Ultra-High Photon Energy Absorption by Gold Nanoparticles Arrays

Theoretical and practical principles of interaction of light with systems of metallic localized nanoparticles have been outlined and the importance of the electron-optical phonon resonance detuning effect was emphasized to design and develop nanotechnology devices. The demonstration of solar radiation interaction with surface-located gold nanoparticles on rutile was resulted in about 20 times enhancement in energy absorption. This gives possibility to improve different techniques such as energy conversion using optimally structured surfaces.

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Photon energy conversion and management in SrAl12O19: Mn2+, Gd3+ for rewritable optical information storage

Chemical Engineering Journal ◽

10.1016/j.cej.2021.129844 ◽

2021 ◽

pp. 129844

Author(s):

Xiaohui Lin ◽

Kaiyuan Deng ◽

Haoyi Wu ◽

Bingsheng Du ◽

Bruno Viana ◽

...

Keyword(s):

Energy Conversion ◽

Photon Energy ◽

Information Storage ◽

Optical Information ◽

Optical Information Storage

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Sunlight-Activated Phase Change Materials for Controlled Heat Storage and Triggered Release

Journal of Materials Chemistry A ◽

10.1039/d1ta01007g ◽

2021 ◽

Author(s):

Yuran Shi ◽

Mihael Gerkman ◽

Qianfeng Qiu ◽

Shuren Zhang ◽

Grace G. D. Han

Keyword(s):

Phase Transition ◽

Solar Radiation ◽

Phase Change ◽

Latent Heat ◽

Photon Energy ◽

Organic Phase ◽

Phase Change Materials ◽

Heat Storage ◽

Triggered Release

We report the design of photo-responsive organic phase change materials that can absorb filtered solar radiation to store both latent heat and photon energy via simultaneous phase transition and photo-isomerization....

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Photon energy absorption parameters for some polymers

Annals of Nuclear Energy ◽

10.1016/j.anucene.2009.12.017 ◽

2010 ◽

Vol 37 (3) ◽

pp. 422-427 ◽

Cited By ~ 21

Author(s):

Tejbir Singh ◽

Rajni ◽

Updesh Kaur ◽

Parjit S. Singh

Keyword(s):

Energy Absorption ◽

Photon Energy

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A Study of Photon Interaction and Photon Energy Absorption Effective Atomic Numbers for Some Amino Acids

Nuclear Science and Engineering ◽

10.13182/nse09-35tn ◽

2010 ◽

Vol 165 (2) ◽

pp. 240-244 ◽

Cited By ~ 1

Author(s):

Tejbir Singh ◽

Updesh Kaur ◽

Shivali Tandon ◽

Parjit S. Singh

Keyword(s):

Amino Acids ◽

Energy Absorption ◽

Photon Energy ◽

Photon Interaction ◽

Effective Atomic Numbers

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Atomic-level, Energy-conversion Heat Transfer

Journal of Heat Transfer ◽

10.1115/1.4051463 ◽

2021 ◽

Author(s):

Massoud Kaviany

Keyword(s):

Heat Transfer ◽

Energy Conversion ◽

Optical Phonon ◽

Atomic Level ◽

Atomic Scale ◽

Energy Conditions ◽

Spectral Energy ◽

Level Energy ◽

High Entropy ◽

Low Entropy

Abstract Heat is stored in quanta of kinetic and potential energies in matter. The temperature represents the equilibrium and exciting occupation (boson) of these energy conditions. Temporal and spatial temperature variations and heat transfer are associated with the kinetics of these equilibrium excitations. During energy-conversion (between electron and phonon systems), the occupancies deviate from equilibria, while holding atomic-scale, inelastic spectral energy transfer kinetics. Heat transfer physics reaches nonequilibrium energy excitations and kinetics among the principal carriers, phonon, electron (and holes and ions), fluid particle, and photon. This allows atomic-level tailoring of energetic materials and energy-conversion processes and their efficiencies. For example, modern thermal-electric harvesters have transformed broad-spectrum, high-entropy heat into a narrow spectrum of low-entropy emissions to efficiently generate thermal electricity. Phonoelectricity, in contrast, intervenes before a low-entropy population of nonequilibrium optical phonons becomes a high-entropy heat. In particular, the suggested phonovoltaic cell generates phonoelectricity by employing the nonequilibrium, low-entropy, and elevated temperature optical-phonon produced population–for example, by relaxing electrons, excited by an electric field. A phonovoltaic material has an ultra-narrow electronic bandgap, such that the hot optical-phonon population can relax by producing electron-hole pairs (and power) instead of multiple acoustic phonons (and entropy). Examples of these quanta and spectral heat transfer are reviewed, contemplating a prospect for education and research in this field.

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