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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 17 — Aug. 17, 2009
  • pp: 15052–15060

Pronounced photosensitivity of molecular [Ru(bpy)2(OSO)]+ solutions based on two photoinduced linkage isomers

Volker Dieckmann, Sebastian Eicke, Jeffrey J. Rack, Theo Woike, and Mirco Imlau  »View Author Affiliations

Optics Express, Vol. 17, Issue 17, pp. 15052-15060 (2009)

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Photosensitive properties of [Ru(bpy)2(OSO)] ∙ PF6 dissolved in propylene carbonate originating from photoinduced linkage isomerism have been studied by temperature and exposure dependent transmission and UV/Vis absorption spectroscopy. An exceeding photochromic photosensitivity of S = (63 ± 10) × 103 cm l J−1 mol−1 is determined. It is attributed to a maximum population of 100% molecules in the photoinduced isomers, a unique absorption cross section per molecule and a very low light exposure of Q0 = (0.25 ± 0.03) Ws cm−2 for isomerism. Relaxation studies of O-bonded to S-bonded isomers at different temperatures verify the existence of two distinct structures of linkage isomers determined by the activation energies of EA,1 = (0.76 ± 0.08) eV and EA,2 = (1.00 ± 0.14) eV.

© 2009 OSA

OCIS Codes
(160.4670) Materials : Optical materials
(260.5130) Physical optics : Photochemistry
(300.6550) Spectroscopy : Spectroscopy, visible
(160.5335) Materials : Photosensitive materials

ToC Category:

Original Manuscript: June 10, 2009
Revised Manuscript: July 23, 2009
Manuscript Accepted: July 25, 2009
Published: August 10, 2009

Volker Dieckmann, Sebastian Eicke, Jeffrey J. Rack, Theo Woike, and Mirco Imlau, "Pronounced photosensitivity of molecular [Ru(bpy)2(OSO)]+ solutions based on two photoinduced linkage isomers," Opt. Express 17, 15052-15060 (2009)

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