Chitosan based in electron transport layer (ETL) for perovskite solar cell (PSC)

Mohd Satar, Nur Hidayah Syahira (2023) Chitosan based in electron transport layer (ETL) for perovskite solar cell (PSC). Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Perovskite Solar Cells (PSC) are a new phenomenon with high efficiency and have a simple fabrication process. PSC has a lengthy lifespan when compared to the other commercially available crystalline silicon solar cell. However, PSC is reported to have limited flexibility and a high testing cost, it is not fully equivalent to other commercialised solar cell. By varying the time and temperature to show their performance, structural, electrical conductivity, and optical properties, the synthetization of the chitosan from deacetylation process have been made. In this project, chitosan was synthesized from dried shrimp shell to be used at the electron transport layer (ETL) to analyse the performance of the perovskite solar cell. Particle size analyser, Fourier Transform Infrared Spectroscopy (FTIR) and 4-Probe testing were used to characterize the chitosan. A sample of white powder chitosan with the degree of deacetylation were obtained through FTIR spectra. Chitosan with the highest percentage of the degree of deacetylation was used to mix with graphene and zinc oxide. Through this mixture, the resistivity and resistance of the mixture achieved at 2.41k and 3.88k(ohm). Furthermore, a simulation of this PSC using OghmaNano software was also done by varying the electrical parameters. The highest efficiency of 5.86% with chitosan mixed with zinc oxide was obtained from this analysis.

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