Abstract
The stability of hydrogen in ZnO is studied using hydrogenated nanowires by plasmatreatment. Enhanced near band edge UV emission and reduced defect level green emissionis observed after hydrogen plasma treatment. Through thermal stability tests,this effect is found to be stable at room temperature and nearly stable up to ∼ 500 K, but begins to deteriorate at higher temperature. The study of the irradiation stability ofthe hydrogen in ZnO nanowires shows that the hydrogen is stable under an electron beamwith an accelerating voltage lower than 5 kV, but is not stable under 10 kV or underan intensive laser beam. The results could benefit the further understanding ofthe role of hydrogen in ZnO and light-emitting devices based on hydrogenatedZnO.
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