Using high haze (&gt; 90%) light-trapping film to enhance the efficiency of a-Si:H solar cells

Chu, Wei-Ping; Lin, Jianming; Lin, Tien-Chai; Tsai, Yuh‐Shyan; Kuo, Chen-Wei; Chung, Ming-Hua; Hsieh, Tsung−Eong; Liu, Lung-Chang; Juang, Fuh−Shyang; Chen, Nien-Po

doi:10.1016/j.optcom.2012.02.088

Cited by 12 publications

(6 citation statements)

References 12 publications

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“…In order to compare the performance of our high transparency, high haze glass substrates, we plotted the data for optoelectronic glass substrates with the best optical properties in literature with gray color. Aggregated alumina nanowire arrays 122 and imprinted PDMS on glass 123 showed a significant optical performance improvement compared to that of other glass. As shown in Figure 5b(i), two of the green circles (nanograss glass) and two of blue squares (OTS-coated nanograss glass) are on the Pareto frontier, plotted with the dashed line.…”

Section: Photon Managementmentioning

confidence: 94%

“…71 (b) (i) Nanograss glass with 1 and without 8 OTS coating, as well as the aggregated alumina nanowire arrays on glass 122 and imprinted PDMS on glass. 123 (c) (i) Nanograss PET, 7 as well as plastic−paper, 71 silica nanoparticle array on PET, 124 and doped poly(methyl methacrylate) (PMMA)/poly(ethylene terephthalate) (PET) without 125 and with shear. 126 transparent paper based on wood fibers, with ultrahigh transparency of ≈96% as well as high optical haze (≈60%).…”

Section: Photon Managementmentioning

confidence: 99%

“…This has included glass with aggregated alumina nanowire arrays 122 and imprinted polydimethylsiloxane (PDMS) on glass, which showed 94.6% transparency and 92.7% haze. 123 Recently, we reported the fabrication of nanograss on glass, 1,8 which provides transparency and haze both over 90%. We used maskless reactive ion etching for fabrication of nanograss structures on fused silica glass.…”

Section: Photon Managementmentioning

confidence: 99%

“…For (a) (i) paper, the plot includes mesoporous wood cellulose paper, nanostructured paper, microwood fiber in nanofiber paper, wood composites, and plastic–paper hybrids . (b) (i) Nanograss glass with and without OTS coating, as well as the aggregated alumina nanowire arrays on glass and imprinted PDMS on glass . (c) (i) Nanograss PET, as well as plastic–paper, silica nanoparticle array on PET, and doped poly(methyl methacrylate) (PMMA)/poly(ethylene terephthalate) (PET) without and with shear .…”

Section: Photon Managementmentioning

confidence: 99%

“…There have been few reports on high transparency and high haze glass. This has included glass with aggregated alumina nanowire arrays and imprinted polydimethylsiloxane (PDMS) on glass, which showed 94.6% transparency and 92.7% haze . Recently, we reported the fabrication of nanograss on glass, , which provides transparency and haze both over 90%.…”

Section: Photon Managementmentioning

confidence: 99%

See 4 more Smart Citations

Challenges and Prospects of Bio-Inspired and Multifunctional Transparent Substrates and Barrier Layers for Optoelectronics

2020

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Bio-inspiration and advances in micro/nanomanufacturing processes have enabled the design and fabrication of micro/nanostructures on optoelectronic substrates and barrier layers to create a variety of functionalities. In this review article, we summarize research progress in multifunctional transparent substrates and barrier layers while discussing future challenges and prospects. We discuss different optoelectronic device configurations, sources of bio-inspiration, photon management properties, wetting properties, multifunctionality, functionality durability, and device durability, as well as choice of materials for optoelectronic substrates and barrier layers. These engineered surfaces may be used for various optoelectronic devices such as touch panels, solar modules, displays, and mobile devices in traditional rigid forms as well as emerging flexible versions.

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Section: Photon Managementmentioning

confidence: 94%

Section: Photon Managementmentioning

confidence: 99%

Section: Photon Managementmentioning

confidence: 99%

Section: Photon Managementmentioning

confidence: 99%

Section: Photon Managementmentioning

confidence: 99%

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Challenges and Prospects of Bio-Inspired and Multifunctional Transparent Substrates and Barrier Layers for Optoelectronics

2020

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Hierarchical Design of Metal Micro/Nanohole Array Films Optimizes Transparency and Haze Factor

Bley

Semmler

Rey

et al. 2018

Adv Funct Materials

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Thin films containing metal nanohole arrays can be fabricated with high precision, and regular, tunable features via colloidal lithography. They are ideal model structures to study the relation between structural design and optoelectronic properties, for example as transparent, conducting electrodes, where the percolation threshold sets an upper limit on the achievable transparency. An important, but less systematically studied property of transparent conductive electrodes is the amount of scattered light, as described by the haze factor. Here, the influence of structural parameters on the resulting haze factor of metal nanohole array films is investigated. It is found that transmission, transparency, and haze factor cannot be independently controlled, and propose a new fabrication paradigm to optimize the optoelectronic properties of such films. Hierarchical metal micro/nanohole array films are designed, which combine precisely controlled and highly regular structural features at two length scales. These hierarchical structures maximize transparency while simultaneously providing low haze factors. Computer simulations based on finite elements and ray optics are in close agreement with the experimental results and reveal that the reduced haze factor results from a drastic decrease of grating diffraction efficiency in the hierarchical films.

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Antireflection Coatings Based on Randomly Oriented ZnO Nanowires

et al. 2023

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Glass is the most widely used transparent material for photovoltaic (PV) panels. Unfortunately, the glass introduces an additional interface and therefore optical losses, which can be mitigated using antireflection (AR) coatings. This article reports a scalable method to prepare AR coatings from ZnO nanowires (NWs) sorted by their size. The measured AR performance depends on the coating coverage and ZnO NW size, which is explained by scattering and absorption cross section simulations. Randomly oriented and size fractioned ZnO NWs with an average diameter of 19–30 nm and lengths of 121–273 nm demonstrate increased transmittance and decreased reflectance compared to a glass substrate in case of low coverage. The experimental PV modules with ZnO NW coatings show an 1.2% increase of the short circuit current. A strategy to decouple ZnO NW synthesis from AR coating preparation allows to tune NW reflectance and other optical properties by varying the length, diameter, and orientation of the constituent NWs. The proposed AR coating made from size‐sorted nanomaterials is not limited to ZnO and the method could be adapted to other materials and nanostructures.

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Using high haze (> 90%) light-trapping film to enhance the efficiency of a-Si:H solar cells

Cited by 12 publications

References 12 publications

Challenges and Prospects of Bio-Inspired and Multifunctional Transparent Substrates and Barrier Layers for Optoelectronics

Challenges and Prospects of Bio-Inspired and Multifunctional Transparent Substrates and Barrier Layers for Optoelectronics

Hierarchical Design of Metal Micro/Nanohole Array Films Optimizes Transparency and Haze Factor

Antireflection Coatings Based on Randomly Oriented ZnO Nanowires

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