Table 1 Compare initiator used for Au composite fabrication by two-photon techniques.

From: Additive manufacture of complex 3D Au-containing nanocomposites by simultaneous two-photon polymerisation and photoreduction

Monomer

Initiator

Formulation

Gold salt: initiator

Reference

Weight ratio

Molar ratio

SU-8

PC2506 (photoacid generator in SU-8) + AF380

10 wt% gold salt, 1 wt% AF380, 1–5 wt% PC2506

<5:1

N/A

19,20

Acrylate-functionalized poly(ethylene glycol) derivative

Irgacure 2959

0.2 wt% gold salt, 0.15 wt% Irgacure 2959

4:3

1:1

21

TMPTA, PETA

DBMP + Ru(II) complex

3 wt% gold salt, 3 wt% DBMP, 0.1 wt% Ru(II) complex

1:1

1:1

22

PETA

DETC

20 wt% gold salt, 0.5 wt% DETC (Formulation 5)

40:1

39:1

This paper

  1. *PC2506: a diaryliodonium salt photoacid generator, Ar2I+SbF6−; AF380: an initiator developed by the US Air Force Research Laboratory with unknown chemical structure; Irgacure 2959: (1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propane-1-one); TMPTA: trimethylopropane triacrylate; DBMP: 2-benzyl-2-(dimethylamino)-4′-morpholinobutyrophenone; Ru(II) complex: tris(2,2′-bipyridyl) dichlororuthenium(II) hexahydrate.
  2. **According to the Safety Data Sheet of SU-8 2000 series, the concentration of initiator in commercial SU-8 is 1–5%.
Back to article page