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A technical approach based on microbial technology is proposed to help resolve the problems caused by explosive gases in coal mines. The proposed technique uses methanotrophic bacteria to oxidize methane. In laboratory experiments, the oxidation effect of hanging nets impregnated with liquid containing methanotrophic bacteria was investigated at different air flow-rates. The experimental results showed...
HfO2/Al2O3/GeOx/Ge gate stacks were fabricated by applying the plasma post oxidation to HfO2/Al2O3/Ge structures. These Ge gate stack are shown to simultaneously realize both ultrathin EOT of ∼0.7 nm and low Dit of 1011 cm−2eV−1 order. The superior operation of (100) Ge pMOSFETs with these gate stacks has been demonstrated with record high hole mobility of 596 cm2/Vs under ∼0.8 nm EOT among the Ge...
A novel plasma post oxidation method has been proposed to form an Al2O3/GeOx/Ge gate stack by using oxygen plasma through a thin ALD Al2O3 layer. This Ge gate stack is shown to simultaneously realize both thin EOT of ∼1 nm and low Dit of <1011 cm−2eV−1. Ge pMOSFETs, fabricated by employing this method, have demonstrated superior device operation with high hole mobilities of 437, 526 and 345...
To make an electrically pumped photonic crystal membrane laser is a challenging task. One of the problems is how to avoid short circuiting between the p- and n-doped parts of the laser diode, when the membrane thickness is limited to 200-300nm. We propose to use the oxide of AlInAs to realize a current blocking function. In this way, based on submicron selective area re-growth, we aim for electrically...
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