Electrochemically induced Fenton (electro-Fenton) reaction was used for efficient and controllable preparation of hydroxyl radicals, leading to the generation of luminescent quantum dots through etching of as-exfoliated MoS2 nanosheets. Morphologic changes of MoS2 nanosheets during the electro-Fenton reaction were monitored using transmission electron microscopy, showing that etching of MoS2 na...

A quartz crystal microbalance ~QCM! has been used for etching yield measurements in a low energy ion beam system. The goal is to obtain etching yields for ion energies below 150 eV for various ion chemistries and target materials. Typical beam currents are about 0.5 mA, and the mass change per unit time on the QCM is much smaller than that for typical QCM applications. A number of problems with...

In this work, we study metal droplets on a semiconductor surface that are the initial stage for both droplet epitaxy and local droplet etching. The distributions of droplet geometrical parameters such as height, radius and volume help to understand the droplet formation that strongly influences subsequent nanohole etching. To investigate the etching and intermixing processes, we offer a new met...

Angle-resolved x-ray photoelectron spectroscopy ( X P S ) and laserinduced thermal desorption (LD), combined with laser-induced fluorescence (LIF) detection, were used to study the etching of olycrystalline Si (poly-Si) and single crystal Si(lO0) in high density (1-2 x 10fl ions/cm3), low presswe (0.510 mTorr) C12MBr-containing, helical resonator plasmas. The XPS measurements on both unmasked S...

This paper describes a novel technique for manufacturing optical gratings using the one step DRIE (Deep Reactive Ion Etching) process. Utilising the notching effect documented in previous work when working with silicon on insulator (SOI) wafers, fully released, intact gratings have now been produced without the requirement for additional releasing processes. The one step process eliminates the ...

AIM The aim of this study was to assess the influence of surface texture and etching technique on surface roughness (Ra) and bond strength (BS) to enamel and to determine if a correlation exists between them. METHODS AND MATERIALS Fifty enamel blocks were either roughened with 600-grit SiC paper or polished with diamond pastes. After establishing ten test groups (n=5), the initial Ra measurem...

Ti3C2Tx (T = OH) was first prepared from Ti3AlC2 by HF etching and applied into a photocatalytic CO2 reduction. Then, the nanosheets present interbedded self-supporting structure extended interlayer spacing. Meanwhile, are decorated with abundant oxygen-containing functional groups in process of etching, which not only serve as active sites but also show efficient charge migration separation. A...

The present study aimed to evaluate the removal torque of titanium implants treated with triple acid etching. Twenty-one rats were used in this study. For all animals, the tibia was prepared with a 2 mm drill, and a titanium implant (2 × 4 mm) was inserted after treatment using the subtraction method of triple acid etching. The flaps were sutured. Seven animals were killed 14, 28, and 63 days a...