Growth and luminescence of oriented nanoplate arrays in tin doped ZnO

Abstract

Sintering of a ZnO–SnO2 mixture under argon flow leads to the growth of microrods on the sample surface, which are formed by oriented stacks of nanoplates. Energy dispersive spectroscopy and cathodoluminescence (CL) in the scanning electron microscope show that the stacks of nanoplates consist of Sn doped ZnO. The stacks of nanoplates have well defined orientations relative to the growth axis of the rod. The formation of the nanoplates, which is not observed when undoped ZnO is used in the same process, is attributed to the stresses generated by the presence of Sn atoms in the rods.

Al doped ZnO nanoplate arrays and microbox structures grown by thermal deposition

“…Most of the studies on Al doped ZnO deal with structural, electrical, and optical properties of thin films grown by methods such as sol-gel 3,4 sputtering [5][6][7][8] or spray pyrolysis, 9 but there are few reports on elongated nanostructures. The increasing interest in one-dimensional nanostructures of doped ZnO to obtain structures with improved optical or electrical properties has lead to the synthesis of ZnO nanowires or nanobelts doped with Sn, 10,11 In, 12,13 Ga, 14 Mn, 15 and other elements. There are few reports on Al doped nanostructures.…”

“…19 In the present work ZnO:Al nanoneedles and different arrays of planar nanostructures have been grown by thermally treating a compacted mixture of ZnO and Al 2 O 3 powders under argon flow. This method has been reported to lead to the growth of elongated nanostructures or nanoplates of oxides such as ZnO, 11,20 24 The obtained Al doped nanostructures have been characterized by x-ray diffraction ͑XRD͒, scanning electron microscopy ͑SEM͒, x-ray energy dispersive spectroscopy ͑EDS͒ in SEM, cathodoluminescence ͑CL͒ in SEM, and transmission electron microscopy ͑TEM͒.…”

Thermal growth and structural and optical characterization of indium tin oxide nanopyramids, nanoislands, and tubes

“…This method has been previously reported to lead to the growth of elongated structures of different semiconductor oxides on the surface of the sample, so that neither a catalyst nor a foreign substrate is used. [8][9][10][11][12][13] In Ref. 8, the growth of SnO 2 microand nanotubes with rectangular cross section was reported, while in the case of In 2 O 3 , 11 wires, necklace-and arrowshape structures were grown from InN.…”

Controllable fabrication and optical properties of Sn-doped ZnO hexagonal microdisk for whispering gallery mode microlaser

“…Latest research reveals that the Sn doping can maintain the wurtzite ZnO lattice and can present platelike structure. [25][26][27][28] Compared with indium material, Sn is much cheaper and widely exists on the earth. So, we attempted to grow hexagonal Sn doped ZnO (ZnO:Sn) microdisks for WGM microlasers.…”