Fa'aaliga fetu'una'i ma alava LED
O filaments LED, o se mea fou na faia e le Korea Institute of High Technology KAIST, e foliga mai e mafai ona na o le avea o ni lalaga fibrous, susulu, pe na o le faavae mo le fatuina o ie e faʻaalia ata. O fa'ata'ita'iga o fa'aaliga fetu'utu'una'i ua iloa i le taimi nei sa fa'avae i luga o se mea e fai si malo. E fai lava si ese o le faaiuga a tagata Korea.
Mo le faia o filament LED, e togi e saienitisi se mea filo e taʻua o le polyethylene terephthalate i totonu o se vaifofo o le poly(3,4-dioxyethylenethiophene) ma le sulfonated polystyrene (PEDOT:PSS) ona faʻamago lea i le 130°C. Ona latou toe fa'afo'i lea i totonu o se mea e ta'ua o le polyphenylene vinyl, o se polymer na fa'aaogaina i le fausiaina o fa'aaliga OLED. A maeʻa ona toe faʻagogo, o loʻo faʻapipiʻiina alava i se faʻafefiloi o le lithium alumini fluoride (LiF / Al).
Saienitisi, o loʻo faʻamatalaina a latou metotia i totonu o le tusi talaaga faʻapitoa Advanced Electronic Materials, faʻamamafaina lona aoga pe a faʻatusatusa i isi metotia o le faʻaogaina o mea faʻapipiʻi LED i fausaga faʻasolosolo laiti.
