Abstract
Three-dimensional (3D) nanostructured p-n junctions have been fabricated by growing p-type La0.5Pr0.17Ca0.33MnO 3 (LPCMO) manganite thin film on n-type ZnO nanorod arrays using pulsed laser deposition. The 3D LPCMO nanofilm/ZnO nanorod p-n junctions exhibit excellent room temperature rectification performance with a high rectification factor of ∼1650 at ±5.0 V, approximately 14 times larger than that of manganite film- and ZnO nanowires (or film)-based layered p-n junctions. The ferromagnetic phase transition temperature TC for the LPCMO nanofilm is significantly (∼28 K) higher than that of 2D LPCMO films directly grown on Si substrates, which is interpreted in terms of the nanograin-induced surface effect and lattice strain effect. The large portion of magnetically frozen phase establishes the existence of strong electronic phase separation in the 3D nanofilm. This journal is
| Original language | English |
|---|---|
| Pages (from-to) | 32622-32627 |
| Number of pages | 6 |
| Journal | RSC Advances |
| Volume | 4 |
| Issue number | 62 |
| DOIs | |
| State | Published - 2014 |
| Externally published | Yes |