An efficient plasmonic photovoltaic structure using silicon strip-loaded geometry

We analyze the performance of bulk heterojunction organic solar cells under oblique incidence of light. In this regard, we present an optoelectronic analytical model that describes the current-voltage characteristics of bulk heterojunction organic solar cells taking into account the effect of angle of incidence. A closed-form general expression is derived for the optical generation rate under oblique incidence employing transfer matrix formalism. The resulting expression is then incorporated in the classical drift-diffusion transport and continuity equations of charge carriers to derive a unified expression of voltage dependent current density combining optical and electrical parameters. Thus, the model is capable of determining the accurate optical absorption in the active layer for varying angles of incidence as well as predicting the corresponding wavelength dependent external quantum efficiency of the device. The results are verified by comparing with published numerical and experimental results. We show that the maximum efficiency might be achieved at an oblique angle of incidence rather than normal incidence for certain active layer thicknesses. We also report the optimum angles at which the maximum efficiency occurs and show that they are active layer thickness dependent.

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“…31 Hence, the total generation rate G(x,λ) is estimated from the average of G s (x,λ) and G p (x,λ).…”

Section: A Determination Of Internal Optical Electric Field and Optimentioning

confidence: 99%

Effect of angle of incidence on the performance of bulk heterojunction organic solar cells: A unified optoelectronic analytical framework

Rahman

Alam

2017

AIP Advances

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“…The strip waveguide is made of three dielectric layers such as a substrate, a planar and a ridge. The planar waveguide (without strip) already offers optical light confinement in the vertical direction (y-axis) and apart from this the strip can provide localized optical light confinement under the strip, because of the increase local effective refractive index (n e f f ) (15)(16)(17) .…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of strip loaded and rib waveguide with integration of 2D material

Jainth¹

2020

IJST

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Objective- To design Graphene-Silicon based rib waveguide and reduce the losses in the strip in order to meet the requirement for ultra-fast & ultrahigh optical bandwidth communication and computing in integrated optical devices. Method –Propagation losses and effective refractive index are the two key parameters. In order to meet the objective, the effects of Graphene for manufacturing passive devices/components in the field of Integrated Photonic like integrated optical waveguide have been analysed by measuring the changes in propagation losses and effective refractive index of the silicon photonics devices for operating at different wavelengths. Findings- We have presented the design and simulation of SOI (Silicon-on-Insulator) platforms with 2D layer materials (graphene) which has been used along with their mode of propagation, effective refractive index (ne f f ), propagation losses (dB/cm) and varying wavelength range for optimum performance. In addition to this, we have also calculated the boundary limit for both the speed and bandwidth. We also reported the development of Silicon rib waveguide, Graphene-Silicon based rib waveguide and Ge on SOI with graphene later at the top of strip waveguide.Minimum loss of strip waveguide is 2.9 dB/cm which has been obtained for Mid-IR wavelength generally used for high power mid- IR sensing.

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“…Such surface modes show great confinement and much shorter operating wavelength properties, providing a brand new approach to overcome the diffraction limits 2 3 , miniaturize the photonic components, and build highly integrated optical components and circuits. In the past decades, SPPs have been studied in a variety of applications such as high-resolution imaging 4 5 , electromagnetically induced transparency 6 7 8 , photovoltaic improvement 9 10 , and biosensing 11 12 13 .…”

Section: Introductionmentioning

confidence: 99%

Multi-layer topological transmissions of spoof surface plasmon polaritons

Pan

Zhao

Liao

et al. 2016

Sci Rep

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Spoof surface plasmon polaritons (SPPs) in microwave frequency provide a high field confinement in subwavelength scale and low-loss and flexible transmissions, which have been widely used in novel transmission waveguides and functional devices. To play more important roles in modern integrated circuits and systems, it is necessary and helpful for the SPP modes to propagate among different layers of devices and chips. Owing to the highly confined property and organized near-field distribution, we show that the spoof SPPs could be easily transmitted from one layer into another layer via metallic holes and arc-shaped transitions. Such designs are suitable for both the ultrathin and flexible single-strip SPP waveguide and double-strip SPP waveguide for active SPP devices. Numerical simulations and experimental results demonstrate the broadband and high-efficiency multi-layer topological transmissions with controllable absorption that is related to the superposition area of corrugated metallic strips. The transmission coefficient of single-strip SPP waveguide is no worse than −0.8 dB within frequency band from 2.67 GHz to 10.2 GHz while the transmission of double-strip SPP waveguide keeps above −1 dB within frequency band from 2.26 GHz to 11.8 GHz. The proposed method will enhance the realizations of highly complicated plasmonic integrated circuits.

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An efficient plasmonic photovoltaic structure using silicon strip-loaded geometry

Cited by 25 publications

References 25 publications

Effect of angle of incidence on the performance of bulk heterojunction organic solar cells: A unified optoelectronic analytical framework

Effect of angle of incidence on the performance of bulk heterojunction organic solar cells: A unified optoelectronic analytical framework

Design and simulation of strip loaded and rib waveguide with integration of 2D material

Multi-layer topological transmissions of spoof surface plasmon polaritons

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