Triphenylamine-modified quinoxaline derivatives as two-photon photoinitiators

Two new chromophores, triphenylamine-modified quinoxaline (TPAQ) and benzoquinoxaline (TPABQ), were synthesized, and their linear spectroscopy and two-photon absorption properties were investigated. For comparison, 4-ethoxyphenyl-substituted quinoxaline (EOQ) and benzoquinoxaline (EOBQ) were prepare...

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Bibliographic Details
Published inNew journal of chemistry Vol. 33; no. 7; pp. 1578 - 1582
Main Authors Cao, Xingbo, Jin, Feng, Li, Ying-Feng, Chen, Wei-Qiang, Duan, Xuan-Ming, Yang, Lian-Ming
Format Journal Article
LanguageEnglish
Published CAMBRIDGE Royal Soc Chemistry 01.01.2009
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
CROSS-SECTIONS
EXCITATION
ABSORPTION
QUANTUM YIELDS
OPTICAL-DATA STORAGE
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Summary:Two new chromophores, triphenylamine-modified quinoxaline (TPAQ) and benzoquinoxaline (TPABQ), were synthesized, and their linear spectroscopy and two-photon absorption properties were investigated. For comparison, 4-ethoxyphenyl-substituted quinoxaline (EOQ) and benzoquinoxaline (EOBQ) were prepared. The results showed that TPAQ possesses a high fluorescence quantum yield and a high delta(2PA) value of > 160 GM in the laser light wavelength range of 780-820 nm, and is superior to most common benzil-type compounds as a photoinitiator in two-photon initiated polymerization.
ISSN:1144-0546
1369-9261
DOI:10.1039/b900464e