Photoelectric characteristics of the p–n junction between ZnO nanorods and polyaniline nanowires and their application as a UV photodetector

Wang, Huan; Yi, Guobin; Zu, Xihong; Qin, Pei; Tan, Miao; Luo, Hongsheng

doi:10.1016/j.matlet.2015.09.128

Cited by 56 publications

(16 citation statements)

References 21 publications

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“…[38,39] Inspired by the photoelectrical features of polyaniline, the photocurrent responsive behavior of SOC film was also investigated under visible light illumination. [38,39] Inspired by the photoelectrical features of polyaniline, the photocurrent responsive behavior of SOC film was also investigated under visible light illumination.…”

Section: Photocurrent Responsivenessmentioning

confidence: 99%

“…The photocurrent performance is an important feature for polyaniline, which is generated by the excitation of its conductive main chain leading to charge separation and charge transfer. [38,39] Inspired by the photoelectrical features of polyaniline, the photocurrent responsive behavior of SOC film was also investigated under visible light illumination. Here, the photocurrent responsive behavior of SOC film was recorded using an electrochemical workstation in 1.0 M Na 2 S 2 O 8 solution under 100 mW/cm 2 irradiation.…”

Section: Photocurrent Responsivenessmentioning

confidence: 99%

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Flexible and Robust Electro‐Optically Responsive Films Based on Novel Silica/Oligoaniline/Carbon Dots Composite

Zhou

Berda

et al. 2019

ChemElectroChem

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We report a new electro-optical composite film based on silica, oligoaniline, and carbon dots prepared by a hydrolytic crosslinking reaction under electrokinetic potentials. The electroactive oligoaniline and fluorescent carbon dots are covalently linked through hydrolysis of siloxane, resulting in multifunctional composite films. The resultant crosslinked architecture endows the films with high flexibility and robust durability. These films display good electrochromic behavior with an obvious color contrast, quick switching rate, and acceptable cycling stability. Moreover, these films reveal an interesting electrofluorochromic performance in continuous potential ranges, attributed to the interaction between oligoaniline and carbon dots, and the change in structure that occurs with changing redox potentials. Further, an enhanced photocurrent response is observed in these materials, as a result of the organic-inorganic interfaces.

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Section: Photocurrent Responsivenessmentioning

confidence: 99%

Section: Photocurrent Responsivenessmentioning

confidence: 99%

Flexible and Robust Electro‐Optically Responsive Films Based on Novel Silica/Oligoaniline/Carbon Dots Composite

Zhou

Berda

et al. 2019

ChemElectroChem

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“…The stable phase at room temperature is the well-known hexagonal wurtzite structure of ZnO [13]. ZnO is also used in various other fields of applications such as optics, energy, chemistry, environmental applications [14,15]. Furthermore, doping with metal or non-metal ions is one of the most effective approaches to promote the photocatalytic performance of ZnO.…”

Section: Introductionmentioning

confidence: 99%

Influence of magnesium doping on microstructure, optical and photocatalytic activity of zinc oxide thin films synthesis by sol–gel route

et al. 2021

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The article deals with the effect of Mg dopant on the properties and the photocatalytic of ZnO films synthesized by the sol-gel technique onto glass substrates. It is found that Mg dopant has a strong influence on the microstructure and functional properties.The EDX analysis revealed that Mg had been incorporated into the ZnO. Structural studies through XRD have shown that the deposited films are of hexagonal structure with a preferential growth along the c-axis and nanometer crystal size. According to AFM analysis; it is found that the roughness of Mg-doped ZnO films increases with the Mg dopant. The film surface depicted wrinkles morphology as observed by ESEM. Optical investigations by spectrophotometry and photoluminescence revealed that as the Mg dopant is increased, the optical band-gap increases. Moreover, near band edge and visible emissions as probed by Photoluminescence can be manipulated by the Mg dopant, as their intensity increases and decreases, respectively. Finally, the photocatalytic activity for degradation of methylene blue is strongly improved all the more as the Mg content is increased.

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“…Therefore, graphene and its composites have been widely employed among temperature, pressure, and gas sensors [19][20][21]. Zinc oxide (ZnO) has a direct wide band gap (3.37 eV) with a large exciton binding energy (60 meV) [22], and demonstrates good performance in gas-sensing [23][24] and photoelectronic [25]. Typically, ZnO is an n-type metal oxide semiconductor [26].…”

Section: Introductionmentioning

confidence: 99%

Na-Doped ZnO and RGO Composite-Based Flexible Acetone Gas Sensor Operated in Room Temperature

et al. 2020

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Real-time health monitoring is important in disease prediction, prevention, and early treatment. In this study, based on Na-doped ZnO/reduced graphene oxide (RGO) heterojunction, an ultrasensitive flexible room temperature gas sensor was developed for lung cancer surveillance diagnosis. The sensing material was synthesized using a simple solution route. X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman spectroscopy were carried out to investigate the structure and chemical properties. The fabricated material has a surface-tovolume ratio, which was important to the sensing property. The gas-sensing performance was measured from 5 ppm to 200 ppm at room temperature (25 ℃). The proposed sensor demonstrated fast response and recovery time, as well as great repeatability and long-term stability. Furthermore, it exhibited mechanical robustness, and can be bent to different angles with almost no resistance change. Moreover, performance investigation at low acetone concentrations (0.2 ppm to 1.0 ppm) revealed its capability of distinguishing acetone gas as low as 0.2 ppm, with good linearity under different acetone concentration. As such, the developed sensor could provide a promising basis for disease monitoring through detecting the concentration of acetone gas exhaled by human.

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Photoelectric characteristics of the p–n junction between ZnO nanorods and polyaniline nanowires and their application as a UV photodetector

Cited by 56 publications

References 21 publications

Flexible and Robust Electro‐Optically Responsive Films Based on Novel Silica/Oligoaniline/Carbon Dots Composite

Flexible and Robust Electro‐Optically Responsive Films Based on Novel Silica/Oligoaniline/Carbon Dots Composite

Influence of magnesium doping on microstructure, optical and photocatalytic activity of zinc oxide thin films synthesis by sol–gel route

Na-Doped ZnO and RGO Composite-Based Flexible Acetone Gas Sensor Operated in Room Temperature

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