Enhanced growth and photoluminescence properties of SnxNy (x>y) nanowires grown by halide chemical vapor deposition

A systematic study of the nitridation of SnO2 nanowires grown by the vapor liquid solid mechanism

“…8. This is consistent with the fact that tin nitride NWs obtained by halide CVD [18,19] exhibited a broad-symmetric PL spectrum centered at 570 nm whose shape did not change between 77 and 300 K [18] and was very similar to that of SnO 2 NWs shown in Fig. 2.…”

“…It is very likely therefore that the NH 3 favors the reduction of the SnO 2 into Sn. However, unlike In or Ga, Sn does not react with NH 3 to give Sn 3 N 4 since as already explained above Sn 3 N 4 NWs were obtained only via the reaction of Sn with HCl and the formation of halides such as SnCl 2 and SnCl 4 which react readily with NH 3 [18,19].…”

“…A high-yield uniform distribution of tin nitride NWs with diameters of 100 nm and lengths of a few micrometers was obtained only via the formation of the halides SnCl 2 or SnCl 4 , which react readily with NH 3 [18,19]. Now as stated above MO NWs such as In 2 O 3 , b-Ga 2 O 3 and SnO 2 [20][21][22] can be grown easily with diameters of a few tens of nanometers, lengths of tens of micrometers and a high yield and uniformity in contrast to their nitride counterparts, which are considerably more difficult to obtain by comparison.…”

“…However there are very few investigations on Sn 3 N 4 nanowires (NWs), which could be used as nanostructured materials for the fabrication of third generation solar cells. To be exact tin nitride nanoparticles (NPs) have been obtained by Nand et al [17] while recently we obtained for the first time Sn-rich tin nitride NWs with diameters of 100 nm and lengths of a few micrometers [18,19,26] by halide CVD. In addition we have grown and investigated the optical properties of metal oxide (MO) nanowires, i.e.…”

Zn3N2 nanowires: growth, properties and oxidation

“…ZnO [4] and SnO 2 NWs [5]. More specifically, Sn 3 N 4 NWs [6,7] with diameters of 100 nm and lengths of 1 to 2 μm were only obtained recently by halide chemical vapour deposition. On the other hand Zn 3 N 2 NWs have been grown by Zong et al [8] via the direct reaction of Zn with 250 sccms of NH 3 at 600°C.…”