Fluorescence properties of fluor molecules confined within nanoscale pores in a polymer matrix

2015 ◽  
Vol 5 (2) ◽  
pp. 347-352 ◽  
Author(s):  
Valery N. Bliznyuk ◽  
Ayman F. Seliman ◽  
Scott M. Husson ◽  
George Chumanov ◽  
Timothy A. DeVol
Keyword(s):  
Polymer Matrix ◽  
Fluorescence Properties ◽  
Image Position

Abstract

Investigating structure-fluorescence properties of imidazole fused tetraphenylethylene AIEgens: Reversible mechanofluorochromism and polymer matrix controlled fluorescence tuning

CrystEngComm ◽  
2021 ◽  
Author(s):  
Palaniyappan Nagarasu ◽  
Anu Kundu ◽  
Vijay Thiruvenkatam ◽  
Raghavaiah Pallepogu ◽  
Philip Philip Anthony ◽  
...  
Keyword(s):  
Solid State ◽  
Polymer Matrix ◽  
Fluorescence Properties ◽  
Stimuli Responsive ◽  
Fluorescent Properties ◽  
Imidazole Derivatives

A series of stimuli-responsive AIEgens of tetraphenylethyelene (TPE) fused Imidazole derivatives (1-7) were synthesized and explored their substituents controlled fluorescent properties in the solid state. The structure of the synthesized...

Photophysical Properties of new Polymerizable 1,8-Naphthalimides and their Copolymers with Methylmethacrylate

2003 ◽  
Vol 58 (9-10) ◽  
pp. 558-562
Author(s):  
Ivo Grabchev ◽  
Desislava Staneva
Keyword(s):  
Polymer Matrix ◽  
Phenyl Ring ◽  
Photophysical Properties ◽  
Fluorescence Properties ◽  
Solid Films

In this paper we discuss the photophysical properties of some 4-nitro- and 4-allylamino-N-phenyl- 1,8-naphthalimides having different substituents in the phenyl ring, and their copolymers with methylmethacrylate in solid films. The influence of the substituents at the phenyl ring and the environment (methanol or polymer matrix) on the absorption and fluorescence properties is also discussed.

Fiber-reinforced magneto-polymer matrix composites (FR–MPMCs)—A review

2017 ◽  
Vol 32 (6) ◽  
pp. 1020-1046 ◽  
Author(s):  
Muhammad Musaddique Ali Rafique ◽  
Everson Kandare ◽  
Stephan Sprenger
Keyword(s):  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Image Position

Abstract

scholarly journals Fluorescence properties of pyrene derivative aggregates formed in polymer matrix depending on concentration

2010 ◽  
Vol 12 (36) ◽  
pp. 10923 ◽  
Author(s):  
Fuyuki Ito ◽  
Toshifumi Kakiuchi ◽  
Takeshi Sakano ◽  
Toshihiko Nagamura
Keyword(s):  
Polymer Matrix ◽  
Fluorescence Properties

Simple Identification of Electron Diffraction Ring Patterns

1969 ◽  
Vol 27 ◽  
pp. 160-161
Author(s):  
Carolyn Nohr ◽  
Ann Ayres
Keyword(s):  
Electron Microscope ◽  
Electron Diffraction ◽  
Diffraction Ring ◽  
Image Position

Texts on electron diffraction recommend that the camera constant of the electron microscope be determine d by calibration with a standard crystalline specimen, using the equation

Atomic orientation effects in proton stopping at low velocity

1983 ◽  
Vol 41 ◽  
pp. 708-709
Author(s):  
Kin Lam
Keyword(s):  
Polycrystalline Material ◽  
Charged Particles ◽  
Target Material ◽  
Stopping Power ◽  
Low Velocity ◽  
Electronic Density ◽  
Interatomic Distances ◽  
Frame Work ◽  
Image Position ◽  
Atomic Orientation

The energy of moving ions in solid is dependent on the electronic density as well as the atomic structural properties of the target material. These factors contribute to the observable effects in polycrystalline material using the scanning ion microscope. Here we outline a method to investigate the dependence of low velocity proton stopping on interatomic distances and orientations.The interaction of charged particles with atoms in the frame work of the Fermi gas model was proposed by Lindhard. For a system of atoms, the electronic Lindhard stopping power can be generalized to the formwhere the stopping power function is defined as

A Magnetic Spectrometer for a Scanning Transmission Electron Microscope

1974 ◽  
Vol 32 ◽  
pp. 436-437
Author(s):  
A. Kosiara ◽  
J. W. Wiggins ◽  
M. Beer
Keyword(s):  
Scanning Transmission Electron Microscope ◽  
Magnetic Spectrometer ◽  
Fringe Field ◽  
Curvature Radius ◽  
Magnetic Pole ◽  
Quadrupole Field ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Under Construction ◽  
Image Position

A magnetic spectrometer to be attached to the Johns Hopkins S. T. E. M. is under construction. Its main purpose will be to investigate electron interactions with biological molecules in the energy range of 40 KeV to 100 KeV. The spectrometer is of the type described by Kerwin and by Crewe Its magnetic pole boundary is given by the equationwhere R is the electron curvature radius. In our case, R = 15 cm. The electron beam will be deflected by an angle of 90°. The distance between the electron source and the pole boundary will be 30 cm. A linear fringe field will be generated by a quadrupole field arrangement. This is accomplished by a grounded mirror plate and a 45° taper of the magnetic pole.

Optimizing conditions for x-ray microchemical analysis in analytical electron microscopy

1978 ◽  
Vol 36 (1) ◽  
pp. 548-549 ◽  
Author(s):  
N. J. Zaluzec
Keyword(s):  
Solid Angle ◽  
Analytical Electron Microscopy ◽  
Incident Beam ◽  
Thin Foil ◽  
Experimental Conditions ◽  
X Ray ◽  
Microchemical Analysis ◽  
Analytical Electron ◽  
Image Position ◽  
Incident Beam Energy

The ultimate sensitivity of microchemical analysis using x-ray emission rests in selecting those experimental conditions which will maximize the measured peak-to-background (P/B) ratio. This paper presents the results of calculations aimed at determining the influence of incident beam energy, detector/specimen geometry and specimen composition on the P/B ratio for ideally thin samples (i.e., the effects of scattering and absorption are considered negligible). As such it is assumed that the complications resulting from system peaks, bremsstrahlung fluorescence, electron tails and specimen contamination have been eliminated and that one needs only to consider the physics of the generation/emission process.The number of characteristic x-ray photons (Ip) emitted from a thin foil of thickness dt into the solid angle dΩ is given by the well-known equation

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