Photogalvanic Output from Cells containing Organic Dye

Hann, R. A.; Read, G.; Rosseinsky, David R.; Wassell, P.

doi:10.1038/physci244126a0

Cited by 12 publications

(3 citation statements)

References 4 publications

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“…62 The photogalvanic cell for hydrogen generation was designed of an anode compartment made of two chambers connected by glass tubing 10 mm in inside diameter with a very fine glass frit. 63 The regular H-shaped photogalvanic cell with potential 27.2 mV and power 0.6 Â 10 À4 μW was first of all designed and reported by Hann et al 64 Few workers have reported current 58 μA and potential 720 mV from H-shaped cell having three electrodes, two working platinum electrode and one reference saturated calomel electrode. 65 Pokhrel and Nagaraja have reported maximum potential 200 mV and current 18 μA using a new type of cell design (named "Honda Cell") having two compartments with platinum electrodes, separated by a porous frit.…”

Section: Comparison Of the Present Cylindrical Cell Design With The Conventional Cell Designsmentioning

confidence: 99%

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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Section: Comparison Of the Present Cylindrical Cell Design With The Conventional Cell Designsmentioning

confidence: 99%

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

et al. 2021

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“…TH,+ = .TH + H (pK = 8.1 (8,26) the subject of numerous photochemical, photophysical, and photoelectrochemical investigations It Was further established that semiquinone is in respect of both, basic chemistry (1-16) and solar formed not only from 3THzZ+9 but also from 'TH+ energy utilization (3,(17)(18)(19)(20)(21)(22). The main primary by an electron transfer Process (7, 1 1 , 16).…”

Section: Introductionmentioning

confidence: 99%

Attack of H-atoms on aqueous thionine studied by pulse radiolysis

Solar¹,

Getoff²,

Solar³

et al. 1981

Can. J. Chem.

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SONIA SOLAR, NIKOLA GETOFF, WOLFGANG SOLAR, and FRANZ MARK. Can. J. Chem. 59,2719Chem. 59, (1981.The reaction mechanism of the H-attack on thionine (TH+) in aqueous solutions (5 X to 2 X mol dm+ TH+; 2 x mol dm-3 r-butanol, pH I and 4) was investigated by pulse radiolysis in combination with simulation by computation. Applying a least-squares fitting procedure it was possible to state that at pH 1,89.5% of the H-atoms react with TH+, k = (8.5 f 0.3) x lo9 dm3 mol-I s-I, to form semiquinone ('TH3Z+, Amax = 390nm, E,,, = 685 f 20 m2 mol-I; &770 = 720 mZ mol-' and Amax = 790nm, E, , , = 775 f 20mZ mol-I), which dismutates to TH+ and leucodye with 2k = (2.4 f 0.1) X lo9 dm3 mol-I s-I. In addition to this a second H-attack (10.5% H) occurs on the ring carbon of the dye with k = (1.0 f 0.1) x lo9 dm3 mol-' s-l, resulting in the production of H-adducts. These results are of interest for photogalvanic cells using thionine as a sensitizer., SONIA SOLAR, NIKOLA GETOFF, WOLFGANG SOLAR et FRANZ MARK. Can. J. Chem. 59,2719Chem. 59, (1981.Utilisant la radiolyse par pulsation combinee avec une simulation obtenue par le calcul, on a ttudie le mecanisme de la reaction 1 d'attaque du H sur la thionine (TH+) dans des solutions aqueuses (5 x a 2 x mol dm-' TH+; 2 x mol d m 3 rerr-butanol,

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“…[77,78] As one of the most well-known ones, PGE was first predicted in bulk materials as early as 1970s. [219,220] With the rapid development of materials science recently, it has been observed in many LDMs, such as nanoparticles, nanotubes/wires, 2D topological insulators, type-II Weyl semimetals, transition metal dichalcogenides (TMDs), etc., and has been developed into a tool for selectively resolving the band spin splitting, spin-valley coupling, and Berry curvature singularities. [107,[221][222][223][224][225][226][227] PGE describes the asymmetrical scattering of carriers by light to generate directional net current in a material.…”

Section: Type-iii Ldppsmentioning

confidence: 99%

Low‐Dimensional‐Materials‐Based Photodetectors for Next‐Generation Polarized Detection and Imaging

Xin,

Zhong,

Shi

et al. 2023

Advanced Materials

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The vector characteristics of light and the vectorial transformations during its transmission lay a foundation for polarized photodetection of objects, which broadens the applications of related detectors in complex environments. With the breakthrough of low‐dimensional materials (LDMs) in optics and electronics over the past few years, the combination of these novel LDMs and traditional working modes is expected to bring new development opportunities in this field. Here, we mainly focus on the state‐of‐the‐art progress of LDMs as polarization‐sensitive components in polarized photodetection and even the imaging, with emphasis on the relationship between traditional working principle of polarized photodetectors (PPs) and photoresponse mechanisms of LDMs. Particularly, from the view of constitutive equation, the existing works are reorganized, reclassified and reviewed. The perspectives on the opportunities and challenges are also discussed. We hope that this work can provide a more general overview in the use of LDMs in this field, sorting out the way of related devices for “more than Moore” or even the “beyond Moore” research.This article is protected by copyright. All rights reserved

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Photogalvanic Output from Cells containing Organic Dye

Cited by 12 publications

References 4 publications

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

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

Attack of H-atoms on aqueous thionine studied by pulse radiolysis

Low‐Dimensional‐Materials‐Based Photodetectors for Next‐Generation Polarized Detection and Imaging

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