Substituent effects on the aggregation-induced emission and two-photon absorption properties of triphenylamine–dibenzo[a,c]phenazine adducts

2017 ◽  
Vol 1 (7) ◽  
pp. 1396-1405 ◽  
Author(s):  
Ji Yang ◽  
Yuting Gao ◽  
Tao Jiang ◽  
Wen Liu ◽  
Chenchen Liu ◽  
...  
Keyword(s):  
Substituent Effects ◽  
Photon Absorption ◽  
Absorption Properties ◽  
Aggregation Induced Emission ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Combined Features

Non-substituted and alkyl-substituted triphenylamine–dibenzo[a,c]phenazine adducts (Q1–Q3) showed the combined features of ICT plus AEE, while the alkoxy-substituted Q4–Q5 exhibited obvious AIE effects.

SUBSTITUENT EFFECT ON TWO-PHOTON ABSORPTION PROPERTIES OF FLUORENE DERIVATIVES

2004 ◽  
Vol 13 (03n04) ◽  
pp. 475-479 ◽  
Author(s):  
JUN KAWAMATA ◽  
MASAHARU AKIBA ◽  
YOSHIO INAGAKI ◽  
TAKEHARU TANI ◽  
AKINORI HARADA
Keyword(s):  
Cross Sections ◽  
Substituent Effect ◽  
Femtosecond Pulse ◽  
Substituent Effects ◽  
Photon Absorption ◽  
Absorption Properties ◽  
Two Photon Absorption ◽  
Ti:Sapphire Laser ◽  
Two Photon ◽  
The Relationship

Two novel fluorene derivatives having cationic substituents were synthesized. Two-photon absorption (TPA) properties of the derivatives were evaluated using the fluorescence-based technique with a femtosecond pulse emitted from a Ti:sapphire laser. Maximum TPA cross-sections of the compounds were estimated from the TPA spectra. Based on the results, the relationship between the TPA cross-sections and the substituent effects of the derivatives were discussed.

Two-photon absorption properties of substituted porphyrins

2006 ◽  
Vol 10 (03) ◽  
pp. 160-166 ◽  
Author(s):  
Liang Shen ◽  
Xiaomei Wang ◽  
Bo Li ◽  
Wanli Jiang ◽  
Ping Yang ◽  
...  
Keyword(s):  
Cross Section ◽  
Nonlinear Optical ◽  
Optical Transmission ◽  
Substituent Effects ◽  
Sapphire Laser ◽  
Photon Absorption ◽  
Molecular Architecture ◽  
Absorption Properties ◽  
Two Photon Absorption ◽  
Two Photon

The two-photon absorption (TPA) properties of two newly synthesized substituted porphyrins: 5,10,15,20-tetra-(4-pyrrolidinylphenyl)porphyrin (1) and 5,10,15,20-tetra-(4-diphenylamino-benzoic acid phenyl) porphyrin ester (3) were measured by the femtosecond Z-scan technique at 800 nm Ti : sapphire laser and by direct nonlinear optical transmission (NLT) using nanosecond Nd : YAG laser. The substituent effects, pumped wavelength and the environment upon the molecular TPA cross-section were investigated. It is found that the TPA cross-section for 3 is enhanced under excitation of 800 nm, relative to its precursor, 5,10,15,20-tetra(4-hydroxyphenyl) porphyrin (2), due to the former possessing extension conjugation of "D-A-core-A-D" molecular architecture. Also sample 3 obtained an increased TPA cross-section in rigid film relative to that in solution, suggesting that the enhancement is facilitated by the quasi-planar structure which allows direct interbranch conjugation throughout the molecule.

Aggregation-Induced Emission and Large Two-Photon Absorption Cross-Sections of Diketopyrrolopyrrole (DPP) Derivatives

2012 ◽  
Vol 65 (4) ◽  
pp. 387 ◽  
Author(s):  
Bing Wang ◽  
Nannan He ◽  
Bo Li ◽  
Shuangying Jiang ◽  
Yi Qu ◽  
...  
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Photon Absorption ◽  
Attractive Alternative ◽  
Absorption Properties ◽  
Intramolecular Vibration ◽  
Symmetrical Structure ◽  
Aggregation Induced Emission ◽  
Two Photon Absorption ◽  
Two Photon

In this work, a new series of triphenylamine-based diketo-pyrrolo-pyrrole (DPP) compounds (DPP-I, DPP-II, DPP-III) have been designed and synthesized by a concise route. Their one- and two-photon absorption properties have been investigated. It was found that DPP-based compounds are very weakly fluorescent in THF solution, but their intensities are increased by almost 29, 9, and 24 times in water/THF (v/v 90 %) mixtures, respectively, in which they exhibit a strongly enhanced red fluorescence. The result indicates that the intramolecular vibration and rotation of these dyes is considerably restricted in nano-aggregates formed in water/THF mixtures, which leads to significant increases in fluorescence. The two-photon absorption (2PA) cross-sections measured by the open aperture Z-scan technique were determined to be 188, 275 and 447 GM for DPP-I, DPP-II, and DPP-III, respectively; DPP-III with the symmetrical structure shows the highest value of 2PA cross-section. The excellent properties of aggregation-induced emission (AIE) and 2PA provide an attractive alternative for the biophotonic materials.

Theoretical Investigation on the One- and Two-photon Absorption Properties of Porphyrin-thiophene Chromophores

2009 ◽  
Vol 27 (7) ◽  
pp. 1269-1279 ◽  
Author(s):  
Wenchao LI ◽  
Jikang FENG ◽  
Aimin REN ◽  
Xiangbiao ZHANG ◽  
Chiachung SUN
Keyword(s):  
Theoretical Investigation ◽  
Photon Absorption ◽  
Absorption Properties ◽  
Two Photon Absorption ◽  
Two Photon ◽  
The One

Synthesis and Two-Photon Absorption Properties of 9,10-Bis(arylethynyl)anthracene Derivatives

2004 ◽  
Vol 16 (14) ◽  
pp. 2783-2789 ◽  
Author(s):  
Wen Jun Yang ◽  
Chang Ho Kim ◽  
Mi-Yun Jeong ◽  
Seung Kyu Lee ◽  
Ming Jun Piao ◽  
...  
Keyword(s):  
Photon Absorption ◽  
Absorption Properties ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Anthracene Derivatives

Theoretical study of two-photon absorption properties of a series of tetra-paracyclophane derivatives

2005 ◽  
Vol 756 (1-3) ◽  
pp. 133-141 ◽  
Author(s):  
Xiang-Biao Zhang ◽  
Ji-Kang Feng ◽  
Ai-Min Ren ◽  
Chia-Chung Sun
Keyword(s):  
Theoretical Study ◽  
Photon Absorption ◽  
Absorption Properties ◽  
Two Photon Absorption ◽  
Two Photon
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