New barrier encapsulation and lifetime assessment of printed organic photovoltaic modules

Weerasinghe, Hasitha; Vak, Doojin; Robotham, Benjamin; Fell, Christopher J.; Jones, David J.; Scully, Andrew D.

doi:10.1016/j.solmat.2016.04.051

Cited by 32 publications

(20 citation statements)

References 33 publications

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“…2,9,30,31 A general strategy to address this challenge is to apply a glass or plastic-based encapsulation layer to act as a physical barrier to impede the ingress of oxygen (alongside humidity), thereby substantially reducing the oxygen-induced degradation. 32 However, glass encapsulates significantly increase fabrication costs and limit the flexibility of OSCs, while the relatively lower cost (which can still account for ~ two-thirds of total module costs 33 ) plastic encapsulates offer only a partial barrier to this oxygen diffusion. It is therefore of vital importance to enhance the intrinsic stability of OSCs under illumination and oxygen to further advance their commercialisation potential.…”

Section: Photochemical Stability -Light and Oxygen Exposure 21 Intromentioning

confidence: 99%

From fullerene acceptors to non-fullerene acceptors: prospects and challenges in the stability of organic solar cells

et al. 2019

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Section: Photochemical Stability -Light and Oxygen Exposure 21 Intromentioning

confidence: 99%

From fullerene acceptors to non-fullerene acceptors: prospects and challenges in the stability of organic solar cells

et al. 2019

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“…The development of secure, inexpensive and effective encapsulation packages remains a real challenge. Weerasinghe et al developed an encapsulation strategy based on commercial available barrier films and adhesives and used this to package fully printed OPV modules that showed limited efficiency loss after 13 months outdoor operational testing. The modules experienced harsh weather conditions during outdoors testing, including ambient temperatures ranging from −1 to 45 °C, heavy rain and hailstorms.…”

Section: Outdoor Lifetime Testsmentioning

confidence: 99%

Current Status of Outdoor Lifetime Testing of Organic Photovoltaics

et al. 2018

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Performance degradation is one of the key obstacles limiting the commercial application of organic photovoltaic (OPV) devices. The assessment of OPV stability and lifetime are usually based on simulated degradation experiments conducted under indoor conditions, whereas photovoltaic devices experience different environmental conditions under outdoor operation. Besides the intrinsic degradation of OPV devices due to the evolution of optoelectronic and morphological structure during long‐term operation, outdoor environmental changes can impose extra stresses and accelerate the degradation of OPV modules. Although outdoor studies on long‐term OPV stability are restricted by the long data collection times, they provide direct information on OPV stability under mixed degradation stresses and are therefore invaluable from the point of view of both research and practical application. Here, an overview of the current status of outdoor lifetime studies of OPVs is provided. After a summary of device lifetime extrapolated from indoor studies, outdoor lifetime testing platforms are introduced and the operational lifetime of various OPV devices are reviewed. The influence of climate and weather parameters on device performance and burn‐in phenomena observed during the degradation of OPVs is then discussed. Finally, an outlook and directions for future research in this field are suggested.

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“…Edge sealing of continuously coated and cut solar cell modules was found to be highly important for the lifetime and stability of large-scale OPVs [105,165,166] and perovskite solar cells [167]. In particular, when Weerasinghe et al described 'hand lamination' of small R2R processed solar cell modules either by PSA lamination or by hotmelt (Ethylene-vinyl acetate (EVA) adhesive) combined with barrier gasket applied along the perimeter of the OPV device, they showed an improved stability in both cases stressing the importance of the edge sealing [105,166]. It should be mentioned here that no reference studies were presented using only the hotmelt, so it is difficult to evaluate how much the increased stability can be ascribed to the introduction of the extra edge sealing gasket and how much can be ascribed to the EVA hotmelt adhesive.…”

Section: Upscaling and Packagingmentioning

confidence: 99%

Improving, characterizing and predicting the lifetime of organic photovoltaics

Gevorgyan¹,

Heckler²,

Bundgaard³

et al. 2017

J. Phys. D: Appl. Phys.

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This review summarizes the recent progress in the stability and lifetime of organic photovoltaics (OPVs). In particular, recently proposed solutions to failure mechanisms in different layers of the device stack are discussed comprising both structural and chemical modifications. Upscaling is additionally discussed from the perspective of stability presenting the challenges associated with device packaging and edge protection. An important part of device stability studies is the characterization and the review provides a short overview of the most advanced techniques for stability characterization reported recently. Lifetime testing and determination is another challenge in the field of organic solar cells and the final chapters discuss the testing protocols as well as the generic marker for device lifetime and the methodology for comparing all the lifetime landmarks in one common diagram. These tools were used to determine the baselines for OPV lifetime tested under different ageing conditions. Finally, the current status of lifetime for organic solar cells is presented and predictions are made for the progress in near future.

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New barrier encapsulation and lifetime assessment of printed organic photovoltaic modules

Cited by 32 publications

References 33 publications

From fullerene acceptors to non-fullerene acceptors: prospects and challenges in the stability of organic solar cells

From fullerene acceptors to non-fullerene acceptors: prospects and challenges in the stability of organic solar cells

Current Status of Outdoor Lifetime Testing of Organic Photovoltaics

Improving, characterizing and predicting the lifetime of organic photovoltaics

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