PL study of oxygen defect formation in ZnO nanorods
Photoluminescence (PL) study of needle-like ZnO nanorods grown under standard and oxygen-rich conditions is presented. The yellow-orange band at ?580nm increases with excess oxygen during growth. Subsequent annealing in a reducing atmosphere shows the disappearance of this band. The yellow-orange emission is attributed to oxygen interstitials (Oi).
zno nanorods photoluminescence annealing