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Water-soluble benzylidene cyclopentanone dye for two-photon photopolymerization

Paper ID Volume ID Publish Year Pages File Format Full-Text
28203 44064 2009 6 PDF Available
Title
Water-soluble benzylidene cyclopentanone dye for two-photon photopolymerization
Abstract

A novel water-soluble benzylidene cyclopentanone dye was synthesized by introducing four sodium carboxylate groups into 2,5-Bis-[4-(diethylamino)-benzylidene]-cyclopentanone (BDEA). Its two-photon absorption (TPA) cross-section in water solution was determined by nonlinear transmission method with Ti:sapphire femtosecond laser as exciting light source. 287 GM at 800 nm was obtained, which was quite larger than TPA cross-section of water-soluble xanthene dyes. Using this new dye as initiator, two-photon polymerization (TPP) of water-soluble acrylate could be induced directly. Low threshold energy of 0.51 mW and a high resolution of 400 nm were achieved, indicating this dye would have extensive application prospects in TPP under aqueous environments.

Keywords
Two-photon polymerization; Water-soluble; Photoinitiator; Benzylidene cyclopentanone
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Water-soluble benzylidene cyclopentanone dye for two-photon photopolymerization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 202, Issue 1, 5 February 2009, Pages 74–79
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
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