The morphologies and fluorescence quantum yields of perylene diimide dye-doped PS and PHVB microspheres

Chen, Jia; Jia, Shuoxun; Ji, Xiaohuan; Nourrein, Mohamed; Zhu, Zhe; Wang, Chien‐Lung; Sun, Bin

doi:10.1039/c8ra04158j

Cited by 5 publications

(5 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, the aromatic groups in C 12 -PDI-C 12 are tightly and extended associated, because the intensity appears to be much weaker with an emission peak appearing at a longer wavelength (660 nm) . The difference in the packing of the aromatic groups in the two molecules is attributed to the steric hindrance of the bulky POSS groups in POSS-PDI-POSS, , which is supported by the simulation of molecules in colloidal particles (Figure S5).…”

Section: Results and Discussionmentioning

confidence: 99%

“…Aggregation of hydrophobic molecules with steric hindrance may create cavities, which are possible to trap water during the aqueous self-assembly for colloidal stability. − POSS-PDI-POSS is a molecule with shape anisotropy (Scheme a) , in which POSS (polyhedral oligomeric silsesquioxanes) is a three-dimensional cube with diameter of ∼1 nm and the conjugated plate of PDI (perylene diimide) is a two-dimensional structure. The aromatic PDI derivatives tend to associate into extended stacks via strong π–π interactions, but the steric repulsion between the POSS groups limits this extension and only dimers of POSS-PDI-POSS are formed in solid state.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Aqueous Self-Assembly of Hydrophobic Molecules Influenced by the Molecular Geometry

Chen

Zheng

et al. 2022

J. Phys. Chem. B

Self Cite

View full text Add to dashboard Cite

Water, in addition to acting as a solvent, plays a constructional role in aqueous self-assembly. The hydrophobic molecule of POSS-PDI-POSS (POSS = polyhedral oligomeric silsesquioxanes, PDI = perylene diimide) has a shape anisotropy in which POSS is a ball-like bulky group and PDI is a flat aromatic group. The self-assembly of this molecule in water created assemblies with inner spaces due to the steric effect, which suppressed aromatic interactions of PDI and trapped water for the colloidal stability. By replacing POSS with dodecyl (C12), C12-PDI-C12 aggregated with extended aromatic interaction of PDI and less inner water. The resulting aggregates tended to agglomerate and precipitate. This discovery extended the scope of aqueous self-assembly by using the building blocks without amphiphilicity and created knowledge for biophysics.

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Aqueous Self-Assembly of Hydrophobic Molecules Influenced by the Molecular Geometry

Chen

Zheng

et al. 2022

J. Phys. Chem. B

Self Cite

View full text Add to dashboard Cite

show abstract

“…The incorporation of chromophores into silica via chemical binding has been studied. [29] After encapsulation, both absorption and emission spectra are identical to those of free chromophores; however, photostability and quantum yield have been improved. Here, we successfully introduced a novel strategy for the development of fluorescent nanofibrous materials via electrospinning of chromophore-doped cellulose.…”

Section: Introductionmentioning

confidence: 99%

Preparation of cellulose‐based electrospun fluorescent nanofibres doped with perylene encapsulated in silica nanoparticles for potential flexible electronics

2021

View full text Add to dashboard Cite

Novel fluorescent nanofibres were developed via the electrospinning of chromophore-doped cellulose. Two different perylene-doped cellulose fluorescent fibres were fabricated using cellulose as a host material and perylene dye derivatives as active dopants. Fluorescent cellulose nanofibres were prepared via the electrospinning technique using two different perylene dyes, including perylene diimide and perylene mono-imide sodium/potassium salts. The generated fluorescent silica nanoparticles exhibited diameters varying in the range 80-180 nm. The generated electrospun fluorescent nanofibrous structures displayed smooth surfaces with average diameters of 200-300 nm for cellulose comprising perylene diimide and sodium/potassium salts of perylene mono-imide dyes, respectively, dispersed uniformly in the cellulose matrix. The generated fluorescent nanoparticles and nanofibres were characterized by different standard methods, including scanning electron microscopy (SEM), transmission electron microscopy (TEM), fluorescent optical microscope (FOM) and Fourier-transform infrared spectra (FT-IR). The fluorescence properties of the fabricated cellulose nanofibres were explored. Those fluorescent nanofibres pave the way for the development of promising textile fluorescence materials, such as flexible displays, photonics, and optical devices.

show abstract

“…Consequently, due to the π→π* conjugated electronic structure of natural dye and the semiconducting behaviour of polymers, many works have exploited the dye and/or polymer in different applications [43][44][45][46]. Mixing dye-doped polymers present an extremely efficient material combination that have been employed widely as [47][48][49] and considered promising candidates in photo-physical properties [50][51][52][53][54]. Research on the preparation of new materials, which observe and develop semiconducting and optoelectronic materials, is effectively important.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Absorption Edge of Anchusa-Italica-Doped Pentacene towards Optoelectronic Applications

Alaridhee

Malk

Hussein

et al. 2020

MSF

View full text Add to dashboard Cite

The dye-doped polymer is commonly used in the field of optoelectronics, given its effectiveness in optimising the device’s performance. This study is devoted to the synthesis and characterisation of Anchusa-Italica-doped Pentacene thin-film. Scanning electronic microscopy structural analysis, Fourier transform spectroscopy, and UV-visible transmittance spectra with a range of 300-900 nm were also carried out. The fundamental optical properties such as the absorption coefficient, optical energy gap, absorption and refractive indices were calculated based on the methods already used in the literature as Tauc’s relationship. The morphology of the samples indicated that dye structure was affected in the doped pentacene. The Fourier transform infrared technique (FT-IR) resulting spectrum of the doped samples also showed a significant absorption peak corresponding to C-H as an index of impurities. The calculated band-gap energy of the impurity sample was reduced and was the lowest compared to both the pure dye and polymer samples. The optical absorption and transmittance spectra revealed that it was positioned in the desirable ranges for optoelectronic applications. An anomaly in the absorption index was also observed through excitation of the resonance mode with transparent indication. This effect was deduced from the calculation of the refractive index. The results presented in this paper significantly contribute to the developments in the field of optoelectronic devices based on dye/polymer organic materials.

show abstract

The morphologies and fluorescence quantum yields of perylene diimide dye-doped PS and PHVB microspheres

Abstract: A POSS functionalized perylene diimide (PDI) derivative, PPP, is applied to polymer microspheres as a red fluorophore. Hollow PPP/polystyrene microspheres show a fluorescence quantum yield (ΦF) of nearly unity.

Cited by 5 publications

References 27 publications

Aqueous Self-Assembly of Hydrophobic Molecules Influenced by the Molecular Geometry

Aqueous Self-Assembly of Hydrophobic Molecules Influenced by the Molecular Geometry

Preparation of cellulose‐based electrospun fluorescent nanofibres doped with perylene encapsulated in silica nanoparticles for potential flexible electronics

Enhanced Absorption Edge of Anchusa-Italica-Doped Pentacene towards Optoelectronic Applications

Contact Info

Product

Resources

About