Author/Authors :
Chen، نويسنده , , Q.W. and Qian، نويسنده , , Y.T. and Qian، نويسنده , , H. and Chen، نويسنده , , Z.Y and Wu، نويسنده , , W.B. and Zhang، نويسنده , , Y.H.، نويسنده ,
Abstract :
Thin films (0.12μm) of hematite (α-Fe2O3) were prepared on Si(111) and Si(100) substrates by hydrothermal treatment of a solution of iron nitrate containing urea in the temperature range of 100–200 °C for 4–24h. The films consisted of spherical grains for Si (111) and columnar grains for Si(100) with a typical grain size 10nm and 30nm × 5nm, respectively. Both films deposited on Si (111) and Si(100) have (101) preferred orientation.