Photonic nanostructures for advanced light trapping in thin crystalline silicon solar cells

Trompoukis, Christos; Abdo, Islam; Cariou, Romain; Cosme, Ismael; Chen, Wanghua; Deparis, Olivier; Dmitriev, Alexandre; Drouard, Emmanuel; Foldyna, Martin; Garcia-Caurel, Enric; Gordon, Ivan; Heidari, Babak; Herman, Aline; Lalouat, Loı̈c; Lee, Ki-Dong; Liu, Jia; Lodewijks, Kristof; Mandorlo, Fabien; Massiot, Inès; Mayer, A.; Mijkovic, Vladimir; Müller, Jérôme; Orobtchouk, Régis; Poulain, G.; Prod’homme, P.; Cabarrocas, Pere Roca i; Seassal, Christian; Poortmans, Jef; Mertens, R.; Daïf, Ounsi El; Depauw, Valérie

doi:10.1002/pssa.201431180

Cited by 60 publications

(53 citation statements)

References 76 publications

(101 reference statements)

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“…The objective is to mimic nanopatterns like inverted nanopyramids (fabricated by wet etching [1,5,11]) and cylindrical nanoholes (obtained by dry etching [4,5,11,12]), covered by a partial TCO layer. Figure 3 represents the electric periodic elements for a PC made of a square lattice of squares, rounds and diamonds with a top finger aligned (a) or not (b) with the PC directions.…”

Section: Behavior Of the Local Sheet Resistancementioning

confidence: 99%

“…Theoretically, their energy conversion efficiencies may reach those of standard cells as long as the thickness of c-Si is at least of the order of 10 μm to 20 μm [1]. An efficient light trapping structure like a photonic crystal is necessary to enhance the absorption in the active material [1][2][3][4][5][6][7][8]. As surface recombinations are much more critical for thin solar cells, the HIT (Heterojunction with Intrinsic Thin layer) structure is a powerful solution since it currently allows the best conversion efficiency with a c-Si absorber [9].…”

Section: Introductionmentioning

confidence: 99%

“…However, when collectors of minority carriers are located on both sides of the absorber, it is then necessary to add a TCO (Transparent Conductive Oxide) layer to collect carriers into the nearest metal finger. This layer also acts as an anti-reflective coating (ARC), and generally induces parasitic absorption at low wavelengths [5]. Optical simulations demonstrated that the total optical losses in the front a-Si:H and the TCO layers can correspond to a short circuit current density (J sc ) decrease up to 5 mA cm −2 for a thin film HIT solar cell [10] or up to 9.3% for a 1 μm thick micro crystalline solar cell [8].…”

Section: Introductionmentioning

confidence: 99%

“…Optical simulations demonstrated that the total optical losses in the front a-Si:H and the TCO layers can correspond to a short circuit current density (J sc ) decrease up to 5 mA cm −2 for a thin film HIT solar cell [10] or up to 9.3% for a 1 μm thick micro crystalline solar cell [8]. The material used a e-mail: fabien.mandorlo@insa-lyon.fr to make the heterojunction itself can lead to additional absorption losses, including when it is made of a-Si:H [5].…”

Section: Introductionmentioning

confidence: 99%

“…Patterning a standard vertical HIT structure by a photonic crystal (PC) is an efficient strategy to strongly increase the photonic current with thin absorbers [2,3,5,6]. However, instead of using conformal TCO and collector layers on top of the PC (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Influence of patterning the TCO layer on the series resistance of thin film HIT solar cells

Champory¹,

Mandorlo²,

Seassal³

et al. 2017

EPJ Photovolt.

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Thin HIT solar cells combine efficient surface passivation and high open circuit voltage leading to high conversion efficiencies. They require a TCO layer in order to ease carriers transfer to the top surface fingers. This Transparent Conductive Oxide layer induces parasitic absorption in the low wavelength range of the solar spectrum that limits the maximum short circuit current. In case of thin film HIT solar cells, the front surface is patterned in order to increase the effective life time of photons in the active material, and the TCO layer is often deposited with a conformal way leading to additional material on the sidewalls of the patterns. In this article, we propose an alternative scheme with a local etching of both the TCO and the front a-Si:H layers in order to reduce the parasitic absorption. We study how the local resistivity of the TCO evolves as a function of the patterns, and demonstrate how the increase of the series resistance can be compensated in order to increase the conversion efficiency.

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Section: Behavior Of the Local Sheet Resistancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of patterning the TCO layer on the series resistance of thin film HIT solar cells

Champory¹,

Mandorlo²,

Seassal³

et al. 2017

EPJ Photovolt.

Self Cite

View full text Add to dashboard Cite

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Integrated Solar Hydrogen Devices: Cell Design and Nanostructured Components in Liquid and Vapor‐Phase Water Splitting

Bosserez

Rongé

Geerts

et al. 2017

Nanotechnology in Catalysis

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Stretchable ITO‐Free Organic Solar Cells with Intrinsic Anti‐Reflection Substrate for High‐Efficiency Outdoor and Indoor Energy Harvesting

Huang

Ren

Zhang

et al. 2021

Adv Funct Materials

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Flexible photovoltaic devices are promising candidates for triggering the Internet of Things (IoT). However, the power conversion efficiencies (PCEs) of flexible organic photovoltaic (OPV) devices with high conductivity poly(3,4‐ethylene dioxythiophene):polystyrene sulfonate (PEDOT:PSS) electrodes on plastic are lagging behind the rigid devices due to the low transmittance of polyethylene terephthalate (PET)/PEDOT:PSS. Moreover, the poor stretchability of the commonly used plastic substrates largely hinders the practical application of wearable devices. Herein, a novel stretchable indium tin oxide (ITO)‐free OPV device with a surface‐texturing polydimethylsiloxane (PDMS) substrate for outdoor strong‐ and indoor dim‐light energy harvesting is reported. The high diffuse transmittance and haze effect of the substrate enable stretchable ITO‐free devices, yielding a high PCE of 15.3% under 1 sun illumination. More excitingly, the stretchable device based on textured PDMS/PEDOT:PSS maintains a comparable PCE of 20.5% (20.8% for the rigid device) under indoor light illumination. Notably, the stretchable device is much more insensitive to the light direction, maintaining 38.5% of the initial PCE at an extremely small incident angle of 10° (16.3% for glass/ITO‐based counterpart). The texturing stretchable substrate provides a new direction for achieving high performance and enhanced light utilization for the stretchable light‐harvesting device, suitable for indoor and outdoor applications.

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Photonic nanostructures for advanced light trapping in thin crystalline silicon solar cells

Abstract: International audienc

Cited by 60 publications

References 76 publications

Influence of patterning the TCO layer on the series resistance of thin film HIT solar cells

Influence of patterning the TCO layer on the series resistance of thin film HIT solar cells

Integrated Solar Hydrogen Devices: Cell Design and Nanostructured Components in Liquid and Vapor‐Phase Water Splitting

Stretchable ITO‐Free Organic Solar Cells with Intrinsic Anti‐Reflection Substrate for High‐Efficiency Outdoor and Indoor Energy Harvesting

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