Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Jian Kai Liou"'
Autor:
Jung-Hui Tsai, Yi-Chun Chan, Wei-Cheng Chen, Chun Yen Chen, Wen-Chau Liu, Ching-Hong Chang, Jian-Kai Liou
Publikováno v:
IEEE Transactions on Electron Devices. 64:2854-2858
The Characteristics of GaN-based LEDs with hybrid microhole arrays and SiO2 microspheres (MSs)/ nanoparticles (NPs) are comprehensively studied. The SiO2 MSs/NPs antireflection coating, deposited by a rapid convection deposition, acts as a passivatio
Autor:
Chi-Shiang Hsu, Wen-Chau Liu, Wei-Cheng Chen, Jian-Kai Liou, Der-Feng Guo, Shiou-Ying Cheng, Sheng-Yi Chen, Chun Yen Chen, Ching-Hong Chang
Publikováno v:
IEEE Transactions on Electron Devices. 64:2542-2548
Characteristics of GaN-based light-emitting diodes (LEDs) with 1-D stripe (B-series) and 2-D grid (A-series) Ag metal line patterns are comprehensively studied and reported. Due to the enhanced current spreading capability, as compared to a conventio
Publikováno v:
Solid-State Electronics. 132:86-90
The effect of employing different carrier gases (H2 only and 1:1 vol% N2:H2) in the p-type GaN (p-GaN) layer on the wall-plug efficiency (WPE) of high-power light-emitting diodes (LEDs) is studied. Since GaN crystal could be a two-dimension (2-D) gro
Autor:
Shiou-Ying Cheng, Wei-Cheng Chen, Ching-Hong Chang, Der-Feng Guo, Yi-Chun Chan, Chi-Hsiang Hsu, Wen-Chau Liu, Jian-Kai Liou
Publikováno v:
IEEE Transactions on Electron Devices. 64:1134-1139
A hybrid SiO2 micro/nanospheres antireflection coating, deposited by a rapid convection deposition, acting as a passivation layer of GaN-based light-emitting diodes (LEDs) is studied in this paper. Since the critical angle could be enlarged by antire
Publikováno v:
IEEE Transactions on Electron Devices. 62:3296-3301
A high-power GaN-based light-emitting diode (LED) with an inductively coupled plasma (ICP)-transferred nanohemispherical hybrid backside reflector is studied. A self-assembled 100 ± 5 nm SiO2 nanosphere monolayer is drop-coated on the backside of a
Autor:
Wei-Cheng Chen, Cheng-Jing Lai, Po-Cheng Chou, Huey-Ing Chen, Chun-Chia Chen, I-Ping Liu, Jian-Kai Liou, Wen-Chau Liu
Publikováno v:
International Journal of Hydrogen Energy. 40:9006-9012
A new Pd/AlGaN/GaN Schottky diode-type hydrogen sensor with pyramid-like Pd nanostructures is fabricated and studied comprehensively. The employed pyramid-like Pd nanostructures cause the substantial increase of surface roughness and surface-to-volum
Autor:
Jian-Kai Liou, Wen-Chau Liu, Chun-Chia Chen, Po-Cheng Chou, Huey-Ing Chen, I-Ping Liu, Cheng-Jing Lai
Publikováno v:
IEEE Sensors Journal. 15:3759-3763
The interesting ZnO nanoparticles (NPs)-based sensor devices are fabricated on sapphire substrates to study the nitrogen oxide (NO2) gas sensing performance. The postheat treatment process is not used to avoid the undesired agglomeration phenomenon.
Autor:
Po-Cheng Chou, Huey-Ing Chen, I-Ping Liu, Kai-Siang Hsu, Chun-Chia Chen, Wen-Chau Liu, Jian-Kai Liou
Publikováno v:
IEEE Sensors Journal. 15:3711-3715
An interesting ammonia gas sensor based on a p-type NiO thin film, prepared by a radio frequency sputtering process, is studied and demonstrated. As compared with conventional n-type metal-oxide sensors, the studied device shows comparable and good s
Autor:
Yu Ting Tsai, I-Ping Liu, Po-Cheng Chou, Huey-Ing Chen, Wen-Chau Liu, Jian-Kai Liou, Chun-Chia Chen
Publikováno v:
Applied Surface Science. 341:120-126
A Pt/AlGaAs/InGaAs/GaAs heterostructure field-effect transistor (HFET), prepared by an electrophoretic deposition (EPD) approach on gate Schottky contact region, is fabricated and studied. The EPD-based Pt-gates with three different molar ratios (ω0
Autor:
Hao-Yeh Liu, I-Ping Liu, Chun-Chia Chen, Wen-Chau Liu, Po-Cheng Chou, Huey-Ing Chen, Jian-Kai Liou
Publikováno v:
Sensors and Actuators B: Chemical. 211:303-309
In this work, enhanced hydrogen sensing characteristics of a GaN-based Schottky diode-type sensor with a GaOx layer are studied and demonstrated. A thin GaOx layer inserted in Pd/GaN interface is oxidized by the immersion in an H2O2 solution at room