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Phenylene Vinylene Platinum(II) Acetylides with Prodigious Two-Photon Absorption
被引:90
作者:
Dubinina, Galyna G.
[1
]
Price, Randi S.
[1
]
Abboud, Khalil A.
[1
]
Wicks, Geoffrey
[2
]
Wnuk, Pawel
[3
]
Stepanenko, Yuriy
[3
]
Drobizhev, Mikhail
[2
]
Rebane, Aleksander
[2
,4
]
Schanze, Kirk S.
[1
]
机构:
[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA
[2] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA
[3] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland
[4] NICPB, EE-12618 Tallinn, Estonia
基金:
美国国家科学基金会;
关键词:
NONLINEAR ABSORPTION;
SINGLET OXYGEN;
CHROMOPHORES;
SPECTROSCOPY;
LUMINESCENCE;
COMPLEXES;
D O I:
10.1021/ja309393c
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The linear and nonlinear optical properties.. of a series of linear and cross-conjugated platinum(II) acetylide complexes that contain extended p-(phenylene vinylene) chromophores are reported. The complexes exhibit very high femtosecond two photon absorption (2PA) cross Section values (sigma(2) up to 10 000 GM), as measured by nonlinear transmission (NLT) and two-photon excited fluorescence (2PEF) methods. The large 2PA cross sections span a broad range of wavelengths, 570-810 nm, and they overlap with the triplet excited. state absorption. Spectral coincidence of high cross section 2PA and triplet absorption is a key feature giving rise to efficient dual-mode optical power limiting (OPL).
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页码:19346 / 19349
页数:4
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