KARAKTERISTIK ABSORPSI EKSTRAK KROKOT (Portulaca oleracea L.) SEBAGAI SENSITISER ALAMI UNTUK DYE-SENSITIZED SOLAR CELL (DSSC)

SITI KHUZAIFAH , NIM. 10630034 (2014) KARAKTERISTIK ABSORPSI EKSTRAK KROKOT (Portulaca oleracea L.) SEBAGAI SENSITISER ALAMI UNTUK DYE-SENSITIZED SOLAR CELL (DSSC). Skripsi thesis, UNIVERSITAS ISLAM NEGERI SUNAN KALIJAGA.

Preview	Text ( KARAKTERISTIK ABSORPSI EKSTRAK KROKOT (Portulaca oleracea L.) SEBAGAI SENSITISER ALAMI UNTUK DYE-SENSITIZED SOLAR CELL (DSSC) ) 10630034_bab-i_iv-atau-v_daftar-pustaka.pdf Download (3MB) | Preview
	Text ( KARAKTERISTIK ABSORPSI EKSTRAK KROKOT (Portulaca oleracea L.) SEBAGAI SENSITISER ALAMI UNTUK DYE-SENSITIZED SOLAR CELL (DSSC) ) 10630034_bab-ii_sampai_sebelum-bab-terakhir.pdf Restricted to Registered users only Download (1MB)

Abstract

It has been producted a solar cell based on TiO2 which is sensitized by krokot extract (Portulaca oleracea .L) as a photosynthesizer. The aim of this research are to know the optic characteristic of krokot extract, to know the thin-flim system of TiO2-krokot extract, to identify the functional group of krokot extract, and also to know the efficiency of krokot extract. The solar cell is formed by a sandwich structure, in which two electrodes flank the primary electrolyte that is containing redox I-/ based on PEG (Polyethylene Glycol). The working-electrode which is TiO2 layer on an ITO glass substrate is sensitized with dye krokot extract as the electron donor. The counter electrode is a layer of carbon. The fabrication cell is immersed with the dye-krokot extract for 1, 8, 18 and 26 hours respectively. The result of the UV-Vis shows that the absorption of wave-length from dye exstract of krokot is located in the visible region with the absorbance peak in 420,5 nm and 665,5 nm which are the peak of klorofil. For the UV-Vis solid system, there are the decreasing band gap that make the capability of absorption toward UV spectrum is large. Furthermore, in the functional group analysed by FT-IR, there are shiften-carbonil and hydroxyl group after they are sensitized. From the current and voltage test with I-V meter keithley 2400 is resulted that on the 26 hours immersion produces the highest efficiency of reaches which is 4.63768 x 10-3 %..

Share this knowledge with your friends :

Actions (login required)

View Item