Ordered ZnO nanorod arrays were epitaxially grown on GaN substrates by a hydrothermal method.The patterned template was made by transferring a self-assembled close-packed monolayer of polystyrene(PS)nanospheres onto G...Ordered ZnO nanorod arrays were epitaxially grown on GaN substrates by a hydrothermal method.The patterned template was made by transferring a self-assembled close-packed monolayer of polystyrene(PS)nanospheres onto GaN substrates.Then magnetron sputtering of SiO_(2)was used to mediate the size of PS nanospheres by plasma etching and form periodic seed sites for the following ZnO growth.It was observed that the size of ZnO nanorods could be varied by changing the temperature of hydrothermal growth,and the relationship between height and diameter of nanorods versus growth temperature was studied.This work provides a potential low-cost hydrothermal method for the preparation of ordered semiconductor nanorod arrays.展开更多
Ordered ZnO nanorod arrays were hydrothermally synthesized on a patterned GaN substrate formed by a nanosphere lithography method.Firstly,polystyrene(PS)nanospheres were used to self-assemble a close-packed monolayer ...Ordered ZnO nanorod arrays were hydrothermally synthesized on a patterned GaN substrate formed by a nanosphere lithography method.Firstly,polystyrene(PS)nanospheres were used to self-assemble a close-packed monolayer on the surface of water.Then the monolayer was transferred onto a GaN substrate.Subsequently,magnetron sputtering of SiO2 was used to reduce the size of PS nanospheres and cover the interstitial space between PS nanospheres by SiO_(2) at the same time.After removing the PS nanospheres,periodic seed sites were accomplished on the GaN substrate for ZnO growth.Finally,ordered ZnO nanorod arrays,perpendicular to the substrate,were grown on GaN substrates by a hydrothermal method.This work provides a potential low-cost hydrothermal method for the preparation of ordered semiconductor nanorod arrays.展开更多
基金National Natural Science Foundation of China(No.21703031)Shanghai Natural Science Foundation,China(No.20ZR1401700)。
文摘Ordered ZnO nanorod arrays were epitaxially grown on GaN substrates by a hydrothermal method.The patterned template was made by transferring a self-assembled close-packed monolayer of polystyrene(PS)nanospheres onto GaN substrates.Then magnetron sputtering of SiO_(2)was used to mediate the size of PS nanospheres by plasma etching and form periodic seed sites for the following ZnO growth.It was observed that the size of ZnO nanorods could be varied by changing the temperature of hydrothermal growth,and the relationship between height and diameter of nanorods versus growth temperature was studied.This work provides a potential low-cost hydrothermal method for the preparation of ordered semiconductor nanorod arrays.
基金National Natural Science Foundation of China(No.21703031)Shanghai Natural Science Foundation,China(No.20ZR1401700)。
文摘Ordered ZnO nanorod arrays were hydrothermally synthesized on a patterned GaN substrate formed by a nanosphere lithography method.Firstly,polystyrene(PS)nanospheres were used to self-assemble a close-packed monolayer on the surface of water.Then the monolayer was transferred onto a GaN substrate.Subsequently,magnetron sputtering of SiO2 was used to reduce the size of PS nanospheres and cover the interstitial space between PS nanospheres by SiO_(2) at the same time.After removing the PS nanospheres,periodic seed sites were accomplished on the GaN substrate for ZnO growth.Finally,ordered ZnO nanorod arrays,perpendicular to the substrate,were grown on GaN substrates by a hydrothermal method.This work provides a potential low-cost hydrothermal method for the preparation of ordered semiconductor nanorod arrays.
