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Nanocone forests with high optical absorption and high photoelectric conversion efficiency are presented in this work. To prepare the nanocone forests, plasma repolymerization forming nanowires during Ar-plasma bombardment is the key technique, and the self-generated nanowires are further utilized as nanomasks in reactive ion etching for nanocone forests. Based on the achieved absorption of a 700nm-high...
In this work, a lithography-free approach for fabricating patternable nanopillars is reported. The key technique of the approach is to introduce a gap over the substrate by covering it with a cap, which contains through holes and the material on its lower surface has similar etching rate with the substrate. By this means, uneven etching of the substrate is induced under the through holes, consequently,...
Nanofiber forests with high hydrophilicity and humidity-sensitivity are reported in this work. They are fabricated from polyimide (PI) by a plasma-stripping technique, and are utilized as a humidity-sensitive material in humidity sensors. In a relative humidity range of 50%–80%, nanofiber forest-based devices have capacitance ∼50% larger than that of PI-based sensors. Meanwhile, as the nanofibers...
In this work, nanofiber forests with high infrared (IR) absorptance are reported. In wavelength range from 1.5 to 5 μm, the absorptance of the nanofiber forests reaches a minimum of 96%, which is much higher than that of Si3N4-based IR absorbers and the polymer coatings from which the nanofibers are obtained. Such nanofiber forests are fabricated by using a plasma-stripping-of-polymer technique, which...
The study aims to find some other functions of IL-7 in control TB and screen a new host marker in small groups of TB patients and controls to identify promising markers for large-scale testing. Real-time RT-PCR is used to evaluate the stability of IL-4 and IL-7 mRNA in the presence of Actinomycin D in whole blood from active TB cases and uninfected healthy controls. Flow cytometry and cytokine secretion...
Recent development in wireless technology enables communication between vehicles. The concept of Co-operative Adaptive Cruise Control (CACC) — which uses wireless communication between vehicles — aims at string stable behaviour in a platoon of vehicles. “String stability” means any non-zero position, speed, and acceleration errors of an individual vehicle in a string do not amplify when they propagate...
We design, fabricate and demonstrate 850 nm VCSEL and PD arrays which operate at 25 Gb/s per channel, up to 600 Gb/s with 24 channels, for low-power parallel optical module applications. We also report a complete 25 Gb/s VCSEL to PD back-to-back link.
By properly incorporating wafer level package (WLP) and chip embedded processes, a type II chip-in-substrate package (CiSP) without ultra-thin chips is developed for high speed memory devices in this paper. According to the design concept of the type II CiSP, a hybrid process using build-up technologies in wafer level and COG-based (chip-on-glass) transfer bonding is explored to implement the JEDEC-compliant...
Summary form only given. We present a process that seals an exposed AlAs layer against further oxidative decomposition. The sealant is formed by a rapid thermal anneal (RTA) to a temperature of /spl sim/500 to 600/spl deg/C in forming gas after brief exposure of the AlAs surface to the typical room environment. The surface barrier layer thus formed is thin and impermeable to diffusing oxygen species,...
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