Investigation of manganese–molybdenum–diethyldithiocarbamate complex as a potential system for solar energy conversion

Abstract

Manganese-molybdenum-diethyldithiocarbamate [MnMoO (Et dtc) (H O)] +Et dtc"diethyldithiocarbamate, complex has exhibited reversible photogalvanic behaviour in aqueous dimethylformamide medium when studied in a Honda cell. The photogalvanic behaviour has been further investigated by varying the pH, temperature and photosensitizers. UV, visible and sunlight were used as the radiation sources. A maximum potential of 345 mV was obtained at 80°C in visible light. The system was found to be reversible for several cycles. A photoelectrochemical cell was constructed by coupling a charged nickel electrode with the complex electrode which incorporates the experimental compound in acetylene black on a nickel substrate. A maximum potential of 1)08 V with 80 A current was obtained when irradiated with tungsten lamp.

Simultaneous electrochemical solar power generation and storage using metanil yellow-formic acid as a new sensitizer-reductant couple in photogalvanic cells

“…24 The photogalvanic behaviour has been found to be reversible for several cycles. 47 This reversible behaviour is subject to the limitations imposed by the second law of thermodynamics. The ideal reversibility can be achieved only when the loss of power is zero, and that can occur only when the resistance, friction, dissipation, etc., are zero; however, this position is impossible.…”

Sodium Lauryl Sulphate Enhanced Solar Energy Conversion by Photogalvanic Effect of Rhodamine B‐Fructose in Artificial Light

“…Therefore, the optimum performance of the cell can be obtained by carefully selecting the optimal values of these variables which can be explained by the dye molecules capable of absorbing photons near Pt electrode, diffusion, hindrance, etc . [16][17][18][19][20][21][22][23][24][25][26][27][28] The increase in cell parameters like i sc , P pp , i pp and CE was observed with increase in concentration of the dye up to 2.8 x 10 À5 M, and beyond this concentration, the decrease in these parameters was found ( Table 1). Below this optimal concentration of dye, the number of dye molecules available for photon absorption is less in number to lead to lower current and power.…”