Cho, Se-Phin Jang, Sukjae Jo, Hae-Na Lee, Sang-A Bae, Sukang Lee, Sang Hyun Hwang, Junyeon Joh, Han-Ik Wang, Gunuk Kim, Tae-Wook 2024-01-20T05:03:00Z 2024-01-20T05:03:00Z 2021-09-03 2016-02 2050-7526 https://pubs.kist.re.kr/handle/201004/124484 In this study, we synthesized Au nanoparticles (AuNPs) in polyacrylonitrile (PAN) thin films using a simple annealing process in the solid phase. The synthetic conditions were systematically controlled and optimized by varying the concentration of the Au salt solution and the annealing temperature. X-ray photoelectron spectroscopy (XPS) confirmed their chemical state, and transmission electron microscopy (TEM) verified the successful synthesis, size, and density of AuNPs. Au nanoparticles were generated from the thermal decomposition of the Au salt and stabilized during the cyclization of the PAN matrix. For actual device applications, previous synthetic techniques have required the synthesis of AuNPs in a liquid phase and an additional process to form the thin film layer, such as spin-coating, dip-coating, Langmuir-Blodgett, or high vacuum deposition. In contrast, our one-step synthesis could produce gold nanoparticles from the Au salt contained in a solid matrix with an easy heat treatment. The PAN: AuNPs composite was used as the charge trap layer of an organic nano-floating gate memory (ONFGM). The memory devices exhibited a high on/off ratio (over 10(6)), large hysteresis windows (76.7 V), and a stable endurance performance (>3000 cycles), indicating that our stabilized PAN: AuNPs composite film is a potential charge trap medium for next generation organic nano-floating gate memory transistors. English ROYAL SOC CHEMISTRY GOLD NANOPARTICLES METAL NANOPARTICLES SIZE MORPHOLOGY DEVICES One step synthesis of Au nanoparticle-cyclized polyacrylonitrile composite films and their use in organic nano-floating gate memory applications Article 10.1039/c5tc04166j 1 JOURNAL OF MATERIALS CHEMISTRY C, v.4, no.7, pp.1511 - 1516 JOURNAL OF MATERIALS CHEMISTRY C 4 7 1511 1516 scie scopus 000370725200021 2-s2.0-84958213372 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article GOLD NANOPARTICLES METAL NANOPARTICLES SIZE MORPHOLOGY DEVICES Au nanoparticles Polyacrylonitrile organic floating gate memory transistors