NOEL

Semiconductor processes and nanofabrication


 

High-efficiency photo-electron conversion devices

Semiconductor processes and nanofabrication

Characterizations and applications of nanomaterials

Light harvesting and light extraction

Optical analysis techniques

Eco-friendly devices and sensors

 

 


 

 


 

Nano-imprinting in metal (NIM)

We describe a thermal embossing imprint method, which we name “nano-imprinting in metal” (NIM), for patterning metal films with a variety of profiles. Metal films exhibiting either perforated hole-arrays or corrugated structures with various surface morphologies can be fabricated rapidly. The SPR phenomenon allowed energy coupling to the other side of the textured metal film, causing a dramatic increase in the transmission. As a technique for readily controlling the working wavelength and transmittance, the NIM method has great potential for application in various optoelectronic devices.

Pic1

FDTD diagrams of a gold film  possessing a continuous corrugated structure having a period  of 400 nm with 90nm.


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Pic3


Schematic representations of the NIM and double-imprinting processes

 
 
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