Introduction to Flexible Glass Substrates

Garner, Sean; Li, Xinghua; Huang, Minghuang

doi:10.1002/9781118946404.ch1

Cited by 12 publications

(7 citation statements)

References 78 publications

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“…We tested our slot-die coating method on the R2R printing of perovskite on a 20 m long, 100 μm thick flexible Corning Willow Glass substrate. Indium zinc oxide (IZO) is R2R sputtered on the Willow Glass, as reported elsewhere, and general properties of flexible glass and device fabrication techniques utilizing it have likewise been reported. , It was shown previously that flexible PSCs with IZO as the transparent conductive oxide have achieved over 18% PCE . After R2R IZO coating, SnO 2 is slot-die R2R-coated from Sn(OCH(CH 3 ) 2 ) 4 in isopropanol (IPA) solution .…”

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confidence: 89%

Roll-to-Roll Printing of Perovskite Solar Cells

et al. 2018

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High efficiency combined with transformative roll-to-roll (R2R) printability makes metal halide perovskite-based solar cells the most promising solar technology to address the terawatt challenge of the future energy demand. However, translation from lab-scale deposition solution processing techniques to large-scale R2R methods has typically led to reduced photovoltaic performance. Here, we demonstrate large-scale, highly crystalline, uniaxially oriented, smooth perovskite films printed at room temperature and in the ambient environment. Confirmed with high speed in situ X-ray diffraction measurements, the perovskite films reach 98% of relative crystallinity at room temperature and display high texture within 1 s of the coating. We demonstrate an all-blade-coated metal halide perovskite cell with power conversion efficiency (PCE) up to 19.6%, a slot-die coated cell with a PCE of 17.3%, and a partially R2R slot-die coated flexible glass-based cell efficiency of 14.1%. The developed printing method can be applied to diverse perovskite compositions, enabling a variety of bandgaps to pave the way for the future R2R printing of highly efficient perovskite–perovskite tandem cells.

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confidence: 89%

Roll-to-Roll Printing of Perovskite Solar Cells

et al. 2018

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“…[29,74,75,[79][80][81][82] Flexible glass has drawn attention as an alternative substrate for PSCs because it can withstand temperatures of up to 600 C, WVTR is below 3 Â 10 À7 g m À2 day À1 , and is compatible with R2R processing system. [83] Willow flexible glass substrates were used to produce f-PSCs using the blade-coating method and an air-blowing technique to control the crystallization process. The f-PSCs showed PCEs of 19.72% and 15.86% for a small area and a module of 42.9 cm 2 , respectively.…”

Section: Substratesmentioning

confidence: 99%

Roll‐to‐Roll Processes for the Fabrication of Perovskite Solar Cells under Ambient Conditions

et al. 2021

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Every government, industry, and community have been striving to achieve low-or zero-carbon emissions following the announcement of their respective national strategies. The harnessing of solar energy, as one of nature's most abundant and limitless renewable energy resources, has been largely pursued for many years and continues to be one of the most viable options for producing electricity.The perovskite solar cell (PSC), an emerging higher-efficiency thin-film alternative to other existing commercial inorganic thin-film solar cells, has demonstrated significant potential by absorbing light from a broader range of wavelengths and being solution processable on flexible lightweight substrates. [1] A multitude of investors and industries have diverted their attention to closely monitoring the development of perovskite-based cells due to their low cost and simple fabrication, as well as the efficient energy yield.The perovskites used in PSCs have a general structure of ABX 3 . A is usually a monovalent cation like methylammonium (MA), formamidinium (FA), or cesium (Cs). B is a divalent metallic cation, for example, lead or tin. Finally, X is a halide anion, for example, iodide (I À ), bromide (Br À ), or chloride (Cl À ). [2][3][4] The wide variety of elements available to produce the perovskite structure confers unique optical and electronic properties, including a low-and flexible-energy direct bandgap, [5][6][7] high absorption coefficient, [4,8,9] and long charge diffusion length. [2,5,10] A low-crystallization energy barrier allows for the use of lowtemperature solution processing in manufacturing processes like roll to roll (R2R).The achievement of high performances at small scale demonstrates the enormous potential for commercialization of these PSCs. [11] The recent progress in the development of PSCs has shown PCEs of up to 25.2% for single-junction PSCs on rigid glass substrates. These are similar or higher values compared with thinfilm cells containing silicon, cadmium telluride (CdTe), and copper indium gallium selenide (CIGS). [1] However, these highest PCEs have been achieved in devices with active areas under 1 cm 2 (cell level) and fabricated using spin coating, which inherently is a technique unsuitable for the fabrication of PSCs at a large scale. [12] In previous years, there have been remarkable advances using scalable deposition methods (slot-die coating, blade coating, screen printing, and inkjet printing) for solution processing compatible with sheet-to-sheet (S2S) and R2R techniques. PSCs have presented PCEs of 19À20% on a lab scale [13,14] and values in the range of 10.6% and 15.3% for modules (areas 33-144 cm 2 ). [15][16][17][18][19][20] Nevertheless, it is desirable to fabricate PSCs by R2R manufacturing because it involves continuous fabrication, which provides significant savings in energy and high productivity in comparison with batch processes, other large-scale techniques (S2S), and vacuum deposition. [21] For instance, flexible perovskite solar cells (f-PSCs) manufactured with a R2...

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“…Glass substrates are widely used for encapsulations and considered the norm for evaluating alternative encapsulation methods. , The reduction of glass thickness and fabrication of flexible glass preserves the barrier properties of the glass since the fabrication process of normal and flexible glass is similar and both of them are made of molten glass that prevents the formation of pinhole defects . Although adhesives and glass frit bonding can be used for sealing the glass in the encapsulation process, there are still limitations in hermetically encapsulating devices using normal and flexible glass, such as edge sealing …”

Section: Durability Of Optoelectronic Devicesmentioning

confidence: 99%

“…Recent demands for lighter weight and flexibility for flexible optoelectronic applications have led to research into thinner glass. This not only helps reduce the overall weight of the device but may also enable flexibility as the bending stiffness is proportional to the thickness of the material to the third power …”

Section: Introductionmentioning

confidence: 99%

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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Introduction to Flexible Glass Substrates

Cited by 12 publications

References 78 publications

Roll-to-Roll Printing of Perovskite Solar Cells

Roll-to-Roll Printing of Perovskite Solar Cells

Roll‐to‐Roll Processes for the Fabrication of Perovskite Solar Cells under Ambient Conditions

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

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