scholarly journals Spectral-kinetic properties of YF3-CeF3: Eu3+/Tb3+ nanoparticles as possible sensitizers of PDT dyes

2019 ◽  
Vol 220 ◽  
pp. 03022
Author(s):  
Eduard Madirov ◽  
Alexey Nizamutdinov ◽  
Elena Lukinova ◽  
Maxim Pudovkin ◽  
Daria Andreeva ◽  
...  
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Kinetic Properties ◽  
Dye Molecules ◽  
Transfer Coefficients

Optical properties of crystalline CeF3-YF3 nanoparticles doped with Eu3+ or Tb3+ ions were studied. The energy transfer coefficients from Ce3+ to the doping ions were estimated. As well as this, conjugation of nanoparticles and dye molecules using polyethyleneimine was tested. The energy transfer from the nanoparticles to dye molecules was studied.

scholarly journals Tuning resonance energy transfer with magneto-optical properties of graphene

2021 ◽  
Vol 103 (17) ◽  
Author(s):  
P. P. Abrantes ◽  
G. Bastos ◽  
D. Szilard ◽  
C. Farina ◽  
F. S. S. Rosa
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Resonance Energy Transfer ◽  
Resonance Energy

Tuning Optical Properties of Nitrogen-Doped Carbon Dots Through Fluorescence Resonance Energy Transfer Using Rhodamine B for Ratiometric Sensing of Mercury ion

2021 ◽  
Author(s):  
Alagan Muthurasu ◽  
V GANESH
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Rhodamine B ◽  
Carbon Dots ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Nitrogen Doped ◽  
Physical Chemical ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Carbon dots (CDs) exhibiting fluorescence property are generally derived from carbonaceous materials and possessing ultra small size with various exciting physical, chemical and photo-properties that have been used in many...

Energy Transfer from a Single Semiconductor Nanocrystal to Dye Molecules

ACS Nano ◽  
2014 ◽  
Vol 8 (7) ◽  
pp. 7060-7066 ◽  
Author(s):  
Zheng Hua ◽  
Qinfeng Xu ◽  
Xiangnan Huang ◽  
Chunfeng Zhang ◽  
Xiaoyong Wang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Dye Molecules ◽  
Semiconductor Nanocrystal

scholarly journals Impact of nanosizing a host matrix based on a metal–organic framework on solid-state fluorescence emission and energy transfer

2022 ◽  
Author(s):  
Hikaru Sakamoto ◽  
Akitaka Ito ◽  
Masataka Ohtani
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Metal Organic Framework ◽  
Fluorescence Emission ◽  
Dye Molecules ◽  
Host Matrix ◽  
Metal Organic ◽  
Solid State Fluorescence ◽  
Organic Framework

We demonstrate that the nanosize effect appears to affect the properties of dye molecules encapsulated in the pores of a metal–organic framework (dye@MOF). The emissive properties of the nanosized dye@MOF...

scholarly journals Динамика термолюминесценции при двойном лазерном Vis-IR возбуждении молекул эозина с кислородом и наночастицами серебра в пленке поливинилбутираля

2019 ◽  
Vol 126 (2) ◽  
pp. 126
Author(s):  
Е.И. Константинова ◽  
Б.Ф. Минаев ◽  
А.В. Цибульникова ◽  
Р.Ю. Боркунов ◽  
М.В. Царьков ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Energy Transfer ◽  
Vibrational Energy ◽  
Molecular Complexes ◽  
Polyvinyl Butyral ◽  
Dye Molecules ◽  
Temperature Conductivity ◽  
Transfer Processes ◽  
Vibrational Energy Distribution ◽  
532 Nm

AbstractElectronic and vibrational energy transfer processes taking place in molecular complexes in a polymer are investigated under dual-wavelength (visible at λ = 532 nm and IR at wavelength λ = 10.6 μm) laser photoexcitation of eosin molecules ( С = 4 × 10^–4 М) in air and without it ( р ≈ 10^–4 Torr) in thin polyvinyl butyral (PVB) films containing silver nanoparticles ( R ≈ 36 nm) prepared by laser ablation. Generation of singlet oxygen, singlet–triplet annihilation, and enhancement of plasmon quenching of dye fluorescence are studied. Thermal-energy transfer processes in thin PVB films following pulsed IR excitation are simulated, and the temperature conductivity coefficients of the polymer films in the presence of silver nanoparticles are calculated. Low-temperature processes in PVB films containing dye molecules taking place after IR excitation are investigated, and the mechanism for accelerating intercombination S _1 → Т _1 transitions as a result of thermal heating and intramolecular vibrational-energy distribution is explained.

POLARIZATION PROPERTIES OF SYNCHROTRON RADIATION IN THE STUDY OF ANISOTROPIC INSULATING CRYSTALS

2002 ◽  
Vol 09 (01) ◽  
pp. 469-472
Author(s):  
V. N. KOLOBANOV ◽  
I. A. KAMENSKIKH ◽  
V. V. MIKHAILIN ◽  
I. N. SHPINKOV ◽  
D. A. SPASSKY ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Energy Transfer ◽  
Synchrotron Radiation ◽  
Valence Band ◽  
Conduction Band ◽  
Electronic States ◽  
Absorption Region ◽  
New Information ◽  
Fundamental Absorption Region

The optical properties of a wide series of the tungstates with the scheelite and wolframite crystal structure at the threshold of the fundamental absorption region were studied. New information about the influence of the electronic states forming the bottom of the conduction band and the top of the valence band on the formation of emission centers and mechanisms of energy transfer to these centers was obtained.

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