| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
|
|
|
|
Two-Photon Fluorescence Properties and Ultrafast Responses of a Hyperbranched Diketo-Pyrrolo-Pyrrole Polymer with Triphenylamine as the Core |
| WANG Yao-Chuan1,2**, JIANG Yi-Hua3, WANG Gui-Qiu1, LIU Da-Jun1**, LI Bo4**, HUA Jian-Li3 |
1Department of Physics, Dalian Maritime University, Dalian 110626
2State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024
3Lab for Advanced Materials, Department of Chemistry, East China University of Science and Technology, Shanghai 200237
4Department of Electronic Engineering, East China Normal University, Shanghai 200241
|
|
| Cite this article: |
|
WANG Yao-Chuan, JIANG Yi-Hua, WANG Gui-Qiu et al 2015 Chin. Phys. Lett. 32 048201 |
|
|
|
|
Abstract The two-photon fluorescence properties and ultrafast responses of a hyperbranched polyyne (hb-DPP-J2) with triphenylamine as the central core, Diketo-Pyrrolo-Pyrrole as the connecting unit and electron acceptor are studied. The polymer has a D-π-A-π-D conjugated structure along the extended polyyne π-bridge systems, and the effective conjugated unit repeats itself in the whole hyperbranched polymer chain. The polymer exhibits a large two-photon absorption cross section and high fluorescence quantum yields. The ultrafast dynamic results give a deep understanding of the excited energy transfer processes under excitation, and reveal a long relaxation lifetime of the intramolecular charge transfer (ICT) state.
|
|
|
Received: 29 December 2014
Published: 30 April 2015
|
|
| PACS: |
82.53.Uv
|
(Femtosecond probes of molecules in liquids)
|
| |
33.80.Rv
|
(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
|
| |
42.65.Re
|
(Ultrafast processes; optical pulse generation and pulse compression)
|
|
|
|
|
|
[1] Lin T C et al 2009 J. Mater. Chem. 19 7075
[2] Xia H et al 2010 Adv. Mater. 22 3204
[3] Pudavar H E et al 1999 Appl. Phys. Lett. 74 1338
[4] Bhawalkar J D et al 1996 Opt. Commun. 124 33
[5] Belfield K D and Schafer K J 2002 Chem. Mater. 14 3656
[6] Bhaskar A, Ramakrishna G, Lu Z and Twieg R 2006 J. Am. Chem. Soc. 128 11840
[7] Li F M, Meng F S, Feng W K, Wang S F, Tian H and Gong Q H 2010 Chin. Phys. Lett. 27 068202
[8] Wang Y C, Zhou H, Ding J L, Chen Q, Xiao H B, Tao X M and Qian S X 2010 Chin. Phys. Lett. 27 038201
[9] Jiang Y H, Wang Y C, Hua J L, Qu S Y, Qian S X and Tian H 2009 J. Polym. Sci. Part A: Polym. Chem. 47 4400
[10] Sheik-Bahae M, Said A A, Wei T H, Hagan D J and Stryland Van 1990 IEEE J. Quantum Electron. 26 760
[11] Mi J, Guo L J, Liu W M, You G J and Qian S X 2003 Phys. Lett. A 310 486
[12] Wu L Z, Tang X J, Jiang M H and Tung C H 1999 Chem. Phys. Lett. 315 379
[13] Huang C H, Li F Y and Huang Y Y 2001 Ultrathin Films for Optics and Electronics (Beijing: Peking University Press)
[14] Hohenau A, Cagran C, Kranzelbinder G, Scherf U and Leising G 2001 Adv. Mater. 13 1303
[15] Li B, Tong R, Zhu R Y, Hua J L, Tian H and Qian S X 2006 J. Lumin. 119 116
[16] Toele P, Van Gorp J J and Glasbeek M 2005 J. Phys. Chem. A 109 10479
[17] Wang Y C, Huang J, Zhou H, Ma G H, Qian S X and Zhu X H 2012 Dyes Pigm. 92 573
[18] He X, Liu Y Q, Du X, Yang Y Q, Xu B, Tian W J and Ma Y G 2011 Chem. Phys. Lett. 501 296
[19] Li B, Tong R, Zhu R Y, Meng F S, Tian H and Qian S X 2005 J. Phys. Chem. B 109 10705 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
