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Effect of Sn concentration on structural and optical properties of zinc oxide nanobelts

2008; Elsevier BV; Volume: 128; Issue: 9 Linguagem: Inglês

10.1016/j.jlumin.2008.01.014

1872-7883

Rui Deng, X.T. Zhang,

Ga2O3 and related materials

We investigated structural and optical properties of Sn-doped ZnO nanobelts with different Sn concentrations. X-ray diffraction and Raman spectra showed that the Sn-doped ZnO nanobelts have wurtzite structure at low Sn concentration (<2.1 at%) and over 2.1 at% a part of them starts to have the inverse spinel Zn2SnO4 structure phase. In addition, for Sn-doped ZnO nanobelts, the photoluminescence spectra indicate that ultraviolet emission peak appears first a blue shift with the increase of Sn concentration due to Burstein–Moss effect and then exhibits a red shift due to band gap renormalization effect.