Journal
SOLID STATE COMMUNICATIONS
Volume 134, Issue 3, Pages 229-231Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2004.09.063
Keywords
semiconductors; thin film; chemical synthesis; field emission
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Well-oriented Cu2O films comprising of octahedral-shaped crystals were grown directly on copper foil via an hydrothermal treatment. The well-oriented films were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Field emission from the film showed good emission properties, and, the electron emission turn-on field (Et.) and threshold field (E-thr) are about 9.6 and 13.4 V/mu m respectively, which is similar to the values reported for CuO nanofiber, although the latter has a much larger size. The corresponding Fowler-Nordheim (F-N) plots showed a linear behavior. The sharp corners of the tips are considered as main electron emitters and account for its good performance. (c) 2004 Elsevier Ltd. All rights reserved.
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