Synthesis and optical properties of N–In codoped ZnO nanobelts

N–In codoped ZnO nanobelts were successfully synthesized via high-temperature chemical vapor deposition for the first time, using the mixture of In/ZnO as a precursor. The EDX spectrum showed that In was introduced into ZnO nanobelts. In order to better understand the optical properties of N–In codoped ZnO nanobelts, the Raman and low-temperature PL spectra of the undoped, In-doped and N–In codoped ZnO nanostructures were measured. By contrasting, N is incorporated into the nanobelts. The temperature dependent photoluminescence (PL) spectra were investigated. Their PL spectra in the temperature from 9 K to room temperature were dominated by an AoX emission of excitons bound to 2No–InZn acceptor complexes. The dissociation energy of the acceptor complexes is estimated to be 89–112 meV.