Aggregation induced emission enhancement of pyrene-appended Schiff base luminophore and its photovoltaic effect

Panda, Uttam; Roy, Suman; Mallick, Debashis; Dalapati, Pradip; Biswas, Subir; Manik, Nabin Baran; Bhattacharyya, Arindam; Sinha, Chittaranjan

doi:10.1016/j.jlumin.2016.02.007

Cited by 6 publications

(3 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…When methanol was added into the THF solution of poly( 1 20 - b - 2e 40 ), the copolymers aggregated with each other. Then the intramolecular rotation of pyrene moieties on PPI blocks was restricted, and AIE of PPI segments happened, leading to the increase of emission intensity at ∼394 nm. , As for the P3HT block, because of the π–π stacks, ACQ of P3HT segments occurred, resulting in the decrease of emission intensity at ∼575 nm. Therefore, the copolymer poly( 1 20 - b - 2e 40 ) presented both AIE and ACQ properties.…”

Section: Resultsmentioning

confidence: 99%

A Facile Synthetic Route to Multifunctional Poly(3-hexylthiophene)-b-poly(phenyl isocyanide) Copolymers: From Aggregation-Induced Emission to Controlled Helicity

Liu

et al. 2018

Macromolecules

View full text Add to dashboard Cite

New synthetic methods are of great significance in enabling access to valuable compounds and materials. Although conjugated poly(3-hexylthiophene) (P3HT) has been widely investigated, P3HT copolymers containing functional groups (such as amino, imino, hydroxyl, etc.) are rarely reported because of inherent synthetic difficulties. Here P3HT copolymers bearing diverse functional pendants, which cannot be obtained by the direct block copolymerization of the corresponding monomers, were designed and facilely synthesized through the postpolymerization modification method. First, P3HT-b-poly(phenyl isocyanide) (P3HT-b-PPI) with pentafluorophenyl (PFP) ester was prepared in one-pot using Ni(dppp)Cl 2 as the catalyst. Then, through the postpolymerization modification of the copolymer with alcohols and amines, P3HT-b-PPIs copolymers bearing defined functional groups were facilely obtained. The introduction of functional pendants endowed P3HT-b-PPIs copolymers with diverse functionalities. When pyrene pendants were introduced into PPI block, the obtained copolymer presented both aggregation-induced emission (AIE) and aggregation-caused quenching (ACQ) properties when methanol was added into its THF solution. As for the copolymer containing chiral pendants, an excess of right-handed helix of the PPI backbone was induced after annealing in toluene at 100 °C for 7 days, and left-handed helical bundles were formed by the self-assembly of the annealed copolymer in THF. Meanwhile, the copolymer containing PEG pendants was amphiphilic and could self-assembled into worm-like or spherical structures in different solutions. In addition, cross-linked P3HT-b-PPI was obtained after postpolymerization modification of P3HT-b-PPI copolymer with glycol.

show abstract

Section: Resultsmentioning

confidence: 99%

A Facile Synthetic Route to Multifunctional Poly(3-hexylthiophene)-b-poly(phenyl isocyanide) Copolymers: From Aggregation-Induced Emission to Controlled Helicity

Liu

et al. 2018

Macromolecules

View full text Add to dashboard Cite

show abstract

“…The emission enhancement of uorophores in the aggregated state has become an application-driven requirement to enhance material emission performance due to their wide applications in photovoltaic cells, light-emitting devices, optical sensors and biological uorescent probes. [1][2][3][4][5] In this respect, a variety of methodologies have been developed to avoid the formation of delocalized excitons or strong p-p stacking between conventional aggregation-caused quenching (ACQ) uorophores, such as the utilization of a micellar nanosystem or a metal nanostructure, the formation of J-type or H-type aggregate and the alkyl substituent-mediated crystal packing. [6][7][8][9][10][11][12] Recently, a unique aggregation-induced emission (AIE) phenomenon was discovered by Tang and his co-workers, providing an effective approach to enhance the emission response of dened uorophores in aggregated state.…”

Section: Introductionmentioning

confidence: 99%

Emission enhancement of GFP chromophore in aggregated state via combination of self-restricted effect and supramolecular host–guest complexation

Deng

et al. 2017

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Schiff bazları ve schiff bazı kompleksleri gerek sentezde gerekse medikal alanda geniş bir şekilde kullanılmaktadır (Çay, Köse et al 2015, Gao, Lv et al 2015, Pradeep Kumar, Tejaswi et al 2015, Shakir, Abbasi et al 2015, Xu, Mao et al 2015, Abdel-Kader, El-Ansary et al 2016, de Toledo, da Costa et al 2016, Mahlooji, Behzad et al 2016. Bu bileşik sınıfının genel kullanım alanları arasında ışık emisyon diyot (LED) (Taghi Sharbati, Soltani Rad et al 2011, García-López, Muñoz-Flores et al 2014, Panda, Roy et al 2016) ve kemosensör özellikleri de vardır (Ghosh, Kumar et al 2016, Wan, Shu et al 2016, Wang, Ma et al 2016. Bileşiklerin çözücü içindeki davranışlarını incelemek için çeşitli spektral yöntemler kullanılmaktadır.…”

Section: Introductionunclassified

Synthesis Characterization Schiff Base Compounds Containing 4-Cyano Group and Theoretical Calculations

Yilmaz¹

2016

AKU-J. Sci. Eng.

View full text Add to dashboard Cite

ÖzetBu çalışmada üç adet schiff bazı bileşik sentezlenmiştir. Sentezlenen bileşiklerin karakterizasyonları FT-IR, NMR ve Uv-görünür bölge spektroskopisi yöntemleri ile yapılmıştır. Sentezlenen bileşiklerin aseton, 1,4-dioksan ve dimetilsülfoksit çözücülerinde UV-görünür bölge içerisindeki davranışları incelendi. Çalışmanın son aşamasında ise bileşiklere ait teorik hesaplamalar Gaussian 09 yazılımı ile yapılmıştır. Synthesis Characterization Schiff Base Compounds Containing 4-Cyano Group and Theoretical CalculationsKeywords Schiff Base; 4-Cyano; Gaussian 09; Solvent Effect AbstractIn this study, three schiff base compounds were synthesized. Charecterizations of compounds were made IR, NMR and Uv-vis spectrometers methods. The behavior of the synthesized compounds were investigated in acetone, 1,4-dioxane and dimethylsulfoxide solvents the UV-visible region. Finally, theoretical calculations were made Gaussian 09 software. © Afyon Kocatepe Üniversitesi

show abstract

Aggregation induced emission enhancement of pyrene-appended Schiff base luminophore and its photovoltaic effect

Cited by 6 publications

References 33 publications

A Facile Synthetic Route to Multifunctional Poly(3-hexylthiophene)-b-poly(phenyl isocyanide) Copolymers: From Aggregation-Induced Emission to Controlled Helicity

A Facile Synthetic Route to Multifunctional Poly(3-hexylthiophene)-b-poly(phenyl isocyanide) Copolymers: From Aggregation-Induced Emission to Controlled Helicity

Emission enhancement of GFP chromophore in aggregated state via combination of self-restricted effect and supramolecular host–guest complexation

Synthesis Characterization Schiff Base Compounds Containing 4-Cyano Group and Theoretical Calculations

Contact Info

Product

Resources

About