In-situ, long-term operational stability of organic photovoltaics for off-grid applications in Africa

Emmott, Christopher J. M.; Moia, Davide; Sandwell, Philip; Ekins-Daukes, N. J.; Hösel, Markus; Lukoschek, Lukas; Amarasinghe, Charith; Krebs, Frederik C.; Nelson, Jenny

doi:10.1016/j.solmat.2016.01.036

Cited by 55 publications

(43 citation statements)

References 26 publications

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“…It should be noted here that UVcurable adhesive systems are typically based on epoxies or isocyanates, which can cause serious allergies and permanent skin damage in humans (see Figure 18). In another study, stability tests over more than 900 hours under illumination showed that singlesided lamination with UV-curable adhesive achieves better stability than double-side PSA lamination [161]. Long-term outdoor tests in Africa of double-side encapsulated large-area modules with hotmelt office lamination pouches proved the functionality of hotmelt as a glue, but failed due to the poor quality of the plastic film.…”

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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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.

Self Cite

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“…Where: and are respectively the effective density of states of electrons in the conduction band and the effective density the holes of states in the valence band 13,14 .…”

Section: Intrinsic Semiconductormentioning

confidence: 99%

“…The most widely used materials in the field of organic photovoltaics polymer-based mixture are poly(3hexylthiophene) (P3HT): [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). The active layer is heterojunction on volume of interpenetrating domains electron acceptor (PCBM) and electron donor (P3HT) 14 .…”

Section: Organic Photovoltaismmentioning

confidence: 99%

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Organic Semiconductivity and Photovoltaism: Concepts and applications

et al. 2019

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This work has for the objective, the theoretical explanation of the semi-conduction mechanisms as well as the photovoltaism in molecular organic materials by the creation of excitons and the transfer of Ï€ electrons of a donor (P3HT) to an acceptor (PCBM). In focusing on the broad technological applications of the molecular optoelectronic phenomena, this will provide the capital importance of the molecular electronic as a scientific and technical revolution which extends from the energy, has medicine up to the areas confusing nanotechnology and quantum electronics.

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“…Degradation due to temperature was quantified further in another study in Africa [16] which found that, in addition to dust, an Organic PV (OPV) system experienced a 20% decrease in performance due to temperature measured after the system operated for 2.5 years. Dolara [17] in his research in Italy investigating the degradation of PV modules found that the PV had snail trails, micro-cracks on PV cells.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Snail Trails and Cracks to Energy Output of Photovoltaic Modules at Lotas Off-Grid PV System

Sinaga¹,

Tanesab²,

Beily³

2019

Proceedings of the Proceedings of the 1st International Conference on Engineering, Science, and Commerce, ICESC 2019, 18-19 Oct

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This paper analyzes the impact of the snail trails and cracks phenomena in 200 Wp photovoltaic (PV) modules to energy output after five years of operation. Data collection was carried out through string voltage measurement, visual inspection, and Real Operating Conditions (ROC) test for permanently degraded PV especially the type of snail trail and crack degradation conducted at the Lotas Off-Grid PV System, South Central Timor Indonesia. For this paper, we applied quantitative methods to analyze data. The result shows that the permanent degradation caused by the snail trail will experience a maximum power decrease of 67 Watt per m 2 , while permanent degradation caused by crack will experience a power decrease of 551 Watt/m 2 .

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In-situ, long-term operational stability of organic photovoltaics for off-grid applications in Africa

Cited by 55 publications

References 26 publications

Improving, characterizing and predicting the lifetime of organic photovoltaics

Improving, characterizing and predicting the lifetime of organic photovoltaics

Organic Semiconductivity and Photovoltaism: Concepts and applications

The Impact of Snail Trails and Cracks to Energy Output of Photovoltaic Modules at Lotas Off-Grid PV System

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