Photogalvanic cells: only solar cells having dual role of solar power generation and storage

Abstract

Solar cell converts solar energy into electricity directly. Among such solar cells, the photogalvanic cells are unique as these are only solar cells that are capable of doing solar power generation and storage simultaneously. Therefore, such an inherent solar power storage capacity that too with good efficiency of these cells needs to be exploited for making solar cell technology a reliable source of power in the future. The fabrication and experimentation of photogalvanic cells is very simple to demonstrate its unique property. The power, short-circuit current, open-circuit potential, conversion efficiency, and power storage (in terms of half change time) for photogalvanic cells are reported of the order of 1159 μW, 4500 μA, 1.07 V, 14, and 260 min, respectively. However, to make photogalvanic cells realty in life for simultaneous solar power and storage, some challenges have to be tackled. Some of the challenges are photodecay of dye, corrosion of platinum (Pt), evaporation of liquid, breaking vulnerability of SCE/combination electrode, further need to increase the power and efficiency and storage, assembly operation of cells for augmentation of power, cell study in natural sunlight, and so on.

Production of Electricity and Improved Conversion Efficiency By Using Ionic Liquid in Photogalvanic Cell

“…While conversion e ciency known as the ability to convert the amount of forthcoming solar radiation from sun to electricity Eq (2). Both can be expressed as follow:…”

“…in 2017, solar energy accounted for 1.7% of electricity production in the world, and it is growing at a rate of 35% every year. [2]. General solar energy can easily be converted to electricity [3] through multiple different types of solar cells such as photovoltaic cells (PV), dye sensitized solar cells (DSSC) [4][5][6], perovskite cells (PRC), polymer cells (PC) and (PGC) [7].…”

Graphite counter electrode modified Tropaeolin‐O photo‐sensitized photogalvanic cells for solar power and storage

“…graphite counters electrode, hysteresis and cell photo-stability, photogalvanic cells, solar power storage, Tropaeolin-O sensitizer 1…”

“…With rise in the demand for the assured supply of the electricity for domestic and industrial use, the significance of highly efficient solar technology with storage capacity is gaining importance. 1 Solar power can be harvested directly through the different solar power techniques such as the perovskite cells, polymer cells, dye sensitized solar cells, [2][3][4] photovoltaic cells, photo-galvanic cells, 5 etc. In this regard, the photo-galvanic solar cells have some peculiar characteristics of both solar energy conversion and storage.…”

Tropaeline O‐oxalic acid‐benzalkonium chloride photogalvanic cells for solar energy conversion and storage

“…Thus, solar energy has to be available throughout the day–night with minimum economic and ecological cost with inherent power storage capacity. Therefore, the development of solar power techniques with higher electrical output, higher efficiency, and inherent power storage capacity is gaining importance as a goal for future research 5 . It is here that the PG cells have some promise for simultaneous storage capabilities with higher electrical output.…”