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Recently, silicon nanowires (SiNWs) have been proven to be highly active in the photocatalysis of dye degradation. However, the unstable hydrogen-terminated surface and the need for constant light irradiation hinder their extensive use. In this work, a stable silica shell was intentionally formed on the surface of SiNWs to produce Si/SiOx core–shell silicon nanowires (S-SiNWs). Light-illuminated or...
A major event often has repercussions on both news media and microblogging sites such as Twitter. Reports from mainstream news agencies and discussions from Twitter complement each other to form a complete picture. An event can have multiple aspects (sub-events) describing it from multiple angles, each of which attracts opinions/comments posted on Twitter. Mining such reflections is interesting to...
The feature size of transistors is continuously decreasing while the wafer size is increasing, which presents new challenges to the interconnection between the chips and substrates. Currently, substrate has become the most influential factor of the cost in electronic packaging. In packaging substrate, the most commonly used conducting metal is copper, which is generally fabricated by electroplating...
In plastic power devices, the interfaces of Cu/EMC are most likely to delaminate under thermal loading, especially when moisture diffuses into the interface through EMC. In this work, the bare die samples were fabricated in standard commercial process. Shear test of Cu/EMC interface was designed to measure the strength of the interface with different lead-frame oxidation and moisture absorption time...
The mechanism of catalytic oxidation of cyclopentene with aqueous hydrogen peroxide to prepare glutaraldehyde in a tungstic acid-tert-butanol system is that, first, cyclopentene is oxidized to cyclopentene oxide almost quantitively, then the latter is turned into an intermediate--a kind of organic peroxide, which is separated and identified as β-hydroxycyclopentylperoxide. At room temperature, it...
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