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All Journal Jurnal Pendidikan Fisika dan Teknologi Inovasi Fisika Indonesia (IFI)
Nugrahani Primary Putri
State University of Surabaya
Earth & Planetary Sciences Education Electrical & Electronics Engineering Materials Science & Nanotechnology Physics

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Karakteristik Elektrokimia Lapisan Tipis PANi Dengan Variasi Scan Rate Elektrodeposisi Frisellya Dirgantari; Nugrahani Primary Putri
Jurnal Inovasi Fisika Indonesia (IFI) Vol 12 No 2 (2023): Vol 12 No 2
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v12n2.p103-108

Abstract

Lapisan tipis Polianilin (PANi) telah berhasil dideposisi secara elektrokimia pada elektroda ITO. Proses elektrokimia dilakukan menggunakan variasi scan rate sebesar 10 mV/s, 25 mV/s, 50 mV/s, 75 mV/s, dan 125 mV/s. Variasi scan rate berpengaruh pada warna dan ketebalan lapisan PANi pada permukaan ITO. Semakin besar scan rate menyebabkan warna lapisan PANi semakin pudar. Hasil karakterisasi FTIR telah mengindentifikasi keberadaan fasa emeraldine salt (ES) pada lapisan PANi yang terdeposisi. Sedangkan dari karakterisasi CV memperlihatkan bahwa dengan meningkatnya scan rate akan memperlebar kurva CV lapisan PANi. Kata Kunci: Polianilin, elektrodeposisi, scan rate, ITO Abstract Polyaniline (PANi) thin films have been successfully deposited electrochemically on ITO electrode. The electrochemical process was carried out using variations scan rate of 10 mV/s, 25 mV/s, 50 mV/s, 75 mV/s, and 125 mV/s. Scan rate variations affect the color and thickness of the PANi layer on the ITO surface. The greater scan rate causes the color of the PANi layer to fade. FTIR characterization results have identified the presence of phases emeraldine salt (ES) on the deposited PANi layer. Meanwhile, CV characterization shows that increasing scan rate will widen the CV curve of the PANi layer. Keywords: Polyaniline, electrodeposition, scan rate, ITO
A Review of Polyaniline-based Radar Absorbing Materials: Mechanism, Structure, Performance, and Future Applications Yaaquuta Yusrinaa Salma; Amanda Novita Ramadhani; Nur Fitriani Indah Lestari; Nugrahani Primary Putri
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 12 No 1 (2026): January-June
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v12i1.10590

Abstract

Electromagnetic waves caused by the development of radar technology, wireless communications and modern electronic devices has the potential to disrupt the function of the device and impact human health, so solutions are needed such as microwave absorbing materials or radar absorbing materials (RAM) that are light and thin, have high absorption strength, wide absorption band, strong damping, and good stability and environmental resistance. With polyaniline (PANI) as the main focus for microwave absorbing materials because it is a conductive polymer with high conductivity, good chemical stability, low density, and ease of synthesis. , this article will review the latest developments of PANI-based microwave absorbing materials composited with several other materials with a focus on the absorption mechanism, dielectric and magnetic characteristics, and the effect of composite formation on performance improvement. Based on the literature, PANI composites with ferrite, metal oxide, MXene, graphene, and MWCNT show reflection loss (RL) up to −88.8 dB with effective the bandwidth reaches 14.6 GHz at a thin thickness of 1–3 mm. This performance improvement results from the synergy between dielectric and magnetic losses through the mechanisms of multiphase interface polarization, Debye relaxation, natural magnetic resonance, and impedance matching. optimal matching. With its lightweight, flexible characteristics and wide frequency range operation (S band– Ku band), PANI-based composites are excellent candidates for radar absorbing material (RAM), electromagnetic shielding (EMI shielding), and stealth technology applications in defense systems and modern electronic devices.
Co-Authors Amanda Novita Ramadhani Frisellya Dirgantari Nur Fitriani Indah Lestari Yaaquuta Yusrinaa Salma