Abstract
Novel A-π-D-π-A V-shaped 3,6-bis(phenylethynyl)carbazole based chromophores were designed and synthesized as two-photon polymerization (TPP) initiators combining a large two-photon absorption cross-section with facilitated radical formation. 9-Benzyl-3,6-bis(4-nitrophenylethynyl)carbazole (4d) shows a strong two-photon absorption around 800 nm and exhibits very high two-photon polymerization initiating sensitivity with a threshold power of 0.8 mW at the concentration of 0.18 mol%, which is much lower than the threshold power of 6.37 mW found for benzil. The corresponding threshold of laser exposure intensity for TPP is 3.0 × 107 mJ cm-2. The lowest loading of 4d is up to 0.012 mol% with a threshold power of 3.2 mW.
| Original language | English |
|---|---|
| Pages (from-to) | 1433-1438 |
| Number of pages | 6 |
| Journal | Journal of Materials Chemistry |
| Volume | 17 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - Jan 1 2007 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Chemistry(all)
- Materials Chemistry
Cite this
Design of high efficiency for two-photon polymerization initiator : Combination of radical stabilization and large two-photon cross-section achieved by N-benzyl 3,6-bis(phenylethynyl)carbazole derivatives. / Xing, Jin Feng; Chen, Wei Qiang; Gu, Jie; Dong, Xian Zi; Takeyasu, Nobuyuki; Tanaka, Takuo; Duan, Xuan Ming; Kawata, Satoshi.
In: Journal of Materials Chemistry, Vol. 17, No. 14, 01.01.2007, p. 1433-1438.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Design of high efficiency for two-photon polymerization initiator
T2 - Combination of radical stabilization and large two-photon cross-section achieved by N-benzyl 3,6-bis(phenylethynyl)carbazole derivatives
AU - Xing, Jin Feng
AU - Chen, Wei Qiang
AU - Gu, Jie
AU - Dong, Xian Zi
AU - Takeyasu, Nobuyuki
AU - Tanaka, Takuo
AU - Duan, Xuan Ming
AU - Kawata, Satoshi
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Novel A-π-D-π-A V-shaped 3,6-bis(phenylethynyl)carbazole based chromophores were designed and synthesized as two-photon polymerization (TPP) initiators combining a large two-photon absorption cross-section with facilitated radical formation. 9-Benzyl-3,6-bis(4-nitrophenylethynyl)carbazole (4d) shows a strong two-photon absorption around 800 nm and exhibits very high two-photon polymerization initiating sensitivity with a threshold power of 0.8 mW at the concentration of 0.18 mol%, which is much lower than the threshold power of 6.37 mW found for benzil. The corresponding threshold of laser exposure intensity for TPP is 3.0 × 107 mJ cm-2. The lowest loading of 4d is up to 0.012 mol% with a threshold power of 3.2 mW.
AB - Novel A-π-D-π-A V-shaped 3,6-bis(phenylethynyl)carbazole based chromophores were designed and synthesized as two-photon polymerization (TPP) initiators combining a large two-photon absorption cross-section with facilitated radical formation. 9-Benzyl-3,6-bis(4-nitrophenylethynyl)carbazole (4d) shows a strong two-photon absorption around 800 nm and exhibits very high two-photon polymerization initiating sensitivity with a threshold power of 0.8 mW at the concentration of 0.18 mol%, which is much lower than the threshold power of 6.37 mW found for benzil. The corresponding threshold of laser exposure intensity for TPP is 3.0 × 107 mJ cm-2. The lowest loading of 4d is up to 0.012 mol% with a threshold power of 3.2 mW.
UR - http://www.scopus.com/inward/record.url?scp=33947619612&partnerID=8YFLogxK
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U2 - 10.1039/b616792f
DO - 10.1039/b616792f
M3 - Article
VL - 17
SP - 1433
EP - 1438
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
SN - 0959-9428
IS - 14
ER -