Journal of Advanced Materials Science and Engineering
Open AccessPhotovoltaic Characteristics of Amorphous Carbon Homojunction from Biomass by Simple Method
Authors: Budhi Priyanto, Ahmad Mubin, Bima Romadhon, Retno Asih, Sarayut Tunmee, Hideki Nakajima, Yoyok Cahyono, Darminto.
Abstract
Amorphous carbon homojunction have been successfully made from the palmyra sugar. Sample junction are made two configuration p-n and p-i-n on a glass substrate ITO. Samples junction were deposited using the nano-spraying method. Where p, n and i layer were made from boron, nitrogen and un-doped amorphous carbon, respectively. The thickness of each layer tested using SEM is in the order of hundreds of nanometers. The samples shows an increase in current and voltage value when illuminated with light compared dark condition. The relationship between current and voltage at p-n junction shows are curve that meets the rules as rectifier. When the sample junction is tested with direct sunlight at AM 1.5 conditions, it shows current and voltage relationship that meets the rules for the emergence oh the photovoltaic effect. The sample p-n junction shows maximum efficiency value of 0,0175% while the p-i-n junction shows 0,0705%. Both sample show that they are can function as solar cells. Sample p-i-n junction work better than p-n junction.
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