Antireflection and absorption properties of silicon parabolic-shaped nanocone arrays

Xing, Yupeng; Zhang, Kailiang; Zhao, Jinshi; Han, Peng; Yang, Zhengchun; Yuan, Yujie; Ding, Qiong

doi:10.1016/j.ijleo.2016.10.020

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…r(λ)dλ and ∆R = R f lat glass − R RPAs−glass R f lat glass (10) where r(λ) represents the theoretical or experimental values as a function of λ, λ 1 = 350 nm, and λ 2 = 800 nm. Table 1 shows the comparison results between the theory and the experiment.…”

Section: Experimental Verificationmentioning

confidence: 99%

“…However, compared with traditional energy resources, solar energy experiences deficiencies such as high manufacturing cost and unideal transform efficiency, which seriously limit its wide application. To improve the conversion efficiency, researchers have developed light-trapping structures for various solar cells, such as nano/micro-pyramids [1][2][3][4], nanowires [5][6][7], nanocone [8][9][10][11][12], nanosphere [13][14][15][16], and porous silicon structures [17,18]. Light-trapping structures possess broadband optical absorption abilities, which can effectively lower the loss of light caused by reflection and raise the valid length of optical paths in the active layer of solar cells [19].…”

Section: Introductionmentioning

confidence: 99%

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The Light-Trapping Character of Pit Arrays on the Surface of Solar Cells

et al. 2023

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Surfaces with light-trapping structures are widely used in solar cells to enhance light capturing and to transform efficiency. The study of light-trapping character is important for light-trapping structures in solar cells. In the present study, the light-trapping character for the regular hemisphere pit arrays (RHPAs) in solar cells was intensively investigated in terms of reducing light reflection, suppressing light escape, and increasing the length of the optical path. Results show that the RHPAs can decrease surface reflectivity by ~54% compared with the plane structure, and can reflect ~33% of the light that has not been absorbed back into the absorption layer of the solar cell. The total optical path of the cell with the RHPAs structure remarkably increased from 2ω to 4ω. To verify the theoretical research conclusions, we produced the glass structure samples with different aspect ratios by using micro/nanometer-processing technology. The reflection ratios for silicon wafers covered by plane and RHPAs glass samples were tested. The test results were compared with the theoretical calculation results, which showed consistency.

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Section: Experimental Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Light-Trapping Character of Pit Arrays on the Surface of Solar Cells

et al. 2023

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“…In order to overcome this limitation, the amorphous /crystalline silicon core/shell structures are simultaneously used to take advantage of the a-Si high absorption and the high diffusion length (>200 µm) of c-Si [7]. Recently, vertically oriented NWSCs have been widely investigated, either as single NWs [13], [14] or NW arrays [15]- [21]. Nevertheless, in all studies based on the laterally oriented NWSCs, most of the attention was focused on the single NWSCs [22]- [24].…”

Section: Introductionmentioning

confidence: 99%

Wideband Absorption Enhancement in Laterally Oriented Core-Shell c-Si/a-Si Hexagonal Nanowire Arrays

Shahraki

Ghadrdan

2021

IJOP

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In this paper, the optical properties of laterally oriented core-shell nanowire silicon solar cells (NWSCs) are optimized. The optimum structure consists of an array with non-uniform hexagonal nanowires (NWs). Each NW is constructed from an amorphous silicon layer sandwiched between two crystalline silicon layers. In order to improve the light absorption and short circuit current density (Jsc) of NWSC, a particle swarm optimization (PSO) algorithm is used to optimize the geometrical parameters of NWs. It is shown that the optimized structure has advantageous performance in terms of light absorption and Jsc. Finally, a multiple structure composed of two NWs with different morphologies and the optimized dimensions is proposed to utilize NWSCs better.

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“…2 A radial p-n junction of silicon nanorod (nanowire, nanocone, or nanopillar) arrays has been applied on photovoltaic devices, which is a new technology for reducing the cost and improving the efficiency of silicon solar cells. [3][4][5][6][7][8] For the radial pn junction of a solar cell, orthogonalization is generated between the light absorption and carrier transport direction. Photons are absorbed along the axial direction of a silicon nanopillar solar cell as well as carriers are generated along the radial direction of the silicon nanopillar solar cell.…”

Section: Introductionmentioning

confidence: 99%

“…Also, the average reection in the range of 300-800 nm was lower than 1%. 4,8,[37][38][39] Although the reection of silicon nanopillar arrays is not lower than nanowire or nanocone arrays, the efficiency of cells with a lower defect structure is improved by the increased light absorption with multiple reections between the nanopillars. 5,40,41 The three structures with the optimal properties of light trapping signicantly improved the path length of incident light.…”

Section: Introductionmentioning

confidence: 99%