Advanced Materials & Manufacturing – Page 327

Micro Crumples for Self-Assembly of Field Emission Devices

Sambandan S., Palo Alto Research Center, US

We study the electrostatic properties of crumpled conducting films, in particular the effective vertical electric field. The inspiration for this work is the possibility of self-organizing field emission devices with aims to reduce the cost [...]

Maskless Lithography Using Patterned Amorphous Silicon Layer Induced by Femtosecond Laser Irradiation

Kiani A., Venkatakrishnan K., Tan B., Ryerson University, CA

In this research, we reported a maskless lithography method by a combination of laser amorphization of silicon and wet alkaline etching. This technique can lead to a promising solution for maskless lithography because in comparison [...]

Influence of resist composition on demolding force in UV nanoimprint lithography

Amirsadeghi A., Lee J., Park S., Louisiana State University, US

We investigated the influence of the Young’s Modulus (E) of UV resist on the measured demolding force in UV-NIL by varying compositions of UV-curable polymers. We found that decreasing crosslinking content of the polymers decreases [...]

MEMS Fab: Design, Manufacture, Instrumentation

Development of Precision Stage with Magnified Displacement System

Kim J.G., Choi S.C., Lee D.W., Pusan National University, KR

In this study, a new precision stage was developed using self-lever-mechanism to magnify its moving displacement optically. The developed precision stage was constructed as a position-sensitive photodiode (PSPD), a laser diode (LD), and a hinge-connected [...]

Development of Nitrogen modified TiO2 and activated carbon fiber composites in single step

Tsai C-Y, Hsi H-C, Fan K.-S., National Taipei University of Technology, TW

The aim of this study is to develop visible-light photocatalyst nanopowders by N2 modified TiO2 matrix via gas-phase evaporation condensation with thermal plasma as a heating source. The formed visible-light TiO2 nanopowders are subsequently doped [...]

VDK 4000 Direct Write System: A new approach to direct write technology

Theodore M., Fielding J., Royer J., Kalanovic V., Nirilovic J., Sears J., AFRL, US

VDK 4000 is a Flexible Robotic Environment (FRE) direct write system. The idea behind Flexible Robotic Environment (FRE) concept is building a robotic modular system around an application instead of having an application fit within [...]

Deposition of Interwoven Fibrous Nanostructure using Ultrafast Laser Ablation in Ambient Condition

Tavangar A., Tan B., Venkatakrishan K., Ryerson University, CA

In this paper, a new method for site-specific deposition of fibrous nanostructure is demonstrated using laser induced reverse transfer (LIRT). The LIRT method makes it achievable to generate and deposit fibrous nanostructure of a wide [...]

Fabrication of biodegradable zein films by using soft lithography

Altunakar B., Kokini J.L., University of Illinois at Urbana-Champaign, US

Microfluidic components are widely used in the design of both bioanalytical and diagnostic microdevices. The miniaturized sample volumes together with modifications of the surface chemistry and localization of molecules within microfluid channels has opened many [...]

Fabrication of pyramid array nanostructure on gallium nitride

Hsieh C-C, Ke W.C., Chen N-P, Cheng Y.C., Lin J.C., Lin W.J., Cheng Y.C., Li T-C, Lin J.C., Lin W.J., Lin J.C., Lin W.J., Yuan Ze University, TW

GaN has relatively high refractive index and results in low light extraction efficiency in photonics applications. A novel way to combine the various methods to enhace the efficiency is to construct a pyramid array on [...]