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
收藏
页码：565 / 572
页数：8
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