Original ResearchPublished 21 September 2026Surface and nanostructural modifications of polytetrafluoroethylene by Au + irradiation for energy harvesting applicationsRabia · Naveed Afzal · Mohsin Rafique · Abdul-Sattar Nizami · Ali Asif · M. Zain-Ul AbdinFrontiers in Materialsdoi 10.3389/fmats.2026.1914747