Extending the Bandwidth of Reverse Saturable Absorption in Platinum Complexes Using Two-Photon-Initiated Excited-State Absorption

被引：36

作者：

Zhang, Bingguang ^{[1
]}

Li, Yunjing ^{[1
]}

Liu, Rui ^{[1
]}

Pritchett, Timothy M. ^{[2
]}

Haley, Joy E. ^{[3
]}

Sun, Wenfang ^{[1
]}

机构：

[1] N Dakota State Univ, Dept Chem & Biochem, Fargo, ND 58108 USA

[2] USA, Res Lab, AMSRD SEE M, Adelphi, MD 20783 USA

[3] USAF, Mat & Mfg Directorate, Res Lab, Dayton, OH 45433 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2013年 / 5卷 / 03期

基金：

美国国家科学基金会;

关键词：

platinum(II) terpyridine complex; photophysics; excited-state absorption; two-photon absorption; reverse saturable absorption; nonlinear absorbing materials; TRIPLET-TRIPLET ABSORPTION; 2-PHOTON ABSORPTION; OPTICAL NONLINEARITIES; ORGANIC-MOLECULES; CROSS-SECTION; PHOTOPHYSICS; LUMINESCENCE; DERIVATIVES; ACETYLIDES; DESIGN;

D O I：

10.1021/am3018724

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Pt(II) complexes bearing 4-(7-(benzothiazol-2'-yl)-9,9-diethylfluoren-2-yl)-2,2':6',2 ''-terpyridine or 4-(7-(benzothiazol-2'-yl)-9,9-diethylfluoren-2-yl)ethynyl-2,2':6',2 ''-terpyridine ligand exhibit strong reverse saturable absorption in the visible spectral region and large two-photon initiated excited-state absorption in the near-IR region. They are promising broadband nonlinear absorbing materials from the visible to the near-IR region. The extended pi-conjugation in complex 2 that has a C C linker between the terpyridine ligand and the 4-(7-(benzothiazol-2'-yl)-9,9-diethylfluoren-2-yl) substituent significantly increases the two-photon absorption cross sections (sigma(2)), making it among the strongest of two-photon absorbing Pt(II) complexes.

引用

页码：565 / 572

页数：8

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