Pt/ZnO Schottky nano-contact for piezoelectric nanogenerator

• Published in: Physica. E, Low-dimensional systems & nanostructures Vol. 43; no. 1; pp. 173 - 175
• Main Authors: Shao, Zhengzheng, Wen, Liaoyong, Wu, Dongmin, Zhang, Xueao, Chang, Shengli, Qin, Shiqiao
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-11-2010; Elsevier
• Subjects: Applied sciences; Cross-disciplinary physics: materials science; rheology; Electronics; Exact sciences and technology; Materials science; Molecular electronics, nanoelectronics; Nanocrystalline materials; Nanoscale materials and structures: fabrication and characterization; Nanotubes; Physics; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Rectifier effect; Atomic force microscopy; Voltage current curve; Nanogenerators; Piezoelectric materials; Nanorod; Nanostructured materials; Electrical characteristic
• ISSN: 1386-9477; 1873-1759
• DOI: 10.1016/j.physe.2010.07.005

The electrical characteristics of Pt Schottky contact to ZnO nanorod were studied with atomic force microscopy. A Pt tip was placed on the top end of a ZnO nanorod, forming a Pt/ZnO Schottky nano-junction. An ideality factor of 3.1 was derived from the current–voltage characteristics curve of the junction. As an application of the Schottky nano-contact, piezoelectric generation of the ZnO nanorod was carried out with atomic force microscopy. The rectifying effect of Pt/ZnO nano-contact on accumulating and releasing piezoelectric current for the nanogenerator was analyzed.