Resonant coupling between localized plasmons and anisotropic molecular coatings in ellipsoidal metal nanoparticles

Ambjörnsson, Tobias; Mukhopadhyay, Goutam; Apell, S. Peter; Käll, Mikael

doi:10.1103/physrevb.73.085412

Cited by 96 publications

(86 citation statements)

References 32 publications

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“…This result indicated that more azobenzene molecules converted from trans-to cis-form in the presence of Ag nanowires. Larger percentage of azobenzene molecules absorbed the light energy due to amplified absorption cross section of azobenzene molecules by Ag nanowires (36).…”

Section: Resultsmentioning

confidence: 99%

Using silver nanowire antennas to enhance the conversion efficiency of photoresponsive DNA nanomotors

Yuan

Zhang²,

Chen³

et al. 2011

Proc. Natl. Acad. Sci. U.S.A.

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Plasmonic near-field coupling can induce the enhancement of photoresponsive processes by metal nanoparticles. Advances in nanostructured metal synthesis and theoretical modeling have kept surface plasmons in the spotlight. Previous efforts have resulted in significant intensity enhancement of organic dyes and quantum dots and increased absorption efficiency of optical materials used in solar cells. Here, we report that silver nanostructures can enhance the conversion efficiency of an interesting type of photosensitive DNA nanomotor through coupling with incorporated azobenzene moieties. Spectral overlap between the azobenzene absorption band and plasmonic resonances of silver nanowires increases light absorption of photon-sensitive DNA motor molecules, leading to 85% close-open conversion efficiency. The experimental results are consistent with our theoretical calculations of the electric field distribution. This enhanced conversion of DNA nanomotors holds promise for the development of new types of molecular nanodevices for light manipulative processes and solar energy harvesting.energy conversion | localized surface plasmon | photo-driven nanomotor P lants harvest solar energy by photosynthesis, in which photosensitive biomolecules absorb energy from sunlight and convert it into chemical energy. Human beings utilize solar energy by fossil fuels, solar thermal systems, and, most frequently nowadays, by photovoltaic systems based on optoelectric materials (1). The design of new synthetic materials coupled with a mechanism to capture, convert, and store photon energy will provide new ways to utilize solar energy (2, 3). However, achieving high conversion efficiency remains a challenge in such energy conversion systems.Recently, DNA has received attention in material sciences, especially for the fabrication of nanomachines able to perform nanoscale movements in response to external stimuli (4-11). Experimental and theoretical studies on single DNA nanomachines have led to the development of new energy conversion strategies (12, 13). As one of the most popular phototransformable molecules, azobenzene and its derivatives can change the overall structure by cis-trans isomerisation mechanism. Using the photoisomerization of azobenzene to photo-regulate DNA hybridization, (14) we have designed a single-molecule light-driven DNA nanomotor (15) for the continuous production of energy in the form of mechanical work. This photon-fueled nanomotor is simple and easy to operate, promising a unique approach to harvest photonic energy. Herein, azobenzene derivatives act as element for energy absorption and DNA molecules movement act for mechanical energy export. As we know, solar thermal technology is a technology to harvest solar thermal energy that converts solar energy to movement of molecules and then produces heat caused by molecule thermal moving. In our design, solar energy is converted to close-open movement of DNA molecules. However, few DNA motor molecules can undergo the close-open conversion as a result of the low p...

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Section: Resultsmentioning

confidence: 99%

Using silver nanowire antennas to enhance the conversion efficiency of photoresponsive DNA nanomotors

Yuan

Zhang²,

Chen³

et al. 2011

Proc. Natl. Acad. Sci. U.S.A.

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“…Strong coupling between localised surface plasmon-polaritons and J-aggregated molecules was investigated in 2006 both theoretically by Ambjornsson et al [151], and experimentally by Sugawara et al [75]. Sugawara et al exploited the localised modes associated with spherical nanovoids, structures that they produced by electrochemical deposition of gold through a template of self-assembled latex spheres.…”

Section: Localised Surface Plasmon-polaritonsmentioning

confidence: 99%

Strong coupling between surface plasmon polaritons and emitters: a review

2014

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Abstract. In this review we look at the concepts and state-of-the-art concerning the strong coupling of surface plasmon-polariton modes to states associated with quantum emitters such as excitons in J-aggregates, dye molecules and quantum dots. We explore the phenomenon of strong coupling with reference to a number of examples involving electromagnetic fields and matter. We then provide a concise description of the relevant background physics of surface plasmon polaritons. An extensive overview of the historical background and a detailed discussion of more recent relevant experimental advances concerning strong coupling between surface plasmon polaritons and quantum emitters is then presented. Three conceptual frameworks are then discussed and compared in depth: classical, semi-classical and fully quantum mechanical; these theoretical frameworks will have relevance to strong coupling beyond that involving surface plasmon polaritons. We conclude our review with a perspective on the future of this rapidly emerging field, one we are sure will grow to encompass more intriguing physics and will develop in scope to be of relevance to other areas of science.

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“…size, shape, free electron density, etc) and ultraviolet or near 8 infrared plasmon resonance wavelengths. Similarly to FRET, the PRET efficiency could be dependent on the distance between electronic resonance biomolecules and nanoplasmonic particles, their relative orientation 14 and light polarizations.…”

Section: )mentioning

confidence: 99%

Quantized plasmon quenching dips nanospectroscopy via plasmon resonance energy transfer

et al. 2007

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Resonant coupling between localized plasmons and anisotropic molecular coatings in ellipsoidal metal nanoparticles

Cited by 96 publications

References 32 publications

Using silver nanowire antennas to enhance the conversion efficiency of photoresponsive DNA nanomotors

Using silver nanowire antennas to enhance the conversion efficiency of photoresponsive DNA nanomotors

Strong coupling between surface plasmon polaritons and emitters: a review

Quantized plasmon quenching dips nanospectroscopy via plasmon resonance energy transfer

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