نتایج جستجو برای: chemical etching
تعداد نتایج: 386897 فیلتر نتایج به سال:
1 COBRA Inter-University Research Institute on Communication Technology Eindhoven University of Technology –Faculty of Electrical Engineering Telecommunications Technology and Electromagnetics – Opto-Electronic Devices Group P.O.Box 513, 5600 MB Eindhoven, The Netherlands E-mail: [email protected] 2 Department of Electronic Materials Engineering, Research School of Physical Sciences and En...
We report solar cells with both black Si antireflection and SiO2 surface passivation provided by inexpensive liquid-phase chemistry, rather than by conventional vacuum-based techniques. Preliminary cell efficiency has reached 16.4%. Nanoporous black Si antireflection on crystalline Si by aqueous etching promises low surface reflection for high photon utilization, together with lower manufacturi...
A new fabrication method is proposed to produce nanostructures on monocrystalline silicon based on the friction-induced selective etching of its Si3N4 mask. With low-pressure chemical vapor deposition (LPCVD) Si3N4 film as etching mask on Si(100) surface, the fabrication can be realized by nanoscratching on the Si3N4 mask and post-etching in hydrofluoric acid (HF) and potassium hydroxide (KOH) ...
AIM The purpose of this review is to represent acids that can be used as surface etchant before adhesive luting of ceramic restorations, placement of orthodontic brackets or repair of chipped porcelain restorations. Chemical reactions, application protocol, and etching effect are presented as well. STUDY SELECTION Available scientific articles published in PubMed and Scopus literature databas...
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