In　the　time　of　Internet　of　Things　(IoT),　alternating　current　electroluminescence　(ACEL)　has　unique　advantages　in　the　fields　of　smart　display　and　human–computer　interaction.　However,　their　reliance　on　external　high-voltage　AC　power　supplies　poses　challenges　in　terms　of　wearability　and　limits　their　practical　application.　This　paper　proposed　an　innovative　scheme　for　preparing　a　feather　triboelectric　nanogenerator　(F-TENG)　using　recyclable　and　environmentally　friendly　material.　The　highest　open-circuit　voltage,　short-circuit　current,　and　transferred　charge　of　SF6-treated　F-TENGs　can　reach　449　V,　63　µA,　and　152　nC,　which　enables　easy　lighting　of　BaTiO3-doped　ACEL　devices.　Using　a　human　electrical　potential,　a　single-electrode　F-TENG　is　combined　with　ACEL　device　for　self-powered　fingerprint　recognition　display.　These　works　achieve　self-powered　flexible　wearable　ACEL　devices,　which　are　not　only　efficient　and　portable　but　also　have　good　application　prospects　in　the　human–computer　interaction,　functional　displays,　and　wearable　electronic　devices.　©　Tsinghua　University　Press　2023.