Synthesis, Characterization, Defect Chemistry, and FET Properties of Microwave-Derived Nanoscaled Zinc Oxide
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- 作者：Jrg. J. Schneider ; Rudolf C. Hoffmann ; Jrg Engstler ; Andreas Klyszcz ; Emre Erdem ; Peter Jakes ; Rdiger-A. Eichel ; Luciana Pitta-Bauermann ; Joachim Bill
- 刊名：Chemistry of Materials
- 出版年：2010
- 出版时间：April 13, 2010
- 年：2010
- 卷：22
- 期：7
- 页码：2203-2212
- 全文大小：1023K
- 年卷期：v.22,no.7(April 13, 2010)
- ISSN：1520-5002
文摘
The formation of nanoscale zinc oxide particles with an almost-monomodal size distribution synthesized by microwave heating of solutions of mononuclear zinc oximato or zinc acetylacetonato complexes in various alkoxyethanols is investigated. Transparent stable suspensions that contain these particles can be obtained from the zinc oximato precursor. Based on electron paramagnetic resonance (EPR) studies, a core/shell model with a finite surface shell thickness of 1.000 ± 0.025 nm is proposed for the ZnO nanoparticles. Field-effect transistor (FET) devices with these ZnO particles as the active semiconducting layer exhibited a charge carrier mobility of 0.045 cm2/(V s) and Ion/off current ratios of 460.000, with a threshold voltage of 8.78 V.