Abstract
Silica-titania nanohybrid materials were synthesized using functionalized organosilanes and organically chelated titanium alkoxide in a simple sol-gel process. The synthesized silica-titania nanohybrid materials exhibited good solution processability and homogeneous dispersion without any phase separation regardless of the ratio of the mixture of the two components. The silica-titania nanohybrid materials exhibited good photoinitiator solubility and effective photocurability with a high degree of degree under ultraviolet (UV) exposure. Because of their high photocurability and solution processability, the silica-titania nanohybrid materials were readily converted into silica-titania nanohybrid films and were used for direct photopatterning without requiring the developing process used in the photomask method. In particular, the refractive indices of the silica-titania nanohybrid materials could be decreased by decreasing the content of chelated titanium alkoxide in the materials. Moreover, the silica-titania nanohybrid films exhibited high transmittance in the visible wavelength range, and their surface roughnesses were very smooth, exhibiting values <1 nm. On the basis of these observations, the fabricated silica-titania nanohybrid materials can be used in solution-processable materials for producing optical and electro-optical elements.
| Original language | English |
|---|---|
| Pages (from-to) | 1732-1737 |
| Number of pages | 6 |
| Journal | Current Applied Physics |
| Volume | 13 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2013 Aug 9 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Physics and Astronomy(all)
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Photopatternable and refractive-index-tunable sol-gel-derived silica-titania nanohybrid materials. / Kang, Dong Jun; Park, Go Un; Lee, Hyeon Hwa; Park, Hoy Yul; Park, Jang Ung.
In: Current Applied Physics, Vol. 13, No. 8, 09.08.2013, p. 1732-1737.Research output: Contribution to journal › Article
TY - JOUR
T1 - Photopatternable and refractive-index-tunable sol-gel-derived silica-titania nanohybrid materials
AU - Kang, Dong Jun
AU - Park, Go Un
AU - Lee, Hyeon Hwa
AU - Park, Hoy Yul
AU - Park, Jang Ung
PY - 2013/8/9
Y1 - 2013/8/9
N2 - Silica-titania nanohybrid materials were synthesized using functionalized organosilanes and organically chelated titanium alkoxide in a simple sol-gel process. The synthesized silica-titania nanohybrid materials exhibited good solution processability and homogeneous dispersion without any phase separation regardless of the ratio of the mixture of the two components. The silica-titania nanohybrid materials exhibited good photoinitiator solubility and effective photocurability with a high degree of degree under ultraviolet (UV) exposure. Because of their high photocurability and solution processability, the silica-titania nanohybrid materials were readily converted into silica-titania nanohybrid films and were used for direct photopatterning without requiring the developing process used in the photomask method. In particular, the refractive indices of the silica-titania nanohybrid materials could be decreased by decreasing the content of chelated titanium alkoxide in the materials. Moreover, the silica-titania nanohybrid films exhibited high transmittance in the visible wavelength range, and their surface roughnesses were very smooth, exhibiting values <1 nm. On the basis of these observations, the fabricated silica-titania nanohybrid materials can be used in solution-processable materials for producing optical and electro-optical elements.
AB - Silica-titania nanohybrid materials were synthesized using functionalized organosilanes and organically chelated titanium alkoxide in a simple sol-gel process. The synthesized silica-titania nanohybrid materials exhibited good solution processability and homogeneous dispersion without any phase separation regardless of the ratio of the mixture of the two components. The silica-titania nanohybrid materials exhibited good photoinitiator solubility and effective photocurability with a high degree of degree under ultraviolet (UV) exposure. Because of their high photocurability and solution processability, the silica-titania nanohybrid materials were readily converted into silica-titania nanohybrid films and were used for direct photopatterning without requiring the developing process used in the photomask method. In particular, the refractive indices of the silica-titania nanohybrid materials could be decreased by decreasing the content of chelated titanium alkoxide in the materials. Moreover, the silica-titania nanohybrid films exhibited high transmittance in the visible wavelength range, and their surface roughnesses were very smooth, exhibiting values <1 nm. On the basis of these observations, the fabricated silica-titania nanohybrid materials can be used in solution-processable materials for producing optical and electro-optical elements.
UR - http://www.scopus.com/inward/record.url?scp=84881104838&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881104838&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2013.07.005
DO - 10.1016/j.cap.2013.07.005
M3 - Article
AN - SCOPUS:84881104838
VL - 13
SP - 1732
EP - 1737
JO - Current Applied Physics
JF - Current Applied Physics
SN - 1567-1739
IS - 8
ER -