Studies of effect of heterocyclic dyes in photogalvanic cells for solar energy conversion and storage: NaLS-ascorbic acid system

Abstract

The photogalvanic effect has been studied in three systems using photogalvanic cells and NaLS-ascorbic acid-azur A, NaLS-ascorbic acid-azur B, NaLS-ascorbic acid-azur C systems. The photopotential and photocurrent generated by these systems are 770⋅0, 971⋅0, 623⋅0 mV and 160⋅0, 185⋅0, 145⋅0 µA respectively. The effects of different parameters on the electrical outputs of the cell have been observed and current-voltage characteristics of the cell studied, and a mechanism has been proposed for the generation of photocurrent in photogalvanic cells. The conversion efficiencies for azur A, azur B and azur C are 0⋅5461, 0⋅9646 and 0⋅4567% and storage capacity 110, 135 and 95 min respectively.

Photogalvanic cells: comparative study of various synthetic dyes and natural photo sensitizers present in spinach extract

“…The power conversion efficiency of the optimal cell could be as large as 18% but it is unlikely that all the necessary conditions can be met, 6 and a sufficient range of the solar spectrum can be used. 7 Photogalvanic cells based on Chlorophyll-a (Chl-a) plated Pt electrode and Chl-a free Pt electrode, 8 various inorganic compounds, [9][10][11][12] micro-emulsions with micellar solution, 13 and various organic dye photosensitizers with organic reductants and surfactants [14][15][16][17][18][19][20][21][22][23][24][25][26] in doubly distilled water have been studied. In beginning, photogalvanics emphasized the importance of coated Pt electrode with Fe 2+ as reducing agent.…”

A review on synthesis of nitrogen-containing heterocyclic dyes for textile fibers - Part 1: Five and six-membered heterocycles

“…Heterocyclic-based materials are pervasive in various fields of life sciences [27][28][29][30][31][32][33][34][35]. Heterocyclic dyes have been utilized in many fields, such as inkjet printing, photovoltaics, photography, digital optical storage, photodynamic therapy, bioimaging [2,6,12,[36][37][38]. Azo dyestuffs are now used to generate nearly the whole range of color shades.…”

Role of Heterocyclic Dye (Methylene Blue) With Reductant and Micelles in Photogalvanic Cell for Solar Energy Conversion and Storage

“…Some researchers [10][11] have studied on how to enhance the performance and optimum efficiency of dye sensitized solar cell for solar energy conversion. A detailed of literature survey reveals that photogalvanic cell consisting of various dyes with reductant, mixed dyes with reductant and dye with reductant and surfactant for solar energy conversion and storage reported time to time [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. Recently some photogalvanic cells are developed by Meena and his co-workers [27][28][29] for generation of electrical energy from various photosensitiser and reductant.…”