Results 61 to 70 of about 4,153 (244)

New applications of silicon wet etching using tmah water solution for fabrication of mems sensors. [PDF]

, 2013
U ovom radu prikazani su razvoj i usavršavanje tehnološkog procesa vlažnoganizotropnog hemijskog nagrizanja silicijuma orijentacije (100) u vodenom rastvorutetrametil-amonijum hidroksida (TMAH) koncentracije 25 tež.
Smiljanić, Milče
core   +1 more source

InGaN Laser Diodes with Etched Facets for Photonic Integrated Circuit Applications

Micromachines, 2023
The main objective of this work is to demonstrate and validate the feasibility of fabricating (Al, In) GaN laser diodes with etched facets. The facets are fabricated using a two-step dry and wet etching process: inductively coupled plasma—reactive ion ...
Krzysztof Gibasiewicz, Anna Kafar, Dario Schiavon, Kiran Saba, Łucja Marona, Eliana Kamińska, Piotr Perlin   +6 more
doaj   +1 more source

Zinc Sulfide Enabling Remarkable Surface Passivation of Crystalline Silicon

Advanced Energy Materials, EarlyView.
Polycrystalline ZnS films capped by Al2O3 provide outstanding surface passivation performance. The excellent lattice agreement between c‐Si and ZnS combined with a hydrogenation step result in extremely low interface state density (≈ 1×1010 cm−2 eV−1) and recombination current pre‐factor (1.0 fA/cm2), revealing a new passivation strategy for ...
Gabriel Bartholazzi, Elodie Galinier, Felipe Kremer, Piyumi Kodithuwakku, Daniel Macdonald, Lachlan Black   +5 more
wiley   +1 more source

Determinação de mercúrio em materiais de referência certificados de amostras biológicas por espectrometria de fluorescência atômica com geração de vapor frio após tratamento com hidróxido de tetrametilamônio [PDF]

, 2010
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.Neste trabalho foi desenvolvido um método rápido, simples e preciso para a quantificação e fracionamento de mercúrio em materiais de ...
Andrade, Rodolpho Merlo de
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A Simple Texturization Approach for Mono-Crystalline Silicon Solar Cell with Low TMAH Concentration Solution

, 2011
Texturing for mono-crystalline silicon solar cell by chemical anisotropic etching is one of the most important techniques in photovoltaic industry. In recent years, tetramethylammonium hydroxide (TMAH) solution or a mixture of TMAH solution with IPA was ...
Min Liu, Jun Zhang, Yao Zhang, Hong Wei Diao, Lei Zhao, Wei Ying Ou, Hai Ling Li, Wen Jing Wang, Wei Ming Lu, Chun Lan Zhou   +9 more
core   +1 more source

Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics

Laser &Photonics Reviews, EarlyView.
The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi, Daniele Bonaldo, Simone Dal Zilio, Vittorio Apolloni, Filippo Romanato, Gianluca Ruffato   +5 more
wiley   +1 more source

An improved TMAH Si-etching solution without attacking exposed aluminum

, 2001
In MEMS fabrication technology, it is often desirable to etch silicon substrate or polysilicon sacrificial layer after metallization is completed. Most of the etching solution would attack the aluminum.
Wang, YY, Sin, JKO, Hsing, I. Ming, Hsing, IM, Guizhen Yan, Sharma, RK, Chan, Philip C.H., Rajnish K. Sharma, Wang, Yangyuan, Johnny K.O. Sin, Sharma, Rajnish K., Philip C.H. Chan, Yangyuan Wang, Yan, Guizhen, Yan, GZ, I-Ming Hsing, Chan, PCH, Sin, Johnny K.O.   +17 more
core   +1 more source

Epitaxial Integration of III–V Membrane Photodetectors With Lateral p–i–n Junctions on the Silicon‐On‐Insulator Waveguide Platform

Laser &Photonics Reviews, EarlyView.
Epitaxial growth forms III–V membranes directly atop the silicon waveguide layer on SOI, while in‐plane in situ doping defines lateral p–i–n InP/InGaAs junctions in a single growth step. The membrane photodetectors achieve 50 Gb/s NRZ‐OOK operation.
Zhao Yan, Yifu Chen, Martin Ebert, Ka Ming Wong, Wenjie Wang, Tim Grieb, Florian F. Krause, Andreas Rosenauer, Graham T. Reed, David J. Thomson, Qiang Li   +10 more
wiley   +1 more source

Low Temperature Site‐Specific Pulsed Laser Annealing of MoS2

Small, EarlyView.
The application of laser pulses, of extremely short duration, is investigated as a potential new method to modify the atomic structure of ultrathin 2D materials for use in the creation of future electrical devices. The process is efficient, offering a site‐specific functionality, where regions of an electronic device that only requires annealing is ...
Nazar Farid, Aashi Gupta, Pavlina Metaxa, A Arifutzzaman, Hariprasad Kuduvan, Rahil Haria, Michele Conroy, Ian Campbell, Ageeth A Bol, James Connolly, Jun Lin, Ian Povey, Ray Duffy, Gerard M O'Connor   +13 more
wiley   +1 more source

Desenvolvimento de métodos simples e rápidos para determinação de mercúrio total e inorgânico em amostras biólogicas por espectrometria de absorção atômica com vapor frio [PDF]

, 2009
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.Foram desenvolvidos três procedimentos simples e confiáveis a fim de reduzir o tempo de preparo da amostra ...
Torres, Daiane Placido
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