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<p style="text-align: justify;">Dye Sensitized Solar Cell (DSSC) with Fluorine deped Tin Oxide (FTO) substrat and nanosize-TiO2 layer sensitized by “dye” ,mangosteen pericarp extract, was succesfully fabricated. Gel-Electrolyte as electron regenerator was synthesized by adding Polyethylene Glycol (PEG) 1000 to electrolyte solution while nanosize-TiO2 was synthesized by co-precipitation method from TiCl3 solution. The crystal size of TiO2 characterized by X-Ray Diffraction is 10.5 nm in size. The solar absorbance of “dye” mangosteen pericarp was measured using UV-Vis Spectrophotometer and it showed that the dye can absorb photon at Near Ultraviolet (NUV) to yellow visible light. Nanosize-TiO2 based DSSC with gel-electrolyte successfully reached short circuit current up to 30.9 μA, open circuit voltage 398.3 mV and performed the long term stability. ©2017 JNSMR UIN Walisongo. All rights reserved</p>

A prototype of Dye Sensitized Solar Cell (DSSC) based TiO2 nanoparticles and mulberry (morus) extract as dye sensitizer on the ITO glass substrate has been produced. The study aims to determine the difference between the use of gel electrolyte and liquid electrolyte on its influence on DSSC performance. Sandwich cells were made consisting of a working electrode in the form of a conductive glass ITO deposited with TiO2 which was sensitized by a dye of mulberry extract, the opposite electrode in the form of a conductive glass ITO with carbon deposited, and the electrolyte in the middle of the two electrodes were liquid and one was gel. Irradiation was carried out on both samples by lighting halogen lamps. Tested the characteristics of voltage-time and current-time in both samples. The results obtained for higher voltage and current values in samples with liquid electrolytes, but for the period of stability, the samples with gel electrolytes showed better performance.

IntisariTelah dilakukan penelitian tentang pengaruh resonator terhadap bunyi slenthem berdasarkan sound envelope. Penelitian ini bertujuan untuk mengetahui karakteristik gamelan slenthem berdasarkan frekuensi nada 3 dan sound envelope nada tersebut. Dilakukan pengukuran pada nada 3 yang berpengaruh pada tiap-tiap resonator slenthem itu sendiri berdasarkan frekuensi yang muncul pada tiap variasi resonator. Kemudian pengukuran terhadap sound envelope, yang didapatkan dengan variasi resonator yaitu dengan satu resonator dengan waktu tercepat yaitu pada resonator ke-2 sebesar 5,8 sekon, sedangkan waktu terlama pada resonator ke-2 sebesar 10,6 sekon. Tanpa satu resonator dengan waktu tercepat yaitu tanpa resonator ke-4 sebesar 23,3 sekon, sedangkan waktu terlama yaitu tanpa resonator ke-3 sebesar 30,4 sekon. ABSTRACTResearching of resonator's effect towards slenthem sound based on sound envelope has been conducted. The purpose of this research is to investigate gamelan slenthem characteristic based on frequency of tone 3 and sound envelope of that tone. Measurements were taken at tone 3 which affect on each resonator slenthem itself based on each variation of resonator's frequency. Then measurements towards sound envelope. From the result of sound envelope obtained resonator variation with 1 the fastest time resonator on 2nd resonator at 5,8 seconds, while the longest time resonator on 2nd resonator at 10,6 seconds. Without 1 resonator with the fastest time is 4th without resonator at 23,3 seconds, while the longest time is 3rd without resonator at 30,4 seconds.