Vol 55, Iss , Pp 107111- (2023)
In this paper, a near-ultraviolet LED structure was fabricated on a sapphire substrate by using metal–organic chemical vapor deposition with an undoped AlGaN insertion layer introduced between multiple quantum wells and electron blocking layers, an
Externí odkaz:
https://doaj.org/article/b882b9411ebc4193a4a24f7f6545af37
Akademický článek
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Akademický článek
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Publikováno v:
IEEE Access, Vol 10, Pp 95565-95570 (2022)
The low luminous efficiency of indium gallium nitride (InGaN) light-emitting diodes (LED) in the “green gap” range has been a long unsettled issue confounding the researchers. One of the main obstacles comes from the intrinsic polarization field
Externí odkaz:
https://doaj.org/article/8eb7d86b4a4b48dabe467a2abf379f01
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
The internal quantum efficiency (IQE) of conventional AlGaN-based deep-ultraviolet (DUV) light-emitting diodes (LEDs) is seriously limited by the poor and inhomogeneous carrier injection. The typical solution is to optimize the structure parameters o
Externí odkaz:
https://doaj.org/article/e3e5252eaaec49c38701d86d2b4dc93b
Autor:
Md Sahar, Mohd Ann Amirul Zulffiqal, Hassan, Zainuriah, Ng, Sha Shiong, Lim, Way Foong, Lau, Khai Shenn, Alias, Ezzah Azimah, Ahmad, Mohd Anas, Hamzah, Nur Atiqah, Mohd Asri, Rahil Izzati
Publikováno v:
Microelectronics International, 2021, Vol. 38, Issue 3, pp. 119-126.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/MI-02-2021-0017
Autor:
Wenbo Li, Leming Tang, Yong Yang, Zhicong Zhang, Guanghui Li, Meixin Feng, Qiming Xu, Qian Sun
Publikováno v:
Applied Sciences, Vol 13, Iss 11, p 6536 (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 wa
Externí odkaz:
https://doaj.org/article/e54189a54d39476bb769d71be5c00ea6
Autor:
Tsung-Yen Liu, Shih-Ming Huang, Mu-Jen Lai, Rui-Sen Liu, Yi-Tsung Chang, Wen-Hong Sun, Ray-Ming Lin
Publikováno v:
IEEE Access, Vol 9, Pp 129874-129880 (2021)
In this paper we report epoxy molding compound lead frames (EMC-LFs) with encapsulated silicone as a simple and inexpensive packaging for AlGaN-based ultraviolet-B (UVB) light-emitting diodes (LEDs) displaying high light extracting efficiencies (LEE)
Externí odkaz:
https://doaj.org/article/4b49d4f0c31f45cf92ae9aad4b64c487
Autor:
Jie Ding, Lingjuan Che, Xiao Chen, Tao Zhang, Yongdan Huang, Zengli Huang, Zhongming Zeng, Hulin Zhang, Sunan Ding, Hui Yang
Publikováno v:
IEEE Access, Vol 8, Pp 105972-105979 (2020)
In this manuscript, blue light emitting diodes (LEDs) with comb-shaped mesa and interdigital electrodes structure based on gallium nitride (GaN) are presented. This kind of LEDs have showed higher light output power and more efficient current spreadi
Externí odkaz:
https://doaj.org/article/9c668baed41e467aa064fa7295202402