A low-temperature solution method was proposed for the site-selective growth of ZnO nanorods (NRs) and Au nanoparticles by making use of the wettability contrast of a graphene/graphene oxide (G/GO) template. Au nanoparticles were found to nucleate and grow selectively over a GO area of the G/GO template. ZnO NRs selectively grew on graphene regions of the template without growing the seeds required for selective growth. We demonstrated diode-like and field emission behaviors of the ZnO NRs selectively grown on a G/GO template, which showed good optical, electrical, and mechanical properties. These materials are potential candidates for the large-scale fabrication of flexible electrical and optical nano-devices.
Bibliographical noteFunding Information:
This work was supported by the Basic Research Program (2012R1A2A1A03006049 and 2009-0083540) and Global Frontier Research Center for Advanced Soft Electronics (2013M3A6A5073170) through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science and Technology.
All Science Journal Classification (ASJC) codes
- Materials Science(all)