Light trapping enhancement with combined front metal nanoparticles and back dif fraction gratings

Xia, Zhang; Wu, Yonggang; Liu, Renchen; Tang, Pinglin; Liang, Zhaoming

doi:10.3788/col201311.s10503

Cited by 3 publications

(2 citation statements)

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“…In TM case enhanced absorption noticed due to the surface plasmon resonances and collecting the oscillations of free electrons from the confined surfaces between the metallic and dielectric layers which are strongly interacting with the light (Xia et al, 2013;Zia et al, 2004;Homola et al, 1999).…”

Section: Resultsmentioning

confidence: 99%

“…It can be clearly observed that the field intensity (red) high near the antireflection coating layer of ITO with the incident wavelength of 509 nm (λc). The incident light propagates in the 'Z' direction, while boundaries are set to PBC and PML (Xia et al, 2013). But surface guided mode, Floquet mode, and Fabry-Perot resonance modes are generated within the amorphous silicon absorber region as shows in figure 4(a1).…”

Section: Resultsmentioning

confidence: 99%

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Ultrathin Film Amorphous Silicon Solar Cell Performance using Rigorous Coupled Wave Analysis Method

Dubey¹,

Saravanan²

2022

Int. J. Renew. Energy Dev.

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The issues related to global energy needs and environmental safeties as well as health crisis are some of the major challenges faced by the human, which make us to generate new pollution-free and sustainable energy sources. For that the optical functional nanostructures can be manipulated the confined light at the nanoscale level. These characteristics are emerging and leading candidate for the solar energy conversion. The combination of photonic (dielectric) and plasmonic (metallic) nanostructures are responsible for the development of better optical performance in solar cells. Here, the enhancement of light trapping within the thin active region is the primary goal. In this work, we have studied the influence of front-ITO (rectangular) and back-Ag (triangular) nanogratings were incorporated with ultrathin film amorphous silicon (a-Si) solar cell by using rigorous coupled wave analysis (RCWA) method. The improvement of light absorption, scattering (large angle), diffraction and field distributions (TE/TM) were demonstrated by the addition of single and dual nanogratings structures. Significantly, the plasmonic (noble metal) nanogratings are located at the bottom of the cell structure as a backside reflector which is helpful for the omni-directional reflection and increased the path length (life time) of the photons due to that the collection of the charge carriers were enhanced. Further, the proposed solar cell structure has optimized and compared to a back-Ag, front-ITO and dual nanogratings based ultrathin film amorphous silicon solar cell. Finally, the obtained results were evidenced for the assistance of photonic and plasmonic modes and achieved the highest current density (Jsc) of 23.82 mA/cm2(TE) and 22.75 mA/cm2 (TM) with in 50 nm thin active layers by integration of (dual) cell structures

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Ultrathin Film Amorphous Silicon Solar Cell Performance using Rigorous Coupled Wave Analysis Method

Dubey¹,

Saravanan²

2022

Int. J. Renew. Energy Dev.

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Multipole solitons in competing nonlinear media with an annular potential

Dong,

Fan,

Huang

et al. 2023

Phys. Rev. A

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Near-field enhancement of the nanostructure on the fused silica with rigorous method

Wang

et al. 2015

Appl. Opt.

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A rigorous electromagnetic method is developed to analyze the resonance effect of near field caused by nanoscale subsurface defects, which play a key role in describing absorption enhancement during laser-matter interaction for transparent dielectric materials. The total electric field calculated with this new method is consistent with the result of finite-difference time-domain simulation. The concept of mode amplitude density spectrum is developed to analyze the specific modes of the total field. A new mode parameter is proposed to demarcate the contribution of the resonance. The frequency space is divided into four parts and the resonance effect is analyzed as well as the contributions of different modes to the total field. The influence of the structure parameters on the near-field modulation and energy transference is also discussed. It is found that the enhancement mechanism of the near-field and local absorption is the resonance effect caused by the total internal reflection on the sidewall of the nanostructure. In addition, the surrounding energy is mainly guided into the structure by the root of the structure via the energy flow analysis.

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Light trapping enhancement with combined front metal nanoparticles and back dif fraction gratings

Cited by 3 publications

References 1 publication

Ultrathin Film Amorphous Silicon Solar Cell Performance using Rigorous Coupled Wave Analysis Method

Ultrathin Film Amorphous Silicon Solar Cell Performance using Rigorous Coupled Wave Analysis Method

Multipole solitons in competing nonlinear media with an annular potential

Near-field enhancement of the nanostructure on the fused silica with rigorous method

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