TW – Page 24 – TechConnect Briefs

Dye-sensitized solar cell using a TiO2 nanocrystalline film electrode prepared by solution combustion synthesis

Wang C.M., Chungb S.L., National Cheng Kung University, TW

The nanocrystalline anatase TiO2 films were prepared and characterized in connection with their application to dye-sensitized solar cells. Solution combustion synthesis of TiO2 nanocrystalline film is based on hydrolysis, nitrated, and combustion reaction. The solution [...]

Amorphous Diamond as a Thermionic Material

Sung J.C., Sung M., Kan M-C, Hsiao T-J., Chen Y-T, Sung J.C., Sung M., Kinik Company, TW

Amorphous diamond is essentially a chaotic carbon mixture with distorted sp2 and sp3 bonds. As such it possesses both metallic character of conductive graphite and semiconductor character of insulating diamond. Moreover, as each carbon atom [...]

Application of Abductive Network and FEM to Predict the Stress-Strain Curve with strain hardening effect of Bulk Metals by Nanoindentation test

Yang T.S., Qiu J.Z., Chang S.Y., National Formosa University, TW

Finite element method (FEM) has been widely used for numerical simulation of indentation tests on bulk material in order to analyze its deformation response and investigate the influence of indenter geometry, friction and material elastic [...]

Analysis of an Ink Ejection Failure on a MEMS Micro-Injector Printing Head

Lee I.Y., Hsu T-P, Tseng F-C, Tang H-K, Lin G-D, BenQ Corporation, TW

In this paper, a stress model is proposed and this model well explains the stress induced failure mechanism of this MEMS micro-injector. An effective solution and optimize design to enhance the robustness of ink chamber [...]

Amorphous Diamond Solar Cells

Sung J.C., Sung M., Kan M-C, Hsiao T-J., Sung J.C., Sung M., Kinik Company, TW

Silicon based photo voltaic panels are the mainstream of solar cells. However, there are intrinsic limitations of such devices for replacing power plants. The low conversion efficiency (

Using epoxy resin to fabricate a master for microfluidic devices in poly(dimethylsiloxane)

Pan Y-J, Yang R-J, National Cheng Kung University, TW

This paper presents two methods for the production of UV epoxy resin masters for the replication of PDMS-based microfluidic chips. The epoxy resin master can be either fabricated by using a negative glass template which [...]

Enhancement of micro-flow mixing using DC nonlinear electrokinetic vortices

Chen J.K., Yang R-J, National Cheng Kung University, TW

Electroosmotic flow (EOF) is a fundamental electrokinetic phenomenon which finds extensive use in wide varieties of practical biochip applications and analyses. Generally, the dielectric materials (PDMS, glass, etc.) used to construct microchips have low dielectric [...]

Numerical and Experimental Investigation of Three-Dimensional Hydrodynamic Focusing in Polydimethylsiloxane (PDMS) Microchannels

Chang C-C, Yang R-J, National Cheng Kung University, TW

In this work, we have designed and fabricated a three-dimensional hydrodynamic focusing microfluidic device, as shown in Figure 1. The design of the device is modified from that of a previous study [1], which comprises [...]

Development of Immunoassay Microfluidic Chip Using Serial-flow Method

Hsieh J., Yin H-L, Huang T-T, Huang Y-C, Hsu H-H, Lin Y-S, Huang T-T, Huang Y-C, Instrument Technology Research Center, TW

A serial-type microfluidic chip toward immunoassay-on-chip is reported. The presented chip contains no active microvalves and micropumps, rendering its low cost and disposability. Due to the serial flowing of fluids, minimal control effort is required. [...]

Characterization and Optimization Design of the Polymer-based Capacitive Micro-arrayed Ultrasonic Transducer

Chiou D.Y., Chen M.Y., Chang M.W., Deng T.M., RFID Technology Center/Industrial Technology Research Institute (RTC/ITRI), TW

The polymer-based capacitive micro-arrayed ultrasonic transducer (P-CMUT) have been shown to be a more attractive alternative to conventional CMUT in terms of “flexibility” that can be applied in many areas, ranging from consumer electronics to [...]