Enhanced etching characteristics of Si{100} in NaOH-based two-component solutionMicro and Nano Systems Letters - Tập 10 - Trang 1-8 - 2022
V. Swarnalatha, S. Purohit, P. Pal, R. K. Sharma
Silicon wet bulk micromachining is the most widely used technique for the fabrication of diverse microstructures such as cantilevers, cavities, etc. in laboratory as well as in industry for micro-electromechanical system (MEMS) application. Although, increasing the throughput remains inevitable, and can be done by increasing the etching rate. Furthermore, freestanding structure release time can be...... hiện toàn bộ
Analysis of liquid-type proof mass under oscillating conditionsMicro and Nano Systems Letters - Tập 8 - Trang 1-7 - 2020
Dong-Joon Won, Sangmin Lee, Joonwon Kim
In this study, the spring constant of an accelerometer with a liquid-type proof mass was analyzed. Unlike a general solid-type microelectromechanical system accelerometer, the Laplace pressure is considered a restoring force in the analyzed accelerometer. Using a base excitation mathematical model, the sensor output could be estimated for a specific spring constant. Although the estimated sensor o...... hiện toàn bộ
Simple refractometry using optical path separation via multiple pinholesMicro and Nano Systems Letters - Tập 5 - Trang 1-6 - 2017
Sang Youl Yoon, Ji-chul Hyun, Sung Yang
We herein report on a simple and novel method of refractometry that uses a micro image defocusing technique. This simple method makes use of a three-pinhole aperture attached to a microscopic optical system. In order to develop our proposed method, an analytical formula was derived from the principles of optical modelling, taking into consideration imaging optics, and was verified experimentally. ...... hiện toàn bộ
Synthesis of metallic aluminum particles by electrolysis in aqueous solutionMicro and Nano Systems Letters - - 2021
Takefumi Hosoya, Tadashi Yonezawa, Noriko Yamauchi, Kouichi Nakashima, Yoshio Kobayashi
AbstractThe present work proposes a method for fabricating metallic Al particles in aqueous solution. An aqueous colloidal solution was prepared from an aqueous aluminum nitrate nonahydrate solution by electrolysis using metallic Al plates as the anode and cathode under ultrasonic irradiation in water at 25–45 °C. The sizes of the particles in the colloidal solutio...... hiện toàn bộ
Development of a fully automated desktop chemical vapor deposition system for programmable and controlled carbon nanotube growthMicro and Nano Systems Letters - Tập 7 - Trang 1-8 - 2019
Ju Hyun Ahn, Minho Na, Sungkwan Koo, Hyunsoo Chun, Inhwan Kim, Jong Won Hur, Jae Hyuk Lee, Jong G. Ok
We have rationally designed and developed a fully automated desktop furnace system that enables programmable chemical vapour deposition growth of carbon nanotubes with controlled height, density, and pattern architecture. Comprising several essential components involving a heating furnace, mass flowmeters, and computer controller, the developed system realizes controlled and practical carbon nanot...... hiện toàn bộ
The influence of resistance and carrier concentration on the output voltage of a ZnO nanogeneratorMicro and Nano Systems Letters - Tập 1 - Trang 1-6 - 2013
Thomas S van den Heever, Willem J Perold
Zinc oxide (ZnO) nanowires were synthesised through two different methods; the vapour liquid solid (VLS) method and an aqueous solution method. Each method had its own set of parameters and changes in those parameters influenced the output voltage of a nanogenerator. Changes in output voltage occurred as a result of variations in the resistance and the carrier concentration of grown nanowires as t...... hiện toàn bộ