Comparison of dye (oxazine and thiazine) materials as a photosensitizer for use in photogalvanic cells based on molecular interaction with sodium dodecyl sulphate by spectral study

Mall, Chandrakanta; Tiwari, Shachi; Solanki, Prem Prakash

doi:10.1016/j.jscs.2018.04.007

Cited by 20 publications

(12 citation statements)

References 53 publications

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“…In the visible and near‐infrared regions, the absorbance of PMMA decreases sharply until 1600 nm. From the literature, BCB dye in aqueous solution shows a wide absorption band centered around 622 nm 17 . It seems that this band is shifted 4 nm in the current study due to the interaction between the dye and PMMA as shown in Fig.…”

Section: Resultssupporting

confidence: 53%

“…It has a rigid and planar structure and contains three amine groups. BCB dye has a polycrystalline structure and is usually used as a redox catalyst, 16 photosensitizer 17 and a fluorescent indicator for measurements across biological membranes 18 . The reaction between BCB dye and heparin allows it to be found using a special spectrophotometer 19 .…”

Section: Introductionmentioning

confidence: 99%

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Electrical and optical properties of novel brilliant cresyl blue dye‐doped poly(methyl methacrylate) as selective cut‐off laser filters

El‐Gamal

Ismail

2020

Polymer International

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Dye doped polymer films of poly(methyl methacrylate) (PMMA) and brilliant cresyl blue (BCB) dye were synthesized using the solution casting technique. This work aims to investigate the influence of BCB dye doping on the structural, optical, dielectric and mechanical properties of PMMA. XRD reveals an increase in PMMA amorphicity with BCB loading. This suggests the solubility of BCB dye within PMMA. Fourier transform IR confirms the interaction between BCB dye and PMMA. The transmittance T of PMMA decreases with BCB doping and the cutoff transmission occurs in the ranges 200-366 nm and 560-660 nm for 2 wt% BCB doped film. The absorbance of PMMA deceases with ⊗ and loading BCB creates many absorption edges. The optical bandgaps of dye doped films are lower than that of PMMA. Urbach's energy increases from 0.52 to 0.86 eV on BCB doping. The dielectric constant ε 0 , dielectric loss ε 00 and AC conductivity ⊞ ac at room temperature as a function of frequency f, 100 Hz to1.0 MHz, and the doping level were studied. Loading dye increases ⊞ ac to higher values. The optical limiting results indicate that the dye doped films are highly attenuated for a laser beam of 638.2 nm. The dye incorporation enhances the mechanical performance of PMMA. It increases Young's modulus, tensile strength and elongation at break, which boosts the use of 1 wt% BCB doped film as a flexible laser attenuator. The excellent characteristics of novel BCB dye doped PMMA films present them as cutoff laser filters, laser attenuators, optoelectronic devices or in the semiconductor industry.

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Section: Resultssupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Electrical and optical properties of novel brilliant cresyl blue dye‐doped poly(methyl methacrylate) as selective cut‐off laser filters

El‐Gamal

Ismail

2020

Polymer International

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“…The reduced pigment molecule shed extra electron to the oxidized fructose reductant molecule to give original photosensitizer pigment molecules and reductant molecules in dark chamber. [ 29–31 ] One electron or two electron reduced sensitizer molecules are the electroactive substances in the light illuminated chamber. The nonilluminated chamber has the ground‐state sensitizer molecule as an electroactive species.…”

Section: Resultsmentioning

confidence: 99%

“…[ 25 ] Increased absorption and bathochromic shifts enhance the PG cells’ efficiency. Mall et al [ 30 ] have reported that the surfactant increases the physical properties such as stability and solubility of the photosensitizers, and rise in stability and solubility direct to the enhancement in the power output of the PG cells. Electrical data of the cells based on the dye photosensitizers showing surfactant‐induced red shifting in the light absorption due to greater stability in the excited state.…”

Section: Resultsmentioning

confidence: 99%

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Use of Pigments Present in the Crude Aqueous Extract of the Spinach for the Simultaneous Solar Power and Storage at Natural Sun Intensity

Koli

Sharma

2021

Adv Energy and Sustain Res

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The photogalvanic (PG) solar cell technique discussed in the present study has potential for both solar energy conversion and solar power storage at a time. The harvesting of the solar energy using costly, polluting, and synthetic dye sensitizers cannot be a sustainable method. Furthermore, the sensitizers including the natural sensitizers must be capable of showing simultaneous solar energy and conversion at natural sunlight intensity. With this aim, therefore, the PG cell using cheap and easily obtainable aqueous crude spinach extract for harvesting natural sunlight for solar power generation and storage is fabricated and studied. Herein, it is shown that this extract can also be an efficient sensitizer in the PG cell technique for harvesting energy from the natural sunlight by following the same cell fabrication principles as applicable for the synthetic dye photosensitizers at artificial and low illumination intensity. A very good open‐circuit potential (1.088 V), steady‐state current (50 mA cm−2), power output (13.05 mW cm−2), and efficiency obtainable (≈13%) at a peculiar external load resistance (322.2 Ω) are observed during the natural sunlight illumination.

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Simplified photogalvanic cell design with promise for the enhanced solar electricity generation and storage

et al. 2021

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Photogalvanicists have conventionally used complicated, multichambered, sophisticated, and very costly cell designs for solar electricity and storage. We authors have simplified cell design with encouraging electrical output as well.We authors have used a simple, cheap, and one-chambered cell design based on cylindrical glass tubes instead of the costly, conventional, and complex Hshaped glass tube-based cell fabrication design. The study has been done under similar electrolytic and illuminating conditions for different cell designs based on various blackened H-shaped glass tubes of the different diffusion lengths, nonblackened simple glass boiling tube, blackened simple glass boiling tube, and simple noncoated glass beakers. Nonblackened glass tube-based cell design has shown very good electrical output, that is, power 439 μW, current 2100 μA, potential 1045 mV, efficiency 6.1%, and storage capacity 130 minutes. Under similar chemical and illuminating conditions, the electrical output of cells fabricated of the simple glass tube is as good as that of the conventional cells made from the complex H-shaped glass tube. Furthermore, the cell design based on a simple cylindrical glass tube is three-edged more advantageous (in terms of the cost, electrical output, and ease of fabrication) over all other cell designs reported so far.

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Comparison of dye (oxazine and thiazine) materials as a photosensitizer for use in photogalvanic cells based on molecular interaction with sodium dodecyl sulphate by spectral study

Cited by 20 publications

References 53 publications

Electrical and optical properties of novel brilliant cresyl blue dye‐doped poly(methyl methacrylate) as selective cut‐off laser filters

Electrical and optical properties of novel brilliant cresyl blue dye‐doped poly(methyl methacrylate) as selective cut‐off laser filters

Use of Pigments Present in the Crude Aqueous Extract of the Spinach for the Simultaneous Solar Power and Storage at Natural Sun Intensity

Simplified photogalvanic cell design with promise for the enhanced solar electricity generation and storage

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