Investigation of Energy Transfer between CdTe Nanocrystals on Polystyrene Beads and Dye Molecules for FRET-SNOM Applications†

2004 ◽  
Vol 108 (38) ◽  
pp. 14527-14534 ◽  
Author(s):  
Felix Müller ◽  
Stephan Götzinger ◽  
Nikolai Gaponik ◽  
Horst Weller ◽  
Jürgen Mlynek ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Dye Molecules ◽  
Polystyrene Beads ◽  
Cdte Nanocrystals

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.

scholarly journals Optical decomposition of DNA gel and modification of object mobility on micrometre scale

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Suguru Shimomura ◽  
Takahiro Nishimura ◽  
Yusuke Ogura ◽  
Jun Tanida
Keyword(s):  
Thermal Energy ◽  
Dna Sequences ◽  
Biomedical Applications ◽  
State Transitions ◽  
Dye Molecules ◽  
Radiative Relaxation ◽  
Polystyrene Beads ◽  
Object Mobility ◽  
Detection Of Biomolecules ◽  
Viscosity Changes

AbstractDNA gels can be engineered to exhibit specific properties through the choice of DNA sequences and modification with dye molecules, and can therefore be useful in biomedical applications such as the detection of biomolecules. State transitions of DNA gels on the micrometre scale can generate a viscosity gradient, which can be used to modify the mobility of micrometre-sized objects. In this paper, we propose a method for changing the viscosity of DNA gels using optical decomposition. The use of light allows for decomposition on the micrometre scale, which can be used to achieve patterned viscosity changes within DNA gels. Decomposition was induced by thermal energy released through non-radiative relaxation of excited quenchers. We demonstrated the decomposition of DNA gels in response to irradiation patterns on the micrometre scale. In addition, as a result of changes in DNA gel viscosity due to decomposition, the mobility of polystyrene beads was shown to increase. This technique could provide a new optical approach for controlling the mobility of micrometre-sized objects.

scholarly journals Energy Transfer from Perovskite Nanocrystals to Dye Molecules Does Not Occur by FRET

Nano Letters ◽  
2019 ◽  
Vol 19 (12) ◽  
pp. 8896-8902 ◽  
Author(s):  
Felix J. Hofmann ◽  
Maryna I. Bodnarchuk ◽  
Dmitry N. Dirin ◽  
Jan Vogelsang ◽  
Maksym V. Kovalenko ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Dye Molecules ◽  
Perovskite Nanocrystals

Energy transfer and electronic interactions between dye molecules at an interface

1981 ◽  
Vol 24-25 ◽  
pp. 773-776 ◽  
Author(s):  
S. Garoff ◽  
R.B. Stephens ◽  
C.D. Hanson ◽  
G.K. Sorensen
Keyword(s):  
Energy Transfer ◽  
Dye Molecules ◽  
Electronic Interactions

Ab Initio Study of Excitation Energy Transfer between Quantum Dots and Dye Molecules

2009 ◽  
Vol 113 (18) ◽  
pp. 7548-7552 ◽  
Author(s):  
Hiroyuki Tamura ◽  
Jean-Maurice Mallet ◽  
Martin Oheim ◽  
Irene Burghardt
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Excitation Energy ◽  
Ab Initio ◽  
Excitation Energy Transfer ◽  
Dye Molecules ◽  
Ab Initio Study
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