Abstract
Abstract Plant extracts have been used mostly in the food and beverages industy; cosmetic and pharmaceutical industriey, but recent advancements in the characterization have provided increased options for the use of plant extracts in electronics and material science industries. The renewable nature, eco- friendly, and easy accessibility of plants has led to a push into plant extract research. This research aims to analyze the optical properties of aluminum-coated plant extracts. The extracts were gotten from Syzygium samarangense leaves using ethanol, methanol and butanol solution as the extracting liquid. The analysis was carried out using ultraviolet visible spectrometry to analyze the absorbance of the synthesized Syzygium samarangense extract. The bandgap of sample 1 (extract in methanol solution), sample 2 (extract in ethanol solution) and sample 3 (extract in butanol solution) was calculated as 2 eV, 2eV and 1.43 eV, respectively. The data presented is expected to aid further research into the applications of the analyzed plant extracts.
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