Zobrazeno 1 - 10
of 191
pro vyhledávání: '"WEI-CHIH CHENG"'
Autor:
Hong-Wei Huang, Chien-Wei Huang, Yi-Chian Chen, Hsing-Kun Shih, Wei-Chih Cheng, Chun-Nien Liu, Chia-Chin Chiang
Publikováno v:
Micromachines, Vol 15, Iss 8, p 946 (2024)
A novel five-surface phosphor-in-glass (FS-PiG) structure for high illumination and excellent color uniformity in large-view scale LEDs for sensor light source application is demonstrated. YAG phosphor (Y3Al5O12:Ce3+) was uniformly mixed with ceramic
Externí odkaz:
https://doaj.org/article/118fecea64134cb3b3192c16f7ba1075
Autor:
Chun-Nien Liu, Kai-Chieh Chang, Chia-Ling Tsai, Wei-Chih Cheng, Tien-Tsorng Shih, Sheng-Lung Huang, Wood-Hi Cheng
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 3, Pp 1-6 (2023)
A record net gain of 17-dB has been demonstrated in a 300-nm broadband single-mode Cr-doped crystalline core fiber (CCF) with a 19-μm core diameter and 18-cm fiber length. The gain-per-unit-length of the CCF, which is an impressive 94 dB/m, is signi
Externí odkaz:
https://doaj.org/article/95bb7808efaa4218a1b73c96779515b3
Publikováno v:
IEEE Photonics Journal, Vol 13, Iss 3, Pp 1-10 (2021)
High color rendering index (CRI) of 97 and wide correlated-color temperatures (CCTs) range of 2100–7600 K in white light-emitting diodes (WLEDs) employing the two-inch diameter of CaAlSiN3: Eu2+ (red phosphor) and Lu3Al5O12: Ce3+ (green phosphor) c
Externí odkaz:
https://doaj.org/article/5066b49d6d38448e8edc977db15069eb
Autor:
Chun-Nien Liu, Jhuo-Wei Li, Yung-Hsiang Tung, Chun-Chuen Yang, Wei-Chih Cheng, Sheng-Lung Huang, Wood-Hi Cheng
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 2, Pp 1-11 (2020)
Tetrahedral chromium (Cr4+)-ions is the main contributor to gain in the broadband single-mode Cr-doped crystalline core fibers (SCCFs). We have demonstrated a gross gain of 8-dB on a length of 27-cm for a 300-nm broadband SCCF using a thermal anneali
Externí odkaz:
https://doaj.org/article/ad62e797c8534533921c04de9d968802
Publikováno v:
IEEE Journal of the Electron Devices Society, Vol 8, Pp 1138-1144 (2020)
Recess processes for the fabrication of normally-off GaN HEMTs generally compromise devices' on-state performance. In this work, recess-free quasi-normally-off GaN HEMTs with a threshold voltage of 0.24 V is realized by local control of two-dimension
Externí odkaz:
https://doaj.org/article/d7d5888297a048ab8bd37fca6bba9512
A high reliability and luminance of color wheel in laser light engine (LLE) employing novel phosphor-in-inorganic silicone (PiIS) fabricated at low temperature of 180°C for laser projector applications is presented and demonstrated for the first tim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c4199002e57fe44c0f189868af7026d
https://doi.org/10.1364/opticaopen.22291081
https://doi.org/10.1364/opticaopen.22291081
Autor:
Kai-Chieh Chang, Chia-Ling Tsai, Wei-Chih Cheng, null Zon, Chun-Nien Liu, Tien-Tsorng Shih, Sheng-Lung Huang, Charles W. Tu, Wood-Hi Cheng
Publikováno v:
Optical Fiber Communication Conference (OFC) 2023.
We demonstrate record gain of 18-dB broadband single-mode Cr-doped crystalline core fiber employing small core diameter. The gain-per-unit-length is 90 dB/m, which is higher than currently achieved Er and Bi-doped fibers of 0.6 - 3 dB/m.
Publikováno v:
IEEE Photonics Technology Letters. 33:1143-1146
We demonstrate co-doped phosphor-in-glass (PiG) for high performance white light-emitting diodes (WLEDs) employing reduction of red/green phosphors interaction and antireflection coating (ARC). In this study, the novelties are a suitable selection of
Autor:
Lingli Jiang, Hongyu Yu, Minghao He, Kah-Wee Ang, Fanming Zeng, Wei-Chih Cheng, Qing Wang, Yang Jiang, Wenmao Li, Zepeng Qiao, Yu-Chieh Chien
Publikováno v:
IEEE Transactions on Electron Devices. 68:3314-3319
In this article, a $\beta $ -Ga2O3 metal-interlayer-semiconductor Schottky barrier diode (MIS-SBD) using Al-reacted aluminum oxide as the interlayer is demonstrated for the first time and compared with conventional metal-semiconductor (MS) Schottky b
Autor:
Yin-Yi Han, Jann-Tay Wang, Wei-Chih Cheng, Ko-Lun Chen, Yi Chi, Lee-Jene Teng, Juen-Kai Wang, Yuh-Lin Wang
Background As effective management of sepsis requires timely administration of appropriate antibiotics, a reliable and rapid antimicrobial susceptibility testing (AST) is crucial. To meet clinical needs, we developed a novel AST, referred to as SERS-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0f4a44abdc0bb5a9cdd58997c7b1db7
https://doi.org/10.21203/rs.3.rs-1782865/v1
https://doi.org/10.21203/rs.3.rs-1782865/v1