Mechanisms of green emission from ZnO films prepared by rf magnetron sputtering

The ultraviolet emission mechanism of ZnO thin film fabricated by sol–gel technology

“…Nevertheless, there were some zinc or oxygen ions still existed as interstitial in ZnO film, which might act as non-radiative recombination centers and reduce the emission intensity. As reported, 14 the improved crystallinity can decrease the non-radiation recombination and increase the radiation recombination for carriers and avail the existence of the free exciton. Similar results were also obtained in this study.…”

Structural and optical properties of zinc nitride films prepared by rf magnetron sputtering

“…ZnO is a promising material for light emitting [5], and it is very important to prepare both p-type and n-type ZnO of high quality [6]. The n-type ZnO films with different donors as dopant have been prepared by sputtering [7][8][9].…”

Na mole concentration dependence on optical p-type behaviors of Na-doped ZnO nanowires

“…2(c) presents the near band-edge (NBE) emission spectra of 15 mmol, 5 mmol, and 1 mmol Na-doped ZnO NWs at T ¼ 10 K. It is well-known that a PL spectrum of undoped ZnO usually provides two main peaks of NBE (w380 nm) and green (w530 nm) emissions. The origin of the green emission is attributed to oxygen vacancies and Zinc interstitials [22,23]. However, the inset of Fig.…”