Results 61 to 70 of about 50,856 (266)

A photonic crystal nanocavity laser in an optically very thick slab [PDF]

, 2011
A photonic crystal (PhC) nanocavity formed in an optically very thick slab can support reasonably high-Q modes for lasing. Experimentally, we demonstrate room-temperature pulsed lasing operation from the PhC dipole mode emitting at 1324 nm, which is ...
Huang, Jingqing, Kim, Se-Heon, Scherer, Axel   +2 more
core   +3 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Lift-off free catalyst for metal assisted chemical etching of nanostructured silicon zone plates in vapour phase

Nano Express
Metal-assisted chemical etching of silicon, especially in the vapour phase, is a highly promising technique for fabricating nanostructures with high aspect ratios.
Hanna Ohlin, Bryan Benz, Lucia Romano, Ulrich Vogt   +3 more
doaj   +1 more source

Low Reflection and Low Surface Recombination Rate Nano-Needle Texture Formed by Two-Step Etching for Solar Cells

Nanomaterials, 2019
In this study, needle-like and pyramidal hybrid black silicon structures were prepared by performing metal-assisted chemical etching (MACE) on alkaline-etched silicon wafers.
Chia-Hsun Hsu, Shih-Mao Liu, Shui-Yang Lien, Xiao-Ying Zhang, Yun-Shao Cho, Yan-Hua Huang, Sam Zhang, Song-Yan Chen, Wen-Zhang Zhu   +8 more
doaj   +1 more source

Recent Progress of Black Silicon: From Fabrications to Applications

Nanomaterials, 2020
Since black silicon was discovered by coincidence, the special material was explored for many amazing material characteristics in optical, surface topography, and so on.
Zheng Fan, Danfeng Cui, Zengxing Zhang, Zhou Zhao, Hongmei Chen, Yanyun Fan, Penglu Li, Zhidong Zhang, Chenyang Xue, Shubin Yan   +9 more
doaj   +1 more source

Novel types of anti-ecloud surfaces

, 2013
In high power RF devices for space, secondary electron emission appears as the main parameter governing the multipactor effect and as well as the e-cloud in large accelerators.
Aguilera, L., Caspers, F., Dávila, M. E., Galán, L., González, L. A., Montero, I., Nistor, V., Pinto, P. Costa, Raboso, D., Taborelli, M., Ulrich, U., Wolk, D.   +11 more
core   +1 more source

Efficient NiOx Hole Transport Layers Enabled by Multifunctional MXenes for High‐Performance Tin‐Lead Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
An efficient NiOx HTL is successfully prepared by introducing MXene as an additive without further surface modification to fabricate high‐performance FASn0.5Pb0.5I3 perovskite solar cells. The introduction of MXene contributes to improved conductivity of NiOx, better aligned at NiOx/perovskite interfaces, and enhanced quality of perovskite films ...
Lijun Chen, Guanqi Tang, Yanghou Wang, Xiaolong Cao, Junjun Jin, Jie Tang, Liyang Yu, Zheng Zhou, Peng You, Hanlin Hu, Weiqing Yang, Qidong Tai, Feng Yan   +12 more
wiley   +1 more source

High-Speed and Direction-Controlled Formation of Silicon Nanowire Arrays Assisted by Electric Field

Nanoscale Research Letters, 2020
Metal-assisted chemical etching (MaCE), a low-cost and versatile method was considered a promising technique for preparing silicon nanowires (SiNWs), yet the lack of well controlling the injected holes within Si might reduce the etching rate, create the ...
Pin-Ju Chien, Ta-Cheng Wei, Chia-Yun Chen   +2 more
doaj   +1 more source

The black silicon method: a universal method for determining the parameter setting of a fluorine-based reactive ion etcher in deep silicon trench etching with profile control [PDF]

, 1994
Very deep trenches (up to 200 µm) with high aspect ratios (up to 10) in silicon and polymers are etched using a fluorine-based plasma (SF6/O2/CHF3). Isotropic, positively and negatively (i.e.
de Boer, Meint J., Elwenspoek, Michael Curt, Jansen, Henricus V., Legtenberg, R., Legtenberg, Rob   +4 more
core   +4 more sources

Extensive Review of Materials for Next‐Generation Transparent Batteries and Their Design Strategies

Advanced Functional Materials, EarlyView.
Review explores emerging materials and design strategies for transparent batteries, examining electrodes, electrolytes, separators, and device architectures optimized for high electrochemical performance, mechanical flexibility, and optical transparency.
Atul Kumar Mishra, Shuvaraj Ghosh, Malkeshkumar Patel, Sourov Hossain, Ju‐Hyung Yun, Joondong Kim   +5 more
wiley   +1 more source