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Proceedings Paper

Reverse saturable absorption (RSA) in fluorinated iridium derivatives
Author(s): Michael J. Ferry; Ryan M. O'Donnell; Neal Bambha; Trenton R. Ensley; William M. Shensky III; Jianmin Shi
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Paper Abstract

The photophysical properties of cyclometallated iridium compounds are beneficial for nonlinear optical (NLO) applications, such as the design of reverse saturable absorption (RSA) materials. We report on the NLO characterization of a family of compounds of the form [Ir(pbt)2(LX)], where pbt is 2-phenylbenzothiazole and LX is a beta-diketonate ligand. In particular, we investigate the effects of trifluoromethylation on compound solubility and photophysics compared to the parent acetylacetonate (acac) version. The NLO properties, such as the singlet and triplet excited-state cross sections, of these compounds were measured using the Z-scan technique. The excited-state lifetimes were determined from visible transient absorption spectroscopy.

Paper Details

Date Published: 25 August 2017
PDF: 8 pages
Proc. SPIE 10360, Light Manipulating Organic Materials and Devices IV, 1036004 (25 August 2017); doi: 10.1117/12.2272715
Show Author Affiliations
Michael J. Ferry, U.S. Army Research Lab. (United States)
Ryan M. O'Donnell, U.S. Army Research Lab. (United States)
Neal Bambha, U.S. Army Research Lab. (United States)
Trenton R. Ensley, U.S. Army Research Lab. (United States)
William M. Shensky III, U.S. Army Research Lab. (United States)
Jianmin Shi, U.S. Army Research Lab. (United States)


Published in SPIE Proceedings Vol. 10360:
Light Manipulating Organic Materials and Devices IV
Manfred Eich; Jean-Michel Nunzi; Jon A. Schuller; Joy E. Haley, Editor(s)

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