Erfina Nur Rahayu, Eva Tri Agustina, Nazella Marva Ardani, Laili Arin Ramadhani, Nugrahani Primary Putri
Polyaniline (PANI) is a conductive polymer that proves to be an effective sensor material due to excellent sensitivity and response time, ease of synthesis, and adjustable electrical conductivity. This study aimed to determine the optimal material for detecting acetone gas. The Synthesis was performed using the electrodeposition method with a scan rate of 10 mV/s and 10 cycles on the ITO surface. This PANI thin film was characterized using Fourier Transform InfraRed (FTIR) to identify the functional groups and bonds, while its microstructure was examined through Optical Microscope (OM) and Scanning Electron Microscope (SEM). Furthermore the Four Point Probe (FPP) was conducted to evaluate the performance of the PANI thin film as sensor for acetone. Based on this study, the response time, recovery time, and sensitivity increased with increasing exposure to acetone gas. Sensing the PANI thin film to acetone gas was optimal at a gas level of 10 ppm with a response time of 84 seconds and a sensitivity of 8.9%. © 2025 Author(s).
Department of Physics, Faculty of Mathematics and Nature Science, Universitas Negeri Surabaya, Surabaya, 60231, Indonesia
