Carbon Nanosphere (CNs) has been successfully synthesized from bamboo fibers at low temperatures by carbonization and activation. For activation used Potassium Hydroxide (KOH) at temperature 105°C, 155°C, 205°C, 255°C and 305°C. X-Ray Diffraction (XRD) spectra shows hexagonal and amorphous phase and Fourier Transform Infrared (FTIR) spectra shows decrease C-O bond with increasing activation temperature. Transmission Electron Microscopy (TEM) image for activation temperature of 105°C confirmed that sources the formation of Carbon Nanosphere. In this study shows bamboo fiber has a high potential as a carbon nanosphere material.
There was research on Dye Sensitized Solar Cell to determine the effect of concentration Henna (Lawsonia inermis L.) leaves pigments on the efficiency of DSSC. The solar cell is made with a sandwich structure, the dye used is made in three variations of concentration is concentration of 10%, 20% and 30%. TiO2 deposition on ITO glass made using the method of doctor blade with a cell area of 2.25 cm 2 for 24 hours of immersion in the dye. Based on the results of measurements of I-V by using a source of light, DSSC efficiency for dye obtained with a concentration of 30% which is 0.003366667%, to dye with a concentration of 20% is 0.0033264% and to dye with a concentration of 10% which is 0.000312%. This research can be concluded that the higher the concentration of dye used, the higher the efficiency of DSSC generated.
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