Conductive Glass Making for Dye Sensitized Solar Cell (DSSC)

• Main Author: Rendy
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/38306
• Institution: Institut Teknologi Bandung

cells, such as dye sensitized solar cell (DSSC). The advantage of DSSC is that it can generate current under low-lit condition, thus making it suitable in tropical areas with higher tendency of clouds. One of the components of DSSC is conductive glass, which is a transparent glass substrate covered semiconductor oxide. Characteristics that are wanted in a conductive glass for application in a DSSC are high transmittance and conductance. Semiconductor film usually used is flourine-doped tin oxide (FTO) films. An economic and scalable method used to deposit the FTO film is spray pyrolysis. In this study, a compression nebulizer and hotplate’s set point of 410oC are used, so that the glass’ surface temperature reaches 300oC. Transmittance is measured using spectrometer UV-VISNIR, and conductivity is measured using four point probe. Conductive glass’ morphology and composition are observed using Scanning Electron Microscope (SEM) and Energy Dispersive X-Ray (EDX). DSSC is analyzed through Electrochemical Impedance Spectroscopy (EIS) and I-V curve. Variables tested in this study are deposition time and intermittency. Deposition time tested are 5; 7,5; 10; 16; and 39 minutes. Deposition time of 7,5 minutes gives the highest Figure of Merit (FOM) of 7,83 x 10-3 ?-1. Intermittency is given by stopping the nebulizer during the deposition, with varying period and amount of intermittency. Period of intermittency tested are 10, 20, and 30 seconds, while amount of intermittency tested are 1, 2, and 3 times. Conductive glass made at 3 times @ 20 seconds intermittency resulted in the highest FOM of 19,29 x 10-3 ?-1. DSSCs are successfully made using conductive glasses produced with efficiencies of 1,9 x 10-4 % and 5,5 x 10-4 %.