Abstract
Compared to conventional and complex processes, including deposition, photolithography, and plasma-etching processes, WO3 nano-to-micro structures were successfully fabricated using direct imprinting process using WO3 nanoparticle-dispersed resin and consecutive annealing on any substrates in a simpler and more cost-effective manner. WO3 nanoparticle dispersed resins with various concentrations were evaluated for direct imprinting of WO3. The pattern fidelity and the surface morphology of imprinted WO3 nano-to-micro structures were characterized with field emission SEM. X-ray diffractionpattern was used to investigate the effect of annealing process on crystallinity of WO3 nano-to-micro structures. The crystal structure of imprinted WO3 was transformed from a hexagonal phase into a monoclinic phase by annealing. Optical transmittance of WO3 structures were also investigated using UV-vis spectroscopy. It was confirmed that diffused transmittance of WO3 structures could be increased up to 70% at 550 nm of wavelength without noticeable reduction of total transmittance, which is potentially applicable in the field of optoelectronic devices. Photo-electrochemical cells made of imprinted WO3 structure were properly operated.
| Original language | English |
|---|---|
| Pages (from-to) | 582-591 |
| Number of pages | 10 |
| Journal | Applied Spectroscopy Reviews |
| Volume | 51 |
| Issue number | 7-9 |
| DOIs | |
| Publication status | Published - 2016 Aug 8 |
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Keywords
- direct imprinting
- nano-to-micro structure
- nanoparticle-dispersed resin
- photocurrent
- photoelectrochemical cell
- Tungsten trioxide (WO )
ASJC Scopus subject areas
- Spectroscopy
- Instrumentation
Cite this
Direct patterning process for tungsten trioxide nano-to-micro structures. / Moon, Sungjin; Choi, Hak Jong; Jun, Junho; Huh, Daihong; Kim, Chaehyun; Lee, Hee Chul; Lee, Heon.
In: Applied Spectroscopy Reviews, Vol. 51, No. 7-9, 08.08.2016, p. 582-591.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Direct patterning process for tungsten trioxide nano-to-micro structures
AU - Moon, Sungjin
AU - Choi, Hak Jong
AU - Jun, Junho
AU - Huh, Daihong
AU - Kim, Chaehyun
AU - Lee, Hee Chul
AU - Lee, Heon
PY - 2016/8/8
Y1 - 2016/8/8
N2 - Compared to conventional and complex processes, including deposition, photolithography, and plasma-etching processes, WO3 nano-to-micro structures were successfully fabricated using direct imprinting process using WO3 nanoparticle-dispersed resin and consecutive annealing on any substrates in a simpler and more cost-effective manner. WO3 nanoparticle dispersed resins with various concentrations were evaluated for direct imprinting of WO3. The pattern fidelity and the surface morphology of imprinted WO3 nano-to-micro structures were characterized with field emission SEM. X-ray diffractionpattern was used to investigate the effect of annealing process on crystallinity of WO3 nano-to-micro structures. The crystal structure of imprinted WO3 was transformed from a hexagonal phase into a monoclinic phase by annealing. Optical transmittance of WO3 structures were also investigated using UV-vis spectroscopy. It was confirmed that diffused transmittance of WO3 structures could be increased up to 70% at 550 nm of wavelength without noticeable reduction of total transmittance, which is potentially applicable in the field of optoelectronic devices. Photo-electrochemical cells made of imprinted WO3 structure were properly operated.
AB - Compared to conventional and complex processes, including deposition, photolithography, and plasma-etching processes, WO3 nano-to-micro structures were successfully fabricated using direct imprinting process using WO3 nanoparticle-dispersed resin and consecutive annealing on any substrates in a simpler and more cost-effective manner. WO3 nanoparticle dispersed resins with various concentrations were evaluated for direct imprinting of WO3. The pattern fidelity and the surface morphology of imprinted WO3 nano-to-micro structures were characterized with field emission SEM. X-ray diffractionpattern was used to investigate the effect of annealing process on crystallinity of WO3 nano-to-micro structures. The crystal structure of imprinted WO3 was transformed from a hexagonal phase into a monoclinic phase by annealing. Optical transmittance of WO3 structures were also investigated using UV-vis spectroscopy. It was confirmed that diffused transmittance of WO3 structures could be increased up to 70% at 550 nm of wavelength without noticeable reduction of total transmittance, which is potentially applicable in the field of optoelectronic devices. Photo-electrochemical cells made of imprinted WO3 structure were properly operated.
KW - direct imprinting
KW - nano-to-micro structure
KW - nanoparticle-dispersed resin
KW - photocurrent
KW - photoelectrochemical cell
KW - Tungsten trioxide (WO )
UR - http://www.scopus.com/inward/record.url?scp=84964780447&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84964780447&partnerID=8YFLogxK
U2 - 10.1080/05704928.2016.1166372
DO - 10.1080/05704928.2016.1166372
M3 - Article
AN - SCOPUS:84964780447
VL - 51
SP - 582
EP - 591
JO - Applied Spectroscopy Reviews
JF - Applied Spectroscopy Reviews
SN - 0570-4928
IS - 7-9
ER -