Improvement on the long-term stability of flexible plastic dye-sensitized solar cells

Lee, Kun‐Mu; Chiu, Wei‐Hao; Lu, Ming-De; Hsieh, Wen–Feng

doi:10.1016/j.jpowsour.2011.06.049

Cited by 36 publications

(27 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The long-term stability of the DSSCs is a critical issue in the successful application of the DSSC technology in the photovoltaic industry. 39,60,61,[91][92][93]110,[153][154][155][156][157][158] However, there are no well-established standards for evaluating the DSSC life time. The superior electrochemical and mechanical stability of CE materials ultimately contribute to the long-term stability of the DSSCs, whereas short-term stability is possibly rendered by the electrolyte or substrate interface.…”

Section: Long-term Stability Assessment Of Counter Electrodesmentioning

confidence: 99%

Stability assessment of alternative platinum free counter electrodes for dye-sensitized solar cells

Yun

Lund

Hinsch

2015

Energy Environ. Sci.

230

110

View full text Add to dashboard Cite

Platinum (Pt)-free counter electrodes (CEs) are economical alternative components of dye-sensitized solar cells (DSSCs) that have attracted much interest and become the focus of research, with an increasingly large number of scientific papers published in the last two decades. The development of these CE materials was driven mainly by desires to overcome the disadvantages of Pt, as follows: high cost, scarcity, corrosion by the I3\u7f/I\u7f redox couple electrolyte, and mismatch or non-effectivity in the I-free redox couple electrolyte. Although much more is now known about the principal physicochemical processes that occur during CE operation of the DSSC, the stability issues associated with CEs have not been matched by the exponential increase in CE research effort. This raises questions regarding the stability of the CEs whether the present research is sufficiently addressing the stability issues that limit DSSC performance. This review attempts to identify some of the key techniques that evaluate CE stability in DSSCs through a selective presentation of recent research highlights. Classical approaches could effectively assess the probability of using alternative Pt-free CE materials for commercial application, which offer strategies to overcome the current stability stalemate

show abstract

Section: Long-term Stability Assessment Of Counter Electrodesmentioning

confidence: 99%

Stability assessment of alternative platinum free counter electrodes for dye-sensitized solar cells

Yun

Lund

Hinsch

2015

Energy Environ. Sci.

230

110

View full text Add to dashboard Cite

show abstract

“…For the protected device, instead, an increase of up to 20 % of the initial value is observed for the photocurrents due to the break‐in of the cell (see above) and likely to increase the transparency of the electrolyte (resulting from I 3 − concentration lowering caused by the lower, with respect to the unprotected cell, but not negligible ingress of water via lateral permeation) which enables more photons to reach the dye. The FF decreases significantly and is the major cause for the 40 % efficiency loss …”

Section: Resultsmentioning

confidence: 99%

“…It has been reported that some electrolytes for DSCs can cause ITO degradation, that is, chemical etching, accelerated by the presence of water. It is also known that ingress of water can cause platinum dissolution and also accelerate corrosion reaction of metals which can thus cause drops in the FF of the kind we see.…”

Section: Resultsmentioning

confidence: 99%

A Systematic Investigation of Permeation Barriers for Flexible Dye‐Sensitized Solar Cells

et al. 2016

View full text Add to dashboard Cite

Dye solar cells (DSCs), in their flexible form, are prone to ageing due to ingress of gas as a result of the intrinsic permeability of polymer substrates. Thus, it is important to develop proper encapsulation strategies to limit degradation. Literature on flexible DSCs lacks comparative tests with different permeation barriers, including flexible ultrahigh barriers (UHB). We designed such tests and applied UHBs to flexible DSCs for the first time. We demonstrate that UHBs double the lifetime of cells with respect to those with none or less‐effective barriers. Degradation is due to a combination of electrolyte bleaching, dye detachment, and indium tin oxide (ITO) degradation. The reduced, though still noticeable, performance loss for UHB‐ and glass‐equipped cells can be mainly ascribed to lateral permeation of gas/water, suggesting that efficient solutions for edge encapsulation must be developed to extend lifetimes further.

show abstract

“…Due to all these factors depicted in Figure , it is not as easy to get good stability with plastics and thus the number of publications reporting the stability of plastic‐based devices is very small. At the moment, the current state‐of‐the‐art in the stability of plastic DSCs is maintaining efficiency of 2% for 200 h in high 95% humidity and for 1000 h in 1 Sun 60°C …”

Section: Stability Issues Related To Plasticsmentioning

confidence: 99%

Metallic and plastic dye solar cells

Miettunen

Halme

Lund

2012

WIREs Energy & Environment

View full text Add to dashboard Cite

Dye solar cells (DSC) are quite a new technology in photovoltaics. The traditional DSCs are prepared on conductively coated glass substrates in high temperature using a batch process. Manufacturing the cells on low cost metal and plastic substrates would enable significant cost reductions as well as roll-to-roll mass production. There is a selection of metals and possible conducting coatings for plastics with varying electrical, optical and chemical properties and price. The substrate has a dominant impact on the methods and materials that can be applied to make the cell and consequently on the resulting performance of the device. Furthermore, the substrates influence significantly the stability of the device. The main issue with plastics is their permeability whereas with metals, chemical stability in the electrolyte is the main concern. The leakage of electrolyte and the impact of water intake through the plastics can be affected by the material choices in particular with the electrolyte and dye composition. In the case of the metallic electrodes, the chemical stability can be improved by choosing a corrosion resistant metal, applying a blocking layer or changing to a less aggressive electrolyte. One major focus of the current research of the flexible DSCs is increasing the efficiency by improved low temperature preparation methods and materials especially for the photoelectrode. Another significant challenge is the development of non-corrosive electrolyte and dye combinations that work well even in the presence of significant amounts of water.

show abstract

Improvement on the long-term stability of flexible plastic dye-sensitized solar cells

Cited by 36 publications

References 30 publications

Stability assessment of alternative platinum free counter electrodes for dye-sensitized solar cells

Stability assessment of alternative platinum free counter electrodes for dye-sensitized solar cells

A Systematic Investigation of Permeation Barriers for Flexible Dye‐Sensitized Solar Cells

Metallic and plastic dye solar cells

Contact Info

Product

Resources

About