Improvement of polycrystalline solar cells operation under low solar radiation conditions by using ZnO nanostructured materials

This paper studies the effect of temperature, humidity and irradiance on the power generated by a photovoltaic solar cell. This was achieved using pyranometer for determining the solar radiation, wet and dry thermometer for measuring humidity, and digital multimeter for voltage and current measurement. The result of the study show that power generation increases with increase of solar irradiance. Additionally, changes of humidity level and temperature do not significantly affect solar power generation. Furthermore, it was also observed that high temperatures and higher humidity levels accelerate the corrosion process on the solar cells which reduces the efficiency of the cells.

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Synergy of Two Mid-temperature Solar-driven Reactions for Thermochemical Power System at Off-design Solar Radiation Conditions

Energy Procedia ◽

10.1016/j.egypro.2015.07.264 ◽

2015 ◽

Vol 75 ◽

pp. 931-936

Author(s):

Xiufeng Liu ◽

Hui Hong ◽

Hongguang Jin

Keyword(s):

Solar Radiation ◽

Power System ◽

Radiation Conditions

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Performance Improvement Study of Linear Photovoltaic Systems With Concentration of Solar Radiation

Advances in Environmental Engineering and Green Technologies - Handbook of Research on Energy-Saving Technologies for Environmentally-Friendly Agricultural Development ◽

10.4018/978-1-5225-9420-8.ch007 ◽

2020 ◽

pp. 164-190

Author(s):

Petr Alexandrovich Nesterenkov ◽

Alexander Gennadievich Nesterenkov

Keyword(s):

Solar Cells ◽

Solar Radiation ◽

Production Costs ◽

Cost Calculation ◽

Focal Region ◽

Efficiency Increase ◽

New Type ◽

Temperature Liquid ◽

Engineering Characteristic ◽

Optical Concentrator

A new type of linear cooled photodetectors is considered, of which in the focal region of the optical concentrator mirrors is installed an array of solar cells operating with the low-ratio solar concentration. This work is focused on the theoretical and experimental substantiation of the efficiency increase of photodetectors under conditions of an optimal combination between solar radiation concentration and heat transfer intensity of photovoltaic cells with heat carriers. The problem of obtaining a high temperature liquid due to the limitations of solar cells is solved by organizing the flow of fluid within the thermal collector channels in the focal region of an additional optical concentrator. A mathematical model of engineering characteristic calculation of the Ʌ - shaped photodetectors and cost calculation of electrical and thermal energy generation is presented. The research results are used in the development of industrial prototypes of photodetectors with a concentration of solar radiation and low production costs.

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Diatom frustules enhancing the efficiency of gel polymer electrolyte based dye-sensitized solar cells with multilayer photoelectrodes

Nanoscale Advances ◽

10.1039/c9na00679f ◽

2020 ◽

Vol 2 (1) ◽

pp. 199-209 ◽

Cited By ~ 5

Author(s):

T. M. W. J. Bandara ◽

M. Furlani ◽

I. Albinsson ◽

Angela Wulff ◽

B.-E. Mellander

Keyword(s):

Solar Cells ◽

Light Scattering ◽

Polymer Electrolyte ◽

Nanostructured Materials ◽

Gel Polymer Electrolyte ◽

Dye Sensitized Solar Cells ◽

Dye Adsorption ◽

Easy Task ◽

Dye Sensitized ◽

Sensitized Solar Cells

The incorporation of nanostructures that improve light scattering and dye adsorption has been suggested for dye-sensitized solar cells (DSSCs), but the manufacture of photonic and nanostructured materials with the desired properties is not an easy task.

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Conversion of Solar Radiation Into Electricity in Silicon Solar Cells: A Thermodynamic Assessment

Journal of Solar Energy Engineering ◽

10.1115/1.2929965 ◽

1991 ◽

Vol 113 (4) ◽

pp. 219-223 ◽

Cited By ~ 3

Author(s):

J. F. Osterle ◽

S. R. Swantner

Keyword(s):

Solar Cells ◽

Solar Radiation ◽

Thermodynamic Assessment ◽

Crystalline Silicon ◽

Electrical Power ◽

Type Material ◽

Silicon Solar Cells ◽

Crystalline Silicon Solar Cells ◽

Fundamental Properties ◽

P Type

The thermodynamic dissipations in crystalline silicon solar cells are identified and evaluated. The ratio of the exergy of the output electrical power to the exergy of the input solar radiation is the effectiveness of the solar cell. The input exergy is converted to the output exergy (the electrical power delivered) with a series of dissipations. These dissipations are identified and evaluated for crystalline silicon cells in terms of the thickness and certain fundamental properties of the light absorbing silicon semiconductor (in this case a P-type material). It is assumed that the N-type material is very thin and absorbs no radiation. For representative values of these properties and a range of thicknesses, it is found that the dissipations due to transmission and thermalization and in the photogeneration process are dominant. The dissipations due to the dark current and recombination are small.

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