Utilization of Mixed Naphthol Green B and Janus Green B Dyes as
Photosensitier in Photogalvanic Cell for Solar Energy Conversion and Storage

In this work, a new dye-sensitized solar cell (DSSC) was prepared using naphthol green B and Janus green B as photosensitizers and EDTA as reductant. A 210 μA of photocurrent and 1018 mV of photo-potential were generated using these dyes. The fill factor of 0.40, a conversion efficiency was observed to be 1.0028% and the power or maximum output of cell was calculated to be 213.78 μW. Because of the storage capacity in a cell, a DSSC can be used for a total of 180 min in dark. The properties of mixed photosensitize system EDTA-NGB-JGB were characterized and evaluated by UV-visible, fluorosencemeter, FESEM and XRD analysis. The photocurrent generation mechanism in photogalvanic cell was also discussed

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Use of mixed dyes in photogalvanic cells for solar energy conversion and storage: EDTA-methylene blue and thionine system

Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy ◽

10.1243/095765005x28599 ◽

2005 ◽

Vol 219 (5) ◽

pp. 315-320 ◽

Cited By ~ 8

Author(s):

K. M. Gangotri ◽

C Lal

Keyword(s):

Methylene Blue ◽

Acetic Acid ◽

Solar Energy ◽

Energy Conversion ◽

Conversion Efficiency ◽

Maximum Output ◽

Photogalvanic Effect ◽

Energy Conversion And Storage ◽

And Storage ◽

Photogalvanic Cell

The photogalvanic effect was studied in a photogalvanic cell containing Ethylene-diaminetetra-acetic acid as reductant and methylene blue and thionine as photosensitizers. The photopotential and photocurrent generated were 752.0 mV and 90.0 μA, respectively. The observed conversion efficiency was 0.43 per cent and the maximum output of cell was 67.68 μW. The photogalvanic cell can be used for 30 min in the dark. The effects of different parameters on electrical output of the cell were observed, and a mechanism for the generation of photocurrent in photogalvanic cells has also been proposed.

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Enhancement of Photogalvanic Effect of Toluidine Blue Dye using Sodium Lauryl Sulphate as an Efficient Additive for Solar Energy Conversion and Storage

Asian Journal of Chemistry ◽

10.14233/ajchem.2021.22903 ◽

2021 ◽

Vol 33 (3) ◽

pp. 527-530

Author(s):

Samarveer Singh ◽

Deep Shikha ◽

Vikky Singh ◽

Sushmita Gupta

Keyword(s):

Toluidine Blue ◽

Solar Power ◽

Storage Capacity ◽

Open Circuit ◽

Sodium Lauryl Sulphate ◽

Blue Dye ◽

Photocurrent Generation ◽

Energy Conversion And Storage ◽

And Storage ◽

Photogalvanic Cell

In photogalvanic cells, electron transfer reactions can lead to the inexpensive production of solar power with an inherent storage capacity because in solution, the ions involved act as mobile charges through diffusion. This study improved the storage capacity and solar power of photogalvanic cells comprising ethylenediamine acetic acid (EDTA), toluidine blue and sodium lauryl sulphate (NaLS) as a reductant, photosensitizer and surfactant, respectively. The observed maximum photocurrent, photopotential, and open circuit voltage, of the photogalvanic cell were 150 A, 743 mV and 1065 mV, respectively. The efficiency of conversion cells was approximately 0.2630%. In the dark, the storage capacity (t0.5) was 124 min for the photogalvanic cell. The optimization of the influence of different parameters such as variation in photosensitizer concentration, surfactant, reductant, pH, and temperature as well as the electrical output was performed. A mechanism was proposed for photocurrent generation in the photogalvanic cell.

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Enhanced Efficiency of Photogalvanic Cell based on Mixed Triphenylmethane Dyes

Asian Journal of Chemistry ◽

10.14233/ajchem.2020.22547 ◽

2020 ◽

Vol 32 (2) ◽

pp. 466-470

Author(s):

BIJENDRA SINGH ◽

CHHAGAN LAL

Keyword(s):

Storage Capacity ◽

Power Level ◽

Maximum Output Power ◽

Chemical System ◽

Maximum Output ◽

Patent Blue ◽

Photocurrent Generation ◽

Current Voltage ◽

And Storage ◽

Photogalvanic Cell

The study focused on the enhancement of solar power generation and storage capacity of a photogalvanic cell ethylene diaminetetraacetic acid as reductant, xylene cyanol FF and patent blue as photosensitizers. This chemical system with changed concentrations, a combination electrode and a very small Pt electrode was used to fabricate a modified photogalvanic cell. The modified cell showed greatly enhanced performance in terms of photopotential (868.0 mV), photocurrent (230.0 μA), efficiency (0.64 %) and the maximum output (power) of the cell was found to be 199.64 W. The photogalvanic cell can be used at this power level for 115 min in the dark due to the storage capacity of the cell. The effects of various parameters such as pH, reductant concentration, dye concentration, diffusion length, light intensity, and electrode area on electrical output of the cell were also investigated. The current-voltage (i-v) characteristics of the cell have been studied and a mechanism for the photocurrent generation in photogalvanic cell has also been proposed.

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