Optical and Gas Sensor Properties of  PAN:PPy:Gr Nanocomposites. Iraqi Journal of Applied Physics, [S. l.], v. 20, n. 2A, p. 245–253, 2024. DOI: 10.2025/0aaswg74. Disponível em: http://ijap-iq.com/index.php/ijap/article/view/85. Acesso em: 27 jun. 2026.