Design, synthesis, and characterization of photoinitiators for two-photon polymerization

Reece Whitby; Ryan MacMillan; Stefaan Janssens; Sebastiampillai Raymond; Dave Clarke; Andrew Kay; Jianyong Jin; Cather M. Simpson

doi:10.1117/12.2235832

16 September 2016 Design, synthesis, and characterization of photoinitiators for two-photon polymerization

Reece Whitby, Ryan MacMillan, Stefaan Janssens, Sebastiampillai Raymond, Dave Clarke, Andrew Kay, Jianyong Jin, Cather M. Simpson

Author Affiliations +

Proceedings Volume 9920, Active Photonic Materials VIII; 992026 (2016) https://doi.org/10.1117/12.2235832
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

A series of dipolar and quadrupolar two-photon absorption (2PA) photoinitiators (PIs) based around the well-known triphenylamine (TPA) core and tricyanofuran (TCF) acceptors have been prepared for use in two-photon polymerisation (TPP). The synthesised dipolar species are designated as 5 and 7, and the remaining quadrupolar species are 6, 8, 9 and 10. Large two-photon absorption cross-sections (δ_2PA) ranging between 333 - 507 GM were measured at 780 nm using the z-scan technique. Fluorescence quantum yields (ΦF) were below 3% across the series when compared to Rhodamine 6G as a reference standard. Finally, TPP tests were conducted on PIs 7 and 8 to assess their ability to initiate the polymerisation of acrylate monomers using an 800 nm femtosecond Ti:Sapphire laser system.

Citation Download Citation

Reece Whitby, Ryan MacMillan, Stefaan Janssens, Sebastiampillai Raymond, Dave Clarke, Andrew Kay, Jianyong Jin, and Cather M. Simpson "Design, synthesis, and characterization of photoinitiators for two-photon polymerization", Proc. SPIE 9920, Active Photonic Materials VIII, 992026 (16 September 2016); https://doi.org/10.1117/12.2235832

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available