In this paper, a thorough investigation of cadmium sulfide nanoparticle characteristics has been studied as a result of the wide attention and enormous application in a solar cell. Perovskite-sensitized solar cells (PSSCs) are a favorably effectual and sanitary hybrid, organic–inorganic solar cell device. The simple way uses synthesized cost-effective CdS quantum dots (QDs) via the sol–gel approach and also investigates their structural, electronic, and vibrational properties of CdS nanoparticles with the density functional theory method in B3LYP. Moreover, we use high-resolution transmission electron microscopy (HRTEM) techniques to confirm our calculations and acquire good agreement to the structural analysis of CdS QD formation. The maximum grain diameter is obtained from a HRTEM image, at ∼4 nm. The particle size analyzer that obtained ∼4 nm of CdS QD nanoparticles was determine via a dynamic light scattering study. The results demonstrated that the fabricated CdS QD-based dye-sensitized solar cell and PSSC represented a maximum power conversion efficiency (η) of 0.5 and 1.8% at 1 sun condition. This efficiency was improved by approximately 72%, associated with that of the reference cell.

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<p>Usual polymer composites are non-biodegradable and pollute the environment. Using natural fibers with polymers<br />based on renewable resources will allow many environmental issues to be solved. Therefore, world is as of now focusing<br />on alternate material sources that are environment friendly and biodegradable in nature. Owing to increasing natural<br />concerns, bio composite produced out of natural fiber and polymeric resin, is one of the late advancements in the<br />scientific business. This paper is focused on fabrication and mechanical behaviour of natural fiber-reinforced<br />biocomposite R P E B . It is shown that a property of the fibers also gives important indication regarding their 15 15 40 30<br />subsequent behaviour as reinforcement in composites.</p>