Influence of interface morphologies on amorphous silicon thin film solar cells prepared on randomly textured substrates

Jovanov, Vladislav; Xu, Xin; Shrestha, Shailesh; Schulte, M.; Hüpkes, J.; Zeman, Miro; Knipp, Dietmar

doi:10.1016/j.solmat.2013.01.017

Cited by 56 publications

(48 citation statements)

References 26 publications

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“…As has been reported, often those patterns are beneficial for increasing the cell efficiency [17][18][19]. Most commonly and easily, textures can be fabricated on the surface of the TCO layer [20][21][22].…”

Section: Patterning Of the Tcomentioning

confidence: 97%

A study on the optics of copper indium gallium (di)selenide (CIGS) solar cells with ultra-thin absorber layers

Xu¹,

Wachters²,

Deelen³

et al. 2014

Opt. Express

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Abstract:We present a systematic study of the effect of variation of the zinc oxide (ZnO) and copper indium gallium (di)selenide (CIGS) layer thickness on the absorption characteristics of CIGS solar cells using a simulation program based on finite element method (FEM). We show that the absorption in the CIGS layer does not decrease monotonically with its layer thickness due to interference effects. Ergo, high precision is required in the CIGS production process, especially when using ultra-thin absorber layers, to accurately realize the required thickness of the ZnO, cadmium sulfide (CdS) and CIGS layer. We show that patterning the ZnO window layer can strongly suppress these interference effects allowing a higher tolerance in the production process.

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Section: Patterning Of the Tcomentioning

confidence: 97%

A study on the optics of copper indium gallium (di)selenide (CIGS) solar cells with ultra-thin absorber layers

Xu¹,

Wachters²,

Deelen³

et al. 2014

Opt. Express

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“…The experimentally determined optical data are taken as input for the simulations. An isotropic growth model [12] is assumed to take into account the changes in the interface texture due to the coverage of the texture by the a-Si:H layer. A monochromatic plane wave source is implemented in the incident glass half space.…”

Section: Optical Simulationsmentioning

confidence: 99%

Broadening of Light Coupling to Waveguide Modes in Solar Cells by Disordered Grating Textures

et al. 2017

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Abstract:We investigated the light coupling to waveguide modes in nanophotonic thin-film solar cells exhibiting a tailored disordered grating texture by rigorous optical simulations. Such disordered nanophotonic light trapping concepts have demonstrated enhanced short-circuit current density compared to ordered nanophotonic thin-film solar cells. This observation is commonly explained by a spectral broadening of the resonant light coupling to waveguide modes. In this work, we investigated the origin of this spectral broadening. We identified two basic mechanisms that lead to a spectral broadening of the light coupling to waveguide modes: (1) the broadening of the wave vector transferred by the disordered interface texture and (2) the broadening of the waveguide mode due to the distortion of the wave guiding absorber layer. Depending on the type of disorder, the contribution from each of the mechanisms varies.

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“…The front transparent conductive oxide (TCO) films must exhibit good transparency, low resistivity and excellent light scattering properties for high efficiency a-Si TFSCs. Various textured TCO films like SnO 2 :F, ZnO:Al, and ZnO:B are commonly used as substrates to increase the light path within the absorber layer for the enhancement of light trapping in the solar cell [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. However, these textured TCOs substrates are insufficient to gain the light scattering effect needed for longer wavelength region due to their smaller (~600 nm) textured size features.…”

Section: Introductionmentioning

confidence: 99%

“…Various methods to create textured glass surface morphologies have been investigated in recent years like sand blasting, powder blasting, wet chemical etching with hydrofluoric acid (HF) based solutions, aluminum induced texturization (AIT) and plasma etching through a nanostructured metal mask [11][12][13][14][15][16]. Thus, the textured glass surface substrates with nano-and micro size features can be employed to scatter light in lower as well as in longer wavelength region.…”

Section: Introductionmentioning

confidence: 99%

Plasma Textured Glass Surface Morphologies for Amorphous Silicon Thin Film Solar Cells-A review

Hussain

Balaji²,

Kim³

et al. 2016

Transactions on Electrical and Electronic Materials

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The surface morphology of the front transparent conductive oxide (TCO) films plays a vital role in amorphous silicon thin film solar cells (a-Si TFSCs) due to their high transparency, conductivity and excellent light scattering properties. Recently, plasma textured glass surface morphologies received much attention for light trapping in a-Si TFSCs. We report various plasma textured glass surface morphologies for the high efficiency of a-Si TFSCs. Plasma textured glass surface morphologies showed high rms roughness, haze ratio with micro-and nano size surface features and are proposed for future high efficiency of a-Si TFSCs.

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Influence of interface morphologies on amorphous silicon thin film solar cells prepared on randomly textured substrates

Cited by 56 publications

References 26 publications

A study on the optics of copper indium gallium (di)selenide (CIGS) solar cells with ultra-thin absorber layers

A study on the optics of copper indium gallium (di)selenide (CIGS) solar cells with ultra-thin absorber layers

Broadening of Light Coupling to Waveguide Modes in Solar Cells by Disordered Grating Textures

Plasma Textured Glass Surface Morphologies for Amorphous Silicon Thin Film Solar Cells-A review

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