Study of efficiency enhancement in layered geometry of excitonic-plasmonic solar cell

Pathak, Nilesh Kumar; Ji, Alok; Sharma, R. P.

doi:10.1007/s00339-013-8061-0

Cited by 22 publications

(11 citation statements)

References 27 publications

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“…where τ is the effective relaxation time, τ bulk is the bulk metal free electron scattering time, v f (=1.39 × 10 6 m/s, 1.38×10 6 m/s for silver and gold) is the Fermi velocity of an electron in noble MNP, A is the geometrical parameter and its value lies between 2 and 1 (in our case, we have chosen A=1 for isotropic scattering) [22] and l is the effective radius of the metallic core which depends on the shape.…”

Section: Theorymentioning

confidence: 99%

“…The general expression of absorption, scattering and extinction cross section of a coated nanoellipsoid under quasi-static approximation (the particle size is much smaller than the wavelength of light) can be expressed as [22,24] C abs ¼ kIm…”

Section: Theorymentioning

confidence: 99%

“…Since the dielectric property of bulk MNPs is entirely different from the nanolevel properties, at the nanolevel, the dielectric constants of MNPs are highly dependent on the size and shape of the nanoparticles. Hence, the size-dependent dielectric constant of nanoparticles can found by solving the Drude Lorentz model [20][21][22].…”

Section: Theorymentioning

confidence: 99%

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Study of Light Extinction and Surface Plasmon Resonances of Metal Nanocluster: a Comparison Between Coated and Non-coated Nanogeometry

Pathak

Pandey

et al. 2015

Plasmonics

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We suggest a noble design of coated and noncoated nanospheroids to study the tunable behaviour of surface plasmon resonances with different physical environments. Incorporation of coated nanospheroids into the various dielectric media exhibits double dipole plasmonic resonance spectra, which are highly tunable in the visible to infrared regions of the electromagnetic spectrum. The tunability of double dipole peaks and its spectral width depend upon the shape anisotropy of the chosen nanogeometry (especially prolate-and oblate-shaped coated silver and gold nanospheroids). By changing the major and minor axes radii of the inner ellipsoid, there is gradual blue and red shifting in the surface plasmon resonance (SPR) peak position. It was accounted that for the prolate-shaped coated gold nanospheroid with inner radii a 1 =10 nm and c 1 =3.8 nm and outer radii a 2 =16 nm and c 2 =6.08 nm, two SPR peaks are found at wavelengths 615 and 826 nm. In addition, the tunability of SPR peaks and full width at half maximum (FWHM) value have also been discussed with surrounding media and it was found that the magnitude of the peak extinction is maximum for refractive index N=2. With the selection of various optical constants of embedding media, the wide tunability of plasmonic resonance spectra that lies in the range of 400-1100 nm has been observed. We have also discussed the advantage of coated nanospheroids over non-coated nanospheroids in the context of tunability of the SPR peak as well as the number of photons absorbed inside the thinfilm wafer.

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Section: Theorymentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

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Study of Light Extinction and Surface Plasmon Resonances of Metal Nanocluster: a Comparison Between Coated and Non-coated Nanogeometry

Pathak

Pandey

et al. 2015

Plasmonics

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“…There are three basic mechanisms that are exhibited by metal nanoparticles and are widely used for photovoltaic application: (1) the scattering by the metal nanoparticles that can be used to enhance the effective path length of light inside surrounding medium, (2) the nearfield enhancement and (3) direct generation of charge carriers in the semiconductor substrate [14][15][16]. Many more reports suggest that the photocurrent enhancements for inorganic devices are caused by scattering mechanism, while for organic devices, photocurrent mechanism is governed by nearfield enhancement effect [17]. Here, we are interested to study the plasmonic interaction to the combined organicinorganic material known as perovskite (methyl ammonia lead halide).…”

Section: Introductionmentioning

confidence: 98%

Study of Broadband Tunable Properties of Surface Plasmon Resonances of Noble Metal Nanoparticles Using Mie Scattering Theory: Plasmonic Perovskite Interaction

Pathak

Sharma

2015

Plasmonics

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We suggest semi-analytical approach to study the optical properties of noble metal nanoparticles and their interaction to the perovskite material (methyl ammonia lead halide: CH 3 NH 3 PbI 3 ). Metal nanoparticles embedded in perovskite matrix exhibits broadband surface plasmon resonances, and the tunability of these plasmonic resonances is highly sensitive to particle size. The calculation of optical cross section have been done using Mie scattering theory which is applicable to arbitrary size and spherical-shape metal nanoparticles. We have taken five different radii ranging from 15 to 100 nm to understand the plasmonic resonances and its spectral width in the wavelength range 300 to 800 nm. Out of these noble metal nanoparticles, silver have highest scattering efficiency nearly of the order of 18 for the case of 15 nm radii at resonance wavelength 613 nm. Our finding reveals a new concept to understand the applications of plasmonic resonances in order to enhance the photon absorption inside the thin film of perovskite.

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“…One can tune these SPR peak positions by choosing different surrounding media. The tunable behaviors of SPR with size shape and surrounding environments would cover a wide range of applications such as biosensor, Raman spectroscopic, waveguide and thin-film photovoltaic device [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Resonances and Their Application to Thin-Film Solar Cell

Pathak¹,

Kumar²,

Sharma³

2018

Emerging Solar Energy Materials

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This chapter furnishes the plasmonic properties of metal nanostructure and its application to thin-film solar cell. Plasmonics is an emerging branch of nanooptics where light metal interaction in subwavelength domain is studied. Metal supports surface plasmon resonance that has tunable signature, which depends on the morphology as well as surrounding media. These plasmonic resonances can be tuned in a broader range of solar spectra by changing several parameters such as size, shape and medium. Moreover, metals show scattering properties that could be utilized to enhance optical path length of photon inside the thin film of solar device. The chapter mainly focusses on the study of plasmonic resonance of smaller-and larger-sized metal nanoparticle using semi-analytical as well as numerical approach. For the estimation of optical properties like extinction spectrum and field profile of larger-sized nanoparticle, finite-difference time-domain (FDTD) method is used. The field distribution in both silver and gold nanoparticle cases has been plotted in 'on' resonance condition, which has a broader range of applications.

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Study of efficiency enhancement in layered geometry of excitonic-plasmonic solar cell

Cited by 22 publications

References 27 publications

Study of Light Extinction and Surface Plasmon Resonances of Metal Nanocluster: a Comparison Between Coated and Non-coated Nanogeometry

Study of Light Extinction and Surface Plasmon Resonances of Metal Nanocluster: a Comparison Between Coated and Non-coated Nanogeometry

Study of Broadband Tunable Properties of Surface Plasmon Resonances of Noble Metal Nanoparticles Using Mie Scattering Theory: Plasmonic Perovskite Interaction

Plasmonic Resonances and Their Application to Thin-Film Solar Cell

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