期刊
LANGMUIR
卷 30, 期 13, 页码 3913-3921出版社
AMER CHEMICAL SOC
DOI: 10.1021/la500143w
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资金
- Public Authority of Applied Education and Training (PAAET)
- Government of the State of Kuwait
- University of Hail
- EPSRC [EP/F052901/1]
- Engineering and Physical Sciences Research Council [EP/F052901/1, GR/S72320/01] Funding Source: researchfish
- EPSRC [EP/F052901/1] Funding Source: UKRI
The fabrication of highly functional materials for practical devices requires a deep understanding of the association between morphological and structural properties and applications. A controlled hydrothermal method to produce single crystal ZnO hexagonal nanodisks, nanorings, and nanoroses using a mixed solution of zinc sulfate (ZnSO4) and hexamethylenetetramine (HMTA) without the need of catalysts, substrates, or templates at low temperature (75 degrees C) is introduced. Metal-semiconductor-metal (MSM) ultraviolet (UV) detectors were fabricated based on individual and multiple single-crystal zinc oxide (ZnO) hexagonal nanodisks. High quality single crystal individual nanodisk devices were fabricated with inkjet-printed silver electrodes. The detectors fabricated show record photoresponsivity (3300 A/W) and external quantum efficiency (1.2 X 10(4)), which we attribute to the absence of grain boundaries in the single crystal ZnO nanodisk and the polarity of its exposed surface.
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