Role of Energy Transfer in Conversion of Light to Electric Energy

Ibrayev, N. Kh.; Seliverstova, E. V.; Aimukhanov, А.К.; Сериков, Т. М.

doi:10.1080/15421406.2013.872827

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…Solar energy is one of the most widespread energy resources on our planet, which far exceeds the total needs of Earth [1]. Solar energy can be converted into electrical energy [2,3], obtain an environmentally friendly and economically profitable fuelhydrogen, and effectively purify water resources from various pollutants [4,5]. In photovoltaic elements based on semiconductors and their sensitizers, the main processes are the absorption of light and its further transformation through photoinduced charge separation at the semiconductor/dye interface [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Influence of Plasmon Effect on the Sensitization of Titanium Dioxide by Dye Molecules

Omarova

2024

Eurasian phys. tech. j.

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The influence of the plasmon effect of metal nanoparticles on electron transfer from Eosin and Rhodamine B dyes to TiO2was studied. Spectral-kineticmeasurementsshowedthat, compared to SiO2, not only the intensity but also the fluorescence lifetime of both dyes decreases on the TiO2surface, which indicates the charge transfer from the dye to the semiconductor. In the presence of core@shell (Ag@TiO2) plasmon nanostructures, an intensification of the fluorescence of both dyes is observed, as well as a decrease in the duration of the dyes emission. The optimal concentration for which the maximum plasmon effect was recorded is 3 wt% of Ag@TiO2. The plasmon effect also leads to an increase in the efficiency of sensitization of the semiconductor by molecules of the dyes under study, which is expressed as an increase in the photovoltaic and charge-transport characteristics of the semiconductor films. The results obtained on theplasmoneffect on the charge transfer process in the dye/semiconductor system can be used in the development of devices for photovoltaics, photocatalytic, and optoelectronic elements.

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Section: Introductionmentioning

confidence: 99%

Influence of Plasmon Effect on the Sensitization of Titanium Dioxide by Dye Molecules

Omarova

2024

Eurasian phys. tech. j.

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“…Intermolecular non-radiative inductive resonance energy transfer (FRET) has found wide application in the field of biophysics and bioimaging [1,2], near-field optical microscopy [3] and photovoltaics [4][5][6]. It is also of interest in solving problems in which the efficient transfer of optical excitation at distances smaller than the wavelength is the key process.…”

Section: Introductionmentioning

confidence: 99%

Plasmon-activated Forster energy transfer in molecular systems

Kh.

Кучеренко

Temirbayeva

et al. 2022

Optics and Spectroscopy

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To explain the experimentally observed effect of silver nanoparticles on the fluorescence of organic dyes and the nonradiative intermolecular transfer of electronic excitation energy in multilayer nanostructures, the previously proposed theoretical model of plasmon resonance in spherical nanoparticles of metals was used. The rates of radiative and nonradiative (FRET) processes in film structures with Ag nanoparticles were calculated for fluorescein and rhodamine B molecules, as well as for two-component systems fluorescein-nile red (NR) and rhodamine B-NR. A version of the model was used that takes into account the effect of NPs on FRET between molecules, the radiative decay of donor and acceptor molecules, and the energy transfer from the dye to plasmonic nanoparticles. The calculation of the UDA rate for pairs with different energy transfer efficiency showed a greater increase in the UDA parameter for the fluorescein-nile red pair than for the rhodamine B-nile red pair. Estimation of the fluorescence enhancement factor of donor and energy acceptor molecules and the rate of energy transfer from the dye to silver NPs showed their insignificant contribution to the formation of the resulting energy transfer efficiency enhancement in the presence of plasmonic NPs. Keywords: energy transfer, silver nanoparticles, plasmon, model

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“…Recently, attention has been drawn to the possibility of both moving PDs molecules [11] and controlling the optical properties of PDs [12] in the presence of metal nanoparticles (NPs) with a profound localized surface plasmon resonance (LPR). A number of studies have investigated the forward and reverse energy transfer from PD molecules to metal NPs [13,14] and the effect of LPR of NPs on the Förster resonance energy transfer in donor-acceptor pairs of PD molecules [15,16].…”

Section: Introductionmentioning

confidence: 99%

Influence of silver nanoparticles on the spectral-luminescent and lasing properties of merocyanine dyes solutions

et al. 2021

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The effect of silver nanoparticles (NPs) on spectral-luminescent and generation properties of ethanol solutions of vinylogous series neutral merocyanine dye has been studied. Adding silver NPs to dye solutions has led to a growth of optical density D and fluorescence intensity I FL of the dye molecules. With lengthening of a polymethine chain the silver NPs' effect on the D and I IFL values has been increasing. Whilst, a spectral overlap between the silver NPs and merocyanines has been decreasing. It is argued that the effect of the silver NPs on optical properties of the dye solutions may be related to the growth in the value of electron dipole moment of ground-to-the first excited state transition at the lengthened polymethine chain. The dye fluorescence quantum yields and lifetimes in the presence of silver NPs have been measured. Adding the silver NPs to the merocyanine ethanol solutions has led to the reduced dye stimulated emission generation threshold (P TR ). A decrease in the value P TR corresponds to the changes observed for the D, I FL values and dye luminescence quantum yields.

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Role of Energy Transfer in Conversion of Light to Electric Energy

Cited by 10 publications

References 5 publications

Influence of Plasmon Effect on the Sensitization of Titanium Dioxide by Dye Molecules

Influence of Plasmon Effect on the Sensitization of Titanium Dioxide by Dye Molecules

Plasmon-activated Forster energy transfer in molecular systems

Influence of silver nanoparticles on the spectral-luminescent and lasing properties of merocyanine dyes solutions

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