Photogalvanics: A sustainable and promising device for solar energy conversion and storage

Malviya, Amulyacharya; Solanki, Prem Prakash

doi:10.1016/j.rser.2015.12.295

Cited by 19 publications

(10 citation statements)

References 217 publications

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“…Murthy et al 25 have defined conversion efficiency as [(V oc × i sc × fill factor × 100)/(cross sectional area of electrode × Incident Sunlight Power)]. A review paper on photogalvanic cells have reported calculation of conversion efficiency as [(electrical power output (in watts) at its maximum power point × 100)/(input light in Wm −2 × electrode area of the photogalvanic cell in m 2 )] 26 . The fill factor of photogalvanic cells is disproportionately low in comparison to conversion efficiency.…”

Section: Methodsmentioning

confidence: 99%

Use of Congo red dye-formaldehyde as a new sensitizer-reductant couple for enhanced simultaneous solar energy conversion and storage by photogalvanic cells at the low and artificial sun intensity

Koli

Dayma

Pareek

et al. 2020

Sci Rep

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The photogalvanic cells (PG) are the promising and renewable electrochemical energy devices capable of doing the simultaneous solar power generation and storage. To realize the aim of the practical application of the PG cells in daily life, the electrical output of these cells has to be further enhanced to a level at least comparable to that of the photovoltaic cells. The present study of the PG cells based on so far unexplored Congo red dye-formaldehyde as a photosensitizer-reductant couple along with efficiency enhancer surfactant reagent (sodium lauryl sulfate) in the sodium hydroxide alkaline medium has shown greatly enhanced cell performance over published results. The present study has shown electrical cell performance of the PG cell as Ppp 782 μW, isc 3200 μA, Voc 1074 mV, and CE 11.02% at artificial and low illumination intensity. The storage capacity (t0.5) of the PG cell has been observed in the present study as 120 min in the dark. The study of variation of the different cell fabrication parameters has shown optimum cell performance at an optimal value of these cell fabrication parameters. The most plausible mechanism of the photo-generation of the current in PG cells is also proposed on the basis of observed potential values and published literature.

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Section: Methodsmentioning

confidence: 99%

Use of Congo red dye-formaldehyde as a new sensitizer-reductant couple for enhanced simultaneous solar energy conversion and storage by photogalvanic cells at the low and artificial sun intensity

Koli

Dayma

Pareek

et al. 2020

Sci Rep

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show abstract

“…For applicability of photogalvanic cells, both the functions of these cells have to be of high order. Malviya and Solanki has reported in a review that storage capacity was as low as 3 min, and which now stand increased to about 260 min . Such an increase in power storage capacity of these cells is very impressive and encouraging for future research.…”

Section: Solar Power Storage Efficiency Challenges and Future Resementioning

confidence: 95%

Photogalvanic cells: only solar cells having dual role of solar power generation and storage

Koli

2017

WIREs Energy & Environment

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Solar cell converts solar energy into electricity directly. Among such solar cells, the photogalvanic cells are unique as these are only solar cells that are capable of doing solar power generation and storage simultaneously. Therefore, such an inherent solar power storage capacity that too with good efficiency of these cells needs to be exploited for making solar cell technology a reliable source of power in the future. The fabrication and experimentation of photogalvanic cells is very simple to demonstrate its unique property. The power, short-circuit current, open-circuit potential, conversion efficiency, and power storage (in terms of half change time) for photogalvanic cells are reported of the order of 1159 μW, 4500 μA, 1.07 V, 14, and 260 min, respectively. However, to make photogalvanic cells realty in life for simultaneous solar power and storage, some challenges have to be tackled. Some of the challenges are photodecay of dye, corrosion of platinum (Pt), evaporation of liquid, breaking vulnerability of SCE/combination electrode, further need to increase the power and efficiency and storage, assembly operation of cells for augmentation of power, cell study in natural sunlight, and so on.

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“…3,7‐Dimethylaminophenothiazinium chloride, commonly known as Methylene Blue ( MB ), is an outstanding compound because of its plentiful potential applications, low toxicity and favorable electrochemical proprieties. However, although MB may be applied in several fields, which ranges from green energy (i.e. solar panels) to pharmaceutical (i.e.…”

Section: Introductionmentioning

confidence: 99%

3,7‐Bis(N‐methyl‐N‐phenylamino)phenothiazinium Salt: Improved Synthesis and Aggregation Behavior in Solution

et al. 2019

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In this paper, the optimization of the synthesis of 3,7‐bis(N‐methyl‐N‐phenylamino)phenothiazinium chloride with a detailed analysis of reaction parameters, i.e. solvent, temperature, amount of amine, as well as addition of a non‐nucleophilic base, is presented. Spectroscopic, electrochemical and computational data show that the presence of the two phenyl rings, directly bound on the PTZ+ core, inhibits the aggregation ability of the salt at concentrations up to 10–3 M. Furthermore, the introduction of an aromatic group in phenothiazinium‐based molecules appears strategic to introduce other useful functionalities, thus opening new opportunities in the drug design/discovery research field.

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Photogalvanics: A sustainable and promising device for solar energy conversion and storage

Cited by 19 publications

References 217 publications

Use of Congo red dye-formaldehyde as a new sensitizer-reductant couple for enhanced simultaneous solar energy conversion and storage by photogalvanic cells at the low and artificial sun intensity

Use of Congo red dye-formaldehyde as a new sensitizer-reductant couple for enhanced simultaneous solar energy conversion and storage by photogalvanic cells at the low and artificial sun intensity

Photogalvanic cells: only solar cells having dual role of solar power generation and storage

3,7‐Bis(N‐methyl‐N‐phenylamino)phenothiazinium Salt: Improved Synthesis and Aggregation Behavior in Solution

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