Fabrication of silica nanostructures with a microwave assisted direct patterning process.
Silica nanostructures were fabricated on glass substrate using a microwave assisted direct patterning (MADP) process, which is a variety of soft lithography. During the MADP process using polydimethylsiloxane (PDMS), mold and microwave heating are performed simultaneously. Blanket thin film and micro- to nano-sized structures, including moth-eye patterns of SiO2, which consisted of coalesced silica nanoparticles, were formed on glass substrates from SiO2 nano-particle dispersed solutions with varied microwave heating time. Optical properties and surface morphologies of micro-sized hemisphere, nano-sized pillar, moth-eye and 50 nm sized line/space silica patterns were measured using UV-vis and a scanning electron microscope. X-ray diffraction analysis of SiO2 thin films with and without microwave heating was also carried out.
Ju-Hyeon
JH
Shin
Bit-Na
BN
Go
Je-Hong
JH
Choi
Jin-Seoung
JS
Kim
Gun-Young
GY
Jung
Heetae
H
Kim
Heon
H
Lee