Results 21 to 30 of about 80,998 (291)

Improved InGaN/GaN light-emitting diodes with a p-GaN/n-GaN/p-GaN/n-GaN/p-GaN current-spreading layer

Optics Express, 2013
This work reports both experimental and theoretical studies on the InGaN/GaN light-emitting diodes (LEDs) with optical output power and external quantum efficiency (EQE) levels substantially enhanced by incorporating p-GaN/n-GaN/p-GaN/n-GaN/p-GaN (PNPNP-GaN) current spreading layers in p-GaN.
Zhang, Z.-H., Tan, S.T., Liu W., Ju, Z., Zheng, K., Kyaw, Z., Ji, Y., Hasanov, N., Sun X.W., Demir, H. V.   +9 more
openaire   +5 more sources

Structural Optimization of p-GaN Gate GaN-Based High Electron Mobility Transistors

Nantong Daxue xuebao. Ziran kexue ban, 2021
In order to simplify the complexity of circuit design and reduce the cost, normally-off high electron mobility transistors are more preferable in the industry. The device with p-GaN gate has drawn increasing attention in the industry. In order to improve
GE Mei; LI Yi; WANG Zhiliang; ZHU Youhua
doaj   +1 more source

Improved InGaN/GaN light-emitting diodes with a p-GaN/n-GaN/p-GaN/n-GaN/p-GaN current-spreading layer: errata

Optics Express, 2013
The errata consists of the correction to one typo of the reach-through breakdown voltage for each p-GaN/n-GaN/p-GaN junction [Opt. Express 21, 4958-4969 (2013)].
Zhang, Zi-Hui, Tan, Swee Tiam, Liu, Wei, Ju, Zhengang, Zheng, Ke, Kyaw, Zabu, Ji, Yun, Hasanov, Namig, Sun, Xiaowei, Demir, Hilmi Volkan   +9 more
openaire   +2 more sources

Transient surface photovoltage in n- and p-GaN as probed by x-ray photoelectron spectroscopy [PDF]

, 2011
Cataloged from PDF version of article.Transient surface photovoltage (SPV) of n and p-GaN was measured using x-ray photoelectron spectroscopy (XPS) with a time resolution of 0.1 s. The measured SPV transients for both n- and p-GaN are
Aktas, O., Ozbay, E., Sezen, H., Suzer, S.   +3 more
core   +1 more source

Plasmonic nanoparticle enhanced photocurrent in GaN/InGaN/GaN quantum well solar cells [PDF]

, 2010
We demonstrate enhanced external quantum efficiency and current-voltage characteristics due to scattering by 100 nm silver nanoparticles in a single 2.5 nm thick InGaN quantum well photovoltaic device.
Atwater, Harry A., Fischer, Arthur J., Koleske, Daniel D., Pryce, Imogen M.   +3 more
core   +1 more source

Study of Magnesium Activation Effect on Pinch-Off Voltage of Normally-Off p-GaN HEMTs for Power Applications

Crystals, 2023
The role of the magnesium (Mg) doping and its electrical activation on the off-state of p-GaN/AlGaN/GaN HEMTs has been investigated in this work. Firstly, the effect of different Mg doping profiles has been studied via the help of Technology Computer ...
Giovanni Giorgino, Giuseppe Greco, Maurizio Moschetti, Cristina Miccoli, Maria Eloisa Castagna, Cristina Tringali, Patrick Fiorenza, Fabrizio Roccaforte, Ferdinando Iucolano   +8 more
doaj   +1 more source

ZnO nanorod/GaN light-emitting diodes: The origin of yellow and violet emission bands under reverse and forward bias [PDF]

, 2011
ZnO nanorods have been prepared by electrodeposition under identical conditions on various p-GaN-based thin film structures. The devices exhibited lighting up under both forward and reverse biases, but the turn-on voltage and the emission color were ...
Chen, X, Djurišić, AB, Fang, F, Fei Lui, H, Gwo, S, Hang Ng, Y, Kin Chan, W, Lam Tam, H, Man Ching Ng, A, Surya, C, Wai Cheah, K, Wai Keung Fong, P   +11 more
core   +1 more source

Ohmic Contacts on p‐GaN

Advanced Electronic Materials, 2015
With the development of GaN‐based optoelectronic devices, the need for p‐GaN contacts with low resistivity, good thermal stability, and high transparency or reflectivity has become more pressing. Various contact schemes to satisfy these requirements have been investigated in the past two decades.
Jingli Chen, William D. Brewer
openaire   +1 more source

NIIN As an Ohmic Contact to P-GAN [PDF]

MRS Proceedings, 1998
AbstractBased on the criteria for the solid state exchange reaction with p-GaN, we have investigated the intermetallic compound Niln as a possible ohmic contact. The contacts were fabricated by depositing Niln on p-GaN films (p ∼ 2 × 1017 cm-3) using RF sputtering from a compound target.
D. B. Ingerly, Y. A. Chang, Y. Chen
openaire   +1 more source

Analysis of Low Voltage RF Power Capability on AlGaN/GaN and InAlN/GaN HEMTs for Terminal Applications

IEEE Journal of the Electron Devices Society, 2021
In this work, low voltage RF power capability on AlGaN/GaN and InAlN/GaN HEMTs is analyzed from the perspective of DC and pulse characteristics, for terminal applications whose operating voltage is usually in the range of 3 to 15 V. Device fabrication is
Yuwei Zhou, Jiejie Zhu, Minhan Mi, Meng Zhang, Pengfei Wang, Yutong Han, Sheng Wu, Jielong Liu, Qing Zhu, Yilin Chen, Bin Hou, Xiaohua Ma, Yue Hao   +12 more
doaj   +1 more source