National Cheng Kung University – Page 5

Poly(vinyl amine) Stabilized Colloidal CdS Quantum Dots of Color-Tunable Photoluminescence: Syntheses and Optical Properties

Chen K.M., Hou S.-S., National Cheng Kung University, TW

The colloidal CdS QD solutions were prepared with PVAm as the stabilizing polymer in a mixed solvent composed of methanol and water. The emitting colors of the prepared CdS QD colloids are tunable by varying [...]

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 [...]

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 [...]

Empirical analysis of metrological data fusion for dose control on nano scale lithography

Chu M.M., Chou J.H., National Cheng Kung University, TW

Recently, the immersion lithography has added extra disturbing factor, such as bubbles, particles which directly impact on current in-line metrology and dose control performance. Several works has reported the potential bubble effect.This study concentrates the [...]

Modeling of Laser Assisted Direct Imprinting Process Based on Pulsed Laser Heating and Elastodynamic Theory

Lee Y-C, Chuang C-H, Wang D-B, Liu C-P, Hsiao F-B, National Cheng Kung University, TW

Laser Assisted Direct Imprinting (LADI) is an efficient and direct way for fabricating nanostructures. In short, a quartz mold with nano-features is first pressed against a sample. Upon radiating a short laser pulse on the [...]

Numerical Investigation of Phase-Changing Heat Transfer for Laser-Assisted Direct Nano Imprint Processing

Hsiao F-B, Wang D-B, Jen C-P, Lee Y-C, Chuang C-H, National Cheng Kung University, TW

Laser-Assisted Direct Imprinting (LADI), a novel and promising technique, has been proposed since 2002 to utilize an excimer laser to irradiate and heat the silicon surface through a highly-transparent quartz mold preloaded onto the silicon. [...]

Electrokinetic and Hydrodynamic Focusing/Switching in Microfluidics

Yang R-J, Chang C-C, Huang S-B, Lee G-B, National Cheng Kung University, TW

This paper presents an investigation on hydrodynamic/electrokinetic focusing and switching, which are crucial for microfluidic applications. The hydrodynamic/electrokinetic focusing phenomenon is first theoretically modeled by employing a potential flow theory, and this simple theoretical model [...]

Self-assembled Alternating Nano-scaled Layers

Wu W-Y, Ting J-M, National Cheng Kung University, TW

This paper reports the use of a conventional sputter deposition technique to produce self-assembled alternating nano-scaled layers consisting of diamond-like carbon (DLC) and metal. A conventional sputter deposition technique produces alternating layers only when multiple [...]