Experimental Analysis of the Light Wavelength’s Impact on the Performance of a Silicon Solar Cell

The main aim of this article is to analyse the Si solar cell’s behaviour when it is exposed to light of different colours. An experimental work, with 100 experimental tests, was carried out, using an RGB LED. In order to obtain better fitting of the characteristic curves’ results, we used a novel di...

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Bibliographic Details
Published in:Energies (Basel) 2024-05, Vol.17 (9), p.2090
Main Authors: Pinho Correia Valério Bernardo, Catarina Pinho Correia Valério, Marques Lameirinhas, Ricardo A. Marques, N. Torres, João Paulo N., Baptista, António, Marques Martins, Maria João Marques
Format: Article
Language:English
Subjects:
Analysis
colourimetry
d1MxP
Efficiency
Force and energy
Laboratories
Light emitting diodes
optics
optoelectronics
photovoltaic technology
Radiation
Silicon
solar cell
Solar energy
Temperature
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Summary:The main aim of this article is to analyse the Si solar cell’s behaviour when it is exposed to light of different colours. An experimental work, with 100 experimental tests, was carried out, using an RGB LED. In order to obtain better fitting of the characteristic curves’ results, we used a novel discrete model, d1MxP. The obtained results showed that all experimental points of the tests were inside the two triangles that connected the three theoretical primary colours and the three experimental primary colours in the chromaticity diagram. With this diagram, the colour purity could be determined, which presented values between 20% and 60%. The primary colours of the three different LEDs of the light source presented a dominant wavelength that corresponded to the peak wavelengths of the light source spectrum, which showed high purity. However, the obtained results show that mixing colours may not lead to an increase in the cell’s output power. Additionally, an increase in the cell’s temperature was observed, due to the surplus absorbed energy, which was converted into heat, being one of the causes of the cell’s efficiency reduction.
ISSN:1996-1073
1996-1073
DOI:10.3390/en17092090