Plasmonic Light-trapping
Plasmonic Light-trapping - Related Videos
09:32
Polycrystalline Silicon Thin-film Solar cells with Plasmonic-enhanced Light-trapping
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Cited by 9 •
2012
Polycrystalline silicon thin-film solar cells on glass are fabricated by deposition of boron and phosphorous doped silicon layers followed by crystallisation, defect passivation and metallisation. Plasmonic light-trapping is introduced by forming Ag nanoparticles on the silicon cell surface capped with a diffused reflector resulting in ~45% photocurrent enhancement.
09:13
Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment
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2017
A microchip fabrication process that incorporates plasmonic tweezers is presented here. The microchip enables the imaging of a trapped particle to measure maximal trapping forces.
07:24
Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
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Cited by 2 •
2015
A simple protocol for the preparation of reduced graphene oxide using visible light and plasmonic nanoparticle is described.
09:12
Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
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Cited by 14 •
2016
A protocol for the colloidal synthesis of silver nanocubes and fabrication of plasmonic nanoscale patch antennas with sub-10 nm gaps is presented.
08:45
Integration of Light Trapping Silver Nanostructures in Hydrogenated Microcrystalline Silicon Solar Cells by Transfer Printing
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Cited by 2 •
2015
A viable transfer printing-based methodology to introduce plasmonic metal nanostructures in solar cells is described. Using nanopillar poly(dimethylsiloxane) stamps, an Ag-based ordered nanodisk array was integrated with standard hydrogenated microcrystalline Si solar cells, which led to improved device performances due to plasmonic light trapping.
FAQs
Localized surface plasmon resonances concentrate electromagnetic energy near a metal nanostructure when incident light drives collective electron oscillations at its surface. Scattering contributes through a different route by redirecting light and lengthening its path through an absorbing layer. Designs can therefore combine near-field concentration with increased optical travel to strengthen material absorption.
Metal nanostructures can increase the interaction between light and an absorbing material by concentrating electromagnetic energy nearby or by redirecting light through the layer for a longer distance. This optical enhancement reduces the need to rely only on added material thickness, supporting more compact device designs when conventional structures are limited.
Confinement places electromagnetic energy close to the metal nanostructure, whereas scattering changes the direction and travel path of incident light. The distinction matters because these mechanisms address absorption through different optical effects. Engineering designs can select or combine them according to whether the device needs stronger local fields, longer propagation through the absorber, or both.
A conceptual design places metal nanostructures near the material that must absorb light, then considers how illumination drives surface electron oscillations and how scattering changes the optical path. The resulting structure is evaluated by whether it increases absorption while preserving a thin form factor. This approach directly addresses optical limitations in compact devices.
Applications include thin-film solar cells, photodetectors, sensors, and other optoelectronic devices. In each case, the relevant goal is to strengthen the interaction between incoming light and a nearby material without simply making the absorbing region thicker. The approach is especially useful when device compactness or limited conventional optical performance constrains engineering choices.
The primary outcome is increased absorption in the nearby material, supported by electromagnetic-energy concentration or by a longer light path through the absorbing layer. Researchers should also consider whether the design achieves this improvement without unnecessary thickness. In engineering applications, that combination connects optical enhancement with compact device construction and improved performance.