Development of textured ZnO-coated low-cost glass substrate with very high haze ratio for silicon-based thin film solar cells

Hongsingthong, Aswin; Krajangsang, Taweewat; Limmanee, Amornrat; Sriprapha, Kobsak; Sritharathikhun, Jaran; Konagai, Makoto

doi:10.1016/j.tsf.2013.04.138

Cited by 41 publications

(35 citation statements)

References 28 publications

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“…Figure 1(a) and 1(b) represents textured TCO surface morphologies of SnO 2 :F and ZnO:B films being employed by the Ashai-U research group [46,[56][57][58][59][60][61]. The ZnO:B films were grown by low pressure CVD (LP-CVD) from precursors of diethyl-zinc and H 2 O; the conductivity was easily controlled by using di-borane as the dopant source [58,59] [1,6,7]. The cauliflower ZnO films were deposited on RIE textured glass substrate using a MOCVD process with a mixture of D 2 O/H 2 O for the control of surface morphology [6].…”

Section: Textured Tco Surface Morphologiesmentioning

confidence: 99%

“…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%

“…An alternative approach to improve the light-trapping in a-Si TFSCs is to use of TCO films on the textured glass substrates [1][2][3][4][5][6][7][8][9][10]. 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].…”

Section: Introductionmentioning

confidence: 99%

“…Hongsingthong et al [6][7][8] reported the influence of RIE textured glass substrates with high rms roughness and haze ratio of ZnO films for the improved performance in a-Si TFSCs, due to their nano-and microsize textured surface morphologies. Isabella et al [4] reported modulated surface morphologies with various geometrical features for an enhanced scattering mechanism.…”

Section: Introductionmentioning

confidence: 99%

“…These nano-and micro-size textured surface morphologies can scatter light in the visible as well as NIR wavelength regions [4,[7][8][9][10]. Recently, Hussain et al [5,39,54] reported the influence of periodic SF 6 /Ar plasma textured glass surface morphologies for the light trapping in a-Si TFSCs.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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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Section: Textured Tco Surface Morphologiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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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ZnO and Related Materials

Muñoz‐Sanjosé¹,

Irvine²

2019

Metalorganic Vapor Phase Epitaxy (MOVPE)

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Tiling of Solar Cell Surfaces: Influence on Photon Management and Microstructure

Tamang

Sai

Jovanov

et al. 2017

Adv Materials Inter

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optical losses. [8][9][10][11][12][13][14] Hence, both the quantum efficiency (QE) and short-circuit current density of the solar cells can potentially be enhanced when properly implemented. Several experimental and simulation approaches have been carried out to derive the optimal textured interfaces. [4,7,9,15] However, realization and modeling of the optimal textured interfaces are complex because several factors have to be considered. [4,7,9,15] In order to realize the solar cells with high energy conversion efficiency, it is necessary to maximize the product of short-circuit current density, open-circuit voltage, and fill factor. Texturing the interfaces affects not only the short-circuit current density. The open-circuit voltage and fill factor are affected too by changing the surface texture of microcrystalline silicon thinfilm solar cells. [2,7,[16][17][18][19][20][21][22][23][24][25][26] Microcrystalline silicon films grown on textured surfaces exhibit a high concentration of microstructure-induced recombination centers, while the silicon films prepared on smooth surfaces do not exhibit such microstructure-induced recombination centers. [16,18,[23][24][25][26] A high concentration of recombination centers is observed in regions with reduced structural order, often called "cracks" or "voids." The concentration of cracks increases with increasing roughness of the substrate. [14,16,18,[23][24][25][26] As a result, the crack formation affects the charge collection efficiency of the solar cells. Furthermore, the open-circuit voltage and fill factor are affected. [7,16,18,[22][23][24][25][26] Hence, these electrical properties of the microcrystalline silicon solar cell have to be considered when optimizing its light-trapping properties.The microcrystalline silicon (µc-Si:H) solar cells fabricated on hexagonal textured substrates exhibit the highest short-circuit current density of up to 32.9 mA cm −2 , and energy conversion efficiency up to 11.8%. [3,6] The highest short-circuit current density of 32.9 mA cm −2 is obtained for a 4 µm thick solar cell on a hexagonal textured substrate with period of 4 µm, while the highest energy conversion efficiency is obtained for a solar cell with a thickness of 1.7 µm on a hexagonal textured substrate with a period of 2.0 µm. [3,6] However, it remains unclear if hexagonal textured substrates represent the best possible substrate. Hence, in this study, the influence of different textured substrates on the QE, short-circuit current density, and formation of cracks is studied.In the following, the µc-Si:H solar cells with different substrate textures are compared in respect of the optical properties Microcrystalline silicon thin-film solar cells prepared on hexagonal tiled surfaces exhibit record short-circuit current densities and energy conversion efficiencies. However, it remains unclear if hexagonal textured substrates represent the best possible substrate tiling. In this study, hexagonal tiled substrates are compared with square and triangular tiled substrates in terms of...

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Development of textured ZnO-coated low-cost glass substrate with very high haze ratio for silicon-based thin film solar cells

Cited by 41 publications

References 28 publications

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

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

ZnO and Related Materials

Tiling of Solar Cell Surfaces: Influence on Photon Management and Microstructure

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