Outdoor ageing of the dye-sensitized solar cell under different operation regimes

Berginc, Marko; Krašovec, Urša Opara; Topič, Marko

doi:10.1016/j.solmat.2013.09.029

Cited by 35 publications

(41 citation statements)

References 37 publications

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“…Another relevant area where TiO2 is used as an electrode is that of Dye-Sensitized Solar Cells (DSSCs), that still face issues because of aging upon environmental exposure [23,24]. Therefore, a deeper understanding of the modifications over the whole solar spectrum of TiO2 upon aging is desirable also on the power generation side, in addition to that of energy saving.…”

Section: Introductionmentioning

confidence: 99%

TiO2 alterations with natural aging: Unveiling the role of nitric acid on NIR reflectance

Paolini

Sleiman

Pedeferri

et al. 2016

Solar Energy Materials and Solar Cells

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The development of photoactive materials with self-cleaning and depolluting qualities is a hot topic in materials science, given their impact on several technologies, in a wide range of contexts of applications. Anatase phase titanium dioxide (TiO2) is the largest used photocatalyst, with increasing applications ranging from air quality control to renewable energies, to green building materials for zero energy communities. Yet, it is partially transmissive in the near infrared (NIR), which negatively affects the solar reflectance of TiO2 containing materials. In this contribution we describe an unexpected increase in anatase near infrared (NIR) reflectance observed during environmental exposure. We unveil its complex mechanisms, based on the contact with nitric acid generated by NOx photocatalytic degradation, which causes partial reduction and decrease in crystallinity to TiO2. This may open the way for introducing multiple environmentally beneficial effects on TiO2 pollutants degradation, self-cleaning, and energy performance.

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Section: Introductionmentioning

confidence: 99%

TiO2 alterations with natural aging: Unveiling the role of nitric acid on NIR reflectance

Paolini

Sleiman

Pedeferri

et al. 2016

Solar Energy Materials and Solar Cells

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“…Boundary errors and type errors can both affect the reconstruction of I-V curve with cubic spline function. The influence from boundary errors can be shown as: (4) It can be shown in figure (4) that if the sampling errors (1'/0' 1'/1) at the circuit voltage and the short circuit current can be restrained, the influence from boundary errors will be greatly reduced. Since the open circuit voltage is of stable transient response when sampling, we can get it with multiple methods.…”

Section: Solar Cell Measuringmentioning

confidence: 99%

“…Solar cells are developed to be more efficient and cheaper [1][2][3]. However, solar cells are easily affected in a harsh outdoor environment while temperature, cloudy and dewing can 'weak' them [4][5][6][7]. Given the premise, it shows necessary to monitor the operational efficiency of solar cells in the outdoor environment.…”

Section: Introductionmentioning

confidence: 99%

Research on outdoor solar cell distributed monitoring with ZigBee wireless sensor network: Algorithms and application

Zheng¹,

Chen²,

et al. 2014

Proceedings of 2014 International Conference on Cloud Computing and Internet of Things

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I-V curve and MPP are key parameters for solar cell performance measuring. A low-cost testing system based on Zig bee for outdoor solar cell outdoor measuring is presented in this paper. The testing algorithm combining constant scale and incremental conductance algorithm is discussed. Interpolation method for I-V curve reconstruction and its error source are analyzed. This paper also reports the specific structure of our outdoor solar cell testing system. Using the developed algorithm and test system, we present a detailed numerical investigation and experiments about distributed outdoor solar cell measurement. The results show that this method can provide high-precision solar cell characters measuring with low complexity.Keywords-photovoltaic power system; 1-V curve measurement; maximum power point; wireless sensor networks; ZigBee I.

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“…After Grätzel introduced the DSSC technology, only a handful of reports actually show testing of DSSC outdoors . In general, outdoor testing is quite rare for the third generation photovoltaics, for instance regarding perovskite solar cells only two studies were found and both were quite short (days to weeks) .…”

Section: Introductionmentioning

confidence: 99%

Testing dye‐sensitized solar cells in harsh northern outdoor conditions

Lepikko

Miettunen

Poskela

et al. 2018

Energy Science & Engineering

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Here, we report on the behavior of dye solar cells in real‐life weather conditions from a northern outdoor test covering for the first time cell performance measurements in harsh conditions with varying weather from mildly warm conditions to freezing and snowy. The effect of different weather conditions on the cell performance is quantitatively investigated by using correlations coefficients of weather parameters to cell performance. No degradation was observed during the frosty period, but instead during the warmer, rainy periods with high moisture levels. Nevertheless, after 6 weeks of outdoor testing in varying harsh conditions, the cells maintained on average 88% of their initial efficiency. Tracking the cell performance during the aging showed that the test cells generated roughly as much current at subzero temperatures as at warmer temperatures. Investigations of the degradation reactions revealed that while photoelectrode degradation was the main cause of degradation during this test, the loss of charge carriers, which had only a minor effect on performance during the test, would likely become a major degradation factor during the next 1000 h of testing. Furthermore, the test showed that the cells even doubled their efficiency in low light intensity conditions compared with the standard reporting conditions. Thus, the overall conversion efficiency during the whole experiment reached up to 50% higher values compared with the results in standard testing conditions.

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Outdoor ageing of the dye-sensitized solar cell under different operation regimes

Cited by 35 publications

References 37 publications

TiO2 alterations with natural aging: Unveiling the role of nitric acid on NIR reflectance

TiO2 alterations with natural aging: Unveiling the role of nitric acid on NIR reflectance

Research on outdoor solar cell distributed monitoring with ZigBee wireless sensor network: Algorithms and application

Testing dye‐sensitized solar cells in harsh northern outdoor conditions

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