Results 31 to 40 of about 281,686 (341)

Cooling and Mechanical Performance Analysis of a Trapezoidal Thermoelectric Cooler with Variable Cross-Section

Energies, 2020
In this study, a full-scale three-dimensional trapezoidal thermoelectric cooler model is constructed to study its cooling performance and mechanical reliability using finite element simulation.
Tianbo Lu, Yuqiang Li, Jianxin Zhang, Pingfan Ning, Pingjuan Niu   +4 more
doaj   +1 more source

GaN-Based LEDs Grown on Graphene-Covered SiO₂/Si (100) Substrate

Crystals, 2020
The growth of nitride on large-size and low-cost amorphous substrates has attracted considerable attention for applications in large-scale optoelectronic devices.
Wurui Song, Fang Ren, Yunyu Wang, Yue Yin, Shuo Zhang, Bo Shi, Tao Feng, Jianwei Wang, Meng Liang, Yiyun Zhang, Tongbo Wei, Jianchang Yan, Junxi Wang, Jinmin Li, Xiaoyan Yi, Zhiqiang Liu   +15 more
doaj   +1 more source

Effect of the Growth Interruption on the Surface Morphology and Crystalline Quality of MOCVD-Grown h-BN

Crystals, 2023
Hexagonal boron nitride (h-BN) is one promising material class for applications in DUV optoelectronics due to the layered structure and ultra-wide bandgap.
Qi Zhang, Yanan Guo, Zhibin Liu, Dadi Wang, Qiang Li, Jianchang Yan, Jinmin Li, Junxi Wang   +7 more
doaj   +1 more source

Bandgap engineering in semiconductor alloy nanomaterials with widely tunable compositions [PDF]

, 2017
Over the past decade, tremendous progress has been achieved in the development of nanoscale semiconductor materials with a wide range of bandgaps by alloying different individual semiconductors.
Dou, L, Peidong Yang, CZN, Yang, P
core   +1 more source

Investigation on Three-Hump Phosphor-Coated White Light-Emitting Diodes for Healthy Lighting by Genetic Algorithm

IEEE Photonics Journal, 2019
In this paper, we carry out the theoretical spectral optimization and perform experiments by varying temperature and electrical current primarily on one-phosphor-coated three-hump white light-emitting diode (LED) for healthy indoor or outdoor lighting by
Ziquan Guo, Kai Liu, Lili Zheng, Tien-mo Shih, Yijun Lu, Tingzhu Wu, Yi Lin, Yuxue Zhang, Jianghui Zheng, Jie Chen, Lianxin Chen, Zhong Chen   +11 more
doaj   +1 more source

Minimizing Ecological Impacts of Marine Energy Lighting

Journal of Marine Science and Engineering, 2022
Marine energy is poised to become an important renewable energy contributor for the U.S., but widespread deployment of the technology hinges on its benefits outweighing the potential ecological impacts.
Caroline E. Reilly, Julia Larson, Alicia M. Amerson, Garrett J. Staines, Joseph H. Haxel, Paul Morgan Pattison   +5 more
doaj   +1 more source

Methods for measuring work surface illuminance in adaptive solid state lighting networks [PDF]

, 2011
The inherent control flexibility implied by solid-state lighting - united with the rich details offered by sensor networks - prompts us to rethink lighting control.
Aldrich, Matthew Henry, Lee, Byungkun, Lee, ByungKun, Paradiso, Joseph A.   +3 more
core   +1 more source

Improved Crystalline Quality of AlN by Epitaxial Lateral Overgrowth Using Two-Phase Growth Method for Deep-Ultraviolet Stimulated Emission

IEEE Photonics Journal, 2016
We report on the maskless epitaxial lateral overgrowth (ELOG) of the AlN layer on trench-patterned AlN/sapphire templates by metal-organic chemical vapor deposition (MOCVD).
Xiang Chen, Jianchang Yan, Yun Zhang, Yingdong Tian, Yanan Guo, Shuo Zhang, Tongbo Wei, Junxi Wang, Jinmin Li   +8 more
doaj   +1 more source

2014 Update on the Status of LED market [PDF]

, 2014
Light-emitting diodes (LEDs), a type of solid-state lighting (SSL), are revolutionizing the lighting market. In just the last few years, LED performance has accelerated quickly and a wave of new commercial, industrial and institutional LED fixtures has ...
BERTOLDI PAOLO, ZISSIS Georges
core   +1 more source

The improvement of GaN-based light-emitting diodes using nanopatterned sapphire substrate with small pattern spacing

AIP Advances, 2014
Self-assembly SiO2 nanosphere monolayer template is utilized to fabricate nanopatterned sapphire substrates (NPSSs) with 0-nm, 50-nm, and 120-nm spacing, receptively. The GaN growth on top of NPSS with 0-nm spacing has the best crystal quality because of
Yonghui Zhang, Tongbo Wei, Junxi Wang, Ding Lan, Yu Chen, Qiang Hu, Hongxi Lu, Jinmin Li   +7 more
doaj   +1 more source