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Frontiers of Optoelectronics

ISSN 2095-2759

ISSN 2095-2767(Online)

CN 10-1029/TN

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Front Optoelec Chin    2011, Vol. 4 Issue (2) : 176-180    https://doi.org/10.1007/s12200-011-0160-y
RESEARCH ARTICLE
High-yield synthesized silver orthophosphate nanowires and their application in photoswitch
Ronghui QUE()
Anhui Key Laboratory of Functional Molecular Solids, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
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Abstract

Large-scale, high-purity and uniform silver orthophosphate (Ag3PO4) nanowires had been synthesized by a facile hydrothermal method without employing any surfactants or templates for the first time. The nanowires were single-crystalline with lengths up to several micrometers. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and high-resolution transmission electron microscopy were used to characterize the morphology and structure of the as-prepared products. The as-prepared Ag3PO4 nanowires exhibited linear current-voltage (I-V) characteristics and excellent photoresponse. As the light was switched on and off, the currents could be reversibly switched between high and low value at the voltage of 0.1 V, which will find wide application in optoelectronic nanodevices.
Keywords Ag3PO4 nanowires      hydrothermal reaction      photoswitch     
Corresponding Author(s): QUE Ronghui,Email:qrhui123@mail.ahnu.edu.cn   
Issue Date: 05 June 2011
 Cite this article:   
Ronghui QUE. High-yield synthesized silver orthophosphate nanowires and their application in photoswitch[J]. Front Optoelec Chin, 2011, 4(2): 176-180.
 URL:  
https://academic.hep.com.cn/foe/EN/10.1007/s12200-011-0160-y
https://academic.hep.com.cn/foe/EN/Y2011/V4/I2/176
Fig.1  XRD pattern of as-synthesized products (all diffractions peaks can be indexed as cubic AgPO)
Fig.1  XRD pattern of as-synthesized products (all diffractions peaks can be indexed as cubic AgPO)
Fig.2  SEM images revealing wires several micrometers in length and ~100 nm in diameter. (a) Low magnification; (b) high magnification and EDX spectrum (inset indicates nanowires are composed of Ag, P, and O elements)
Fig.2  SEM images revealing wires several micrometers in length and ~100 nm in diameter. (a) Low magnification; (b) high magnification and EDX spectrum (inset indicates nanowires are composed of Ag, P, and O elements)
Fig.3  TEM image of AgPO nanowires with diameter of 100 nm (HRTEM image of AgPO (low inset) shows clear crystal lattice, which can be indexed as (111) crystal planes; SAED pattern (upper inset) suggests single crystallinity of AgPO nanowire)
Fig.3  TEM image of AgPO nanowires with diameter of 100 nm (HRTEM image of AgPO (low inset) shows clear crystal lattice, which can be indexed as (111) crystal planes; SAED pattern (upper inset) suggests single crystallinity of AgPO nanowire)
Fig.4  SEM images of AgPO samples prepared after hydrothermal reaction showing morphological evolution of AgPO nanowires. (a) 2 h; (b) 5 h
Fig.4  SEM images of AgPO samples prepared after hydrothermal reaction showing morphological evolution of AgPO nanowires. (a) 2 h; (b) 5 h
Fig.5  Photoswitch of AgPO nanowires. (a) - curves of a bundle of AgPO nanowires measured in dark (curve I) and under illumination by using an incandescence lamp (12 V, 10 W) (curve II), and image of a bundle of AgPO nanowires bridging over ITO electrodes from optical microscope (inset); (b) photoconductive characteristics of device during light switching on/off (voltage of 0.1 V was applied across Au-Au electrodes and current was recorded during light alternatively on and off at 10 s intervals)
Fig.5  Photoswitch of AgPO nanowires. (a) - curves of a bundle of AgPO nanowires measured in dark (curve I) and under illumination by using an incandescence lamp (12 V, 10 W) (curve II), and image of a bundle of AgPO nanowires bridging over ITO electrodes from optical microscope (inset); (b) photoconductive characteristics of device during light switching on/off (voltage of 0.1 V was applied across Au-Au electrodes and current was recorded during light alternatively on and off at 10 s intervals)
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