Synthesis and third-order optical nonlinearity in two-dimensional A-π-D-π-A carbazole-cored chromophores

被引：27

作者：

Qian, Y ^{[1
]}

Xiao, GM

Wang, G

Sun, YM

Cui, YP

Yuan, CW

机构：

[1] SE Univ, Dept Chem & Chem Engn, Nanjing 210096, Peoples R China

[2] SE Univ, Natl Lab Mol & Biomol Elect, Nanjing 210096, Peoples R China

[3] SE Univ, Dept Elect Engn, Nanjing 210096, Peoples R China

来源：

DYES AND PIGMENTS | 2006年 / 71卷 / 02期

关键词：

third-order optical nonlinearity; Z-scan technique; two-dimensional chromophores; carbazole derivatives;

D O I：

10.1016/j.dyepig.2005.06.015

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Novel A-pi-D-pi-A carbazole-cored chromophores were synthesized and characterized by NMR, IR, UV techniques. The third-order NLO properties of the carbazole chromophores were investigated. The measurements of second-order hyperpolarizabilities were performed using single-beam Z-scan technique with picosecond laser Pulses in DMF solutions. Our results indicate that larger second-order hyperpolarizabilities gamma can be readily obtained in such carbazole chrornophores because of increasing strength of withdrawing group and molecular conjugation length with two aromatic bridges in the two-dimensional conjugated system. Therefore, it is very probable that the increase in the obtained gamma values considerably arises from the conjugation path of the delocalized electrons for large third-order nonlinear optical effects. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：109 / 117

页数：9

共 25 条

[1] The third-order NLO properties of D-π-A molecules with changing a primary amino group into pyrrole [J].

Audebert, P ;

Kamada, K ;

Matsunaga, K ;

Ohta, K .

CHEMICAL PHYSICS LETTERS, 2003, 367 (1-2) :62-71

[2] Structure-property relationships in nonlinear optical tetraethynylethenes [J].

Bosshard, C ;

Spreiter, R ;

Gunter, P ;

Tykwinski, RR ;

Schreiber, M ;

Diederich, F .

ADVANCED MATERIALS, 1996, 8 (03) :231-&

[3] Photoconductive molecular glasses consisting of twin molecules [J].

Grigalevicius, S ;

Blazys, G ;

Ostrauskaite, J ;

Grazulevicius, J ;

Gaidelis, V ;

Jankauskas, V .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2003, 154 (2-3) :161-167

[4] Two-dimensionally conjugated molecules: The importance of low molecular symmetry for large third-order nonlinear optical effects [J].

Gubler, U ;

Spreiter, R ;

Bosshard, C ;

Gunter, P ;

Tykwinski, RR ;

Diederich, F .

APPLIED PHYSICS LETTERS, 1998, 73 (17) :2396-2398

[5] Synthesis of soluble oligocarbazole derivatives [J].

Hameurlaine, A ;

Dehaen, W .

TETRAHEDRON LETTERS, 2003, 44 (05) :957-959

[6] Preparation and properties of 2,7-linked N-alkyl-9H-carbazole main-chain polymers [J].

Iraqi, A ;

Wataru, I .

CHEMISTRY OF MATERIALS, 2004, 16 (03) :442-448

[7] DESIGN AND CONSTRUCTION OF MOLECULAR ASSEMBLIES WITH LARGE 2ND-ORDER OPTICAL NONLINEARITIES - QUANTUM-CHEMICAL ASPECTS [J].

KANIS, DR ;

RATNER, MA ;

MARKS, TJ .

CHEMICAL REVIEWS, 1994, 94 (01) :195-242

[8] Synthesis of novel carbazole dendrimers having a metal coordination site [J].

Kimoto, A ;

Cho, JS ;

Higuchi, M ;

Yamamoto, K .

CHEMISTRY LETTERS, 2003, 32 (08) :674-675

[9] Application of the Z-scan technique to a saturable photorefractive medium with the overlapped ground and excited state absorption [J].

Kir'yanov, AV ;

Barmenkov, YO ;

Starodumov, AN ;

Leppanen, VP ;

Vanhanen, J ;

Jaaskelainen, T .

OPTICS COMMUNICATIONS, 2000, 177 (1-6) :417-423

[10]

KUHN H, 1992, NONLINEAR OPTICAL MA

← 1 2 3 →