Field emission properties of α-Fe_2O_3 nanotips prepared on indium tin oxide coated glass by thermal oxidation of iron film

摘要

Hematite (α-Fe_2O_3) nanotips have been successfully synthesized on a large area by thermal oxidation of iron film on indium tin oxide coated glass. The population density and aspect ratio of the α-Fe_2O_3 nanotips were controlled by varying preparation temperature in the range of 325-400 ℃. The field emission properties of α-Fe_2O_3 nanotips prepared under different temperatures were studied. Uniform and stable emission was obtained. Considering the simple preparation method and scalability for large area preparation, the α-Fe_2O_3 nanotips could be a promising field emitter for field emission display application.