Visible Light Driven Hydrogen Evolution with a Noble Metal Free CuGa$_{2}$In$_{3}$S$_{8}$ Nanoparticle System in Water [PDF]
CuGa$_{2}$In$_{3}$S$_{8}$ (CGIS) nanoparticles were synthesised by a hot-injection method and rendered water dispersible by modification with the hydrophilic ligand 3-mercaptopropionic acid (MPA).
Kandiel, Tarek A +2 more
core +2 more sources
We demonstrated dual-surface modification of GaN/AlGaN/GaN high-electron mobility transistors using tetramethylammonium hydroxide (TMAH) and piranha solutions prior to gate metallization.
M. Siva Pratap Reddy +3 more
doaj +1 more source
Controllable arrangement of integrated obstacles in silicon microchannels etched in 25 wt.% TMAX [PDF]
In this paper, fabrication of silicon microchannels with integrated obstacles by using 25 wt.% tetramethylammonium hydroxide (TMAH) aqueous solution at the temperature of 80°C is presented and analysed.
Smiljanić Milče M. +7 more
doaj +1 more source
The analysis of European lacquer : optimization of thermochemolysis temperature of natural resins [PDF]
In order to optimize chromatographic analysis of European lacquer, thermochemolysis temperature was evaluated for the analysis of natural resins. Five main ingredients of lacquer were studied: sandarac, mastic, colophony, Manila copal and Congo copal ...
A Heginbotham +53 more
core +2 more sources
Origin and Control of OFF-State Leakage Current in GaN-on-Si Vertical Diodes [PDF]
Conventional GaN vertical devices, though promising for high-power applications, need expensive GaN substrates. Recently, low-cost GaN-on-Si vertical diodes have been demonstrated for the first time.
Azize, Mohamed +12 more
core +1 more source
InGaN Laser Diodes with Etched Facets for Photonic Integrated Circuit Applications
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 +6 more
doaj +1 more source
Determination of precise crystallographic directions for mask alignment in wet bulk micromachining for MEMS [PDF]
In wet bulk micromachining, the etching characteristics are orientation dependent. As a result, prolonged etching of mask openings of any geometric shape on both Si{100} and Si{110} wafers results in a structure defined by the slowest etching planes.
Pal, Prem +4 more
core +1 more source
Characterization of humic acids from low-rank coals by 13C-NMR and pyrolysis-methylation. Formation of benzenecarboxylic acid moieties during the coalification process [PDF]
Instituto de Recursos Naturales y Agrobiologia de Sevilla, C.S.I.C., P.O. Box 1052, 41080-Seville, Spain; E-mail address: delrio@irnase.csic.esHumic acid (HA) fractions isolated from a peat and lignite deposit were studied by CP/MAS 13C-NMR and pyrolysis-
González-Vila, Francisco Javier +3 more
core +4 more sources
The optimization of etchant parameters in wet etching plays an important role in the fabrication of semiconductor devices. Wet etching of tetramethylammonium hydroxide (TMAH)/isopropyl alcohol (IPA) on silicon nanowires fabricated by AFM lithography is ...
Siti Noorhaniah Yusoh +1 more
doaj +1 more source
Background Tetramethylammonium hydroxide (TMAH) is a quaternary ammonium compound that is both a base corrosive and a cholinergic agonist, and it is widely used in the photoelectric and semiconductor industries.
Chih-Kang Huang +6 more
doaj +1 more source

