Doping effect of In2O3 on structural and ethanol-sensing characteristics of ZnO nanotubes fabricated by electrospinning

Huang, Baoyu; Zhao, Changhui; Zhang, Mingxiang; Zhang, Zemin; Xie, Erqing; Zhou, Jinyuan; Han, Weihua

doi:10.1016/j.apsusc.2015.05.003

Cited by 59 publications

(29 citation statements)

References 40 publications

(46 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The red shift in the absorption band edge of the heterostructure may be caused by the oxygen vacancies and defects due to the formation of the heterostructure. Similar results can also be observed in the previous studies reported by some researchers . This increment in the absorption band edge toward higher wavelength clearly predicts the application of In 2 O 3 ‐ZnO heterojunction toward visible range.…”

Section: Resultssupporting

confidence: 91%

Synergetic Enhancement in Photosensitivity and Flexibility of Photodetectors Based on Hybrid Nanobelt Network

Shahid

Wang

Yang

et al. 2017

Adv Materials Inter

View full text Add to dashboard Cite

IntroductionRecently, 1D wide band gap inorganic semiconductors with controlled synthesis and tunable properties owing high surface-to-volume ratios have been widely investigated for their dynamic applications in the electronics and optoelectronics devices. [1] Their potential applications are widespread in the fields like infrared sensors, energy harvesting, photovoltaics, piezoelectric nanogenerators, TFT displays, magnetic memories, biomimetic materials, etc. [2][3][4][5][6][7][8] Due to rapid development in the electronics technology, transparent and flexible photodetectors are considered as the ideal building blocks for their wide range of applications, especially in harsh environment and where directly visible light exposure is required. [9] In this High photosensitivity, transparency, flexibility, and facile assembly are the main important features of photodetectors, which extend their use for vast range of applications. In this study, a highly stable transparent flexible ultraviolet-visible (UV-vis) hybrid photodetectors, with enhanced photosensitivity and fast photoresponse speed (on/off switching) based on In 2 O 3 -ZnO hybrid nanobelts, is reported. A highly enhanced photosensitivity of about 4.7 × 10 5 , fast photoresponse, and at the same time extended spectral range (UV to vis) have been achieved in these hybrid flexible photodetectors as compared to their pure counterparts In 2 O 3 and ZnO. Furthermore, these photodetectors have shown excellent photoresponsivity of 18.5 A W −1 with an external quantum efficiency 7.4 × 10 3 % and a high detectivity of 1.7 × 10 12 Jones under the excitation wavelength of 308 nm. A facile, tunable, and cost-effective method has been employed to assemble these photodetectors by using wellaligned electrospun nanobelts. The prepared UV-vis photodetectors have shown a high transparency >90% under visible light (400-700 nm) which demonstrates their applications in fully light exposure required devices. These transparent electrospun nanobelts with high aspect ratios can also be transferred to multiple substrates, which shows their applications in different environment as a freestanding nanobelt network for UV-vis photodetectors.

show abstract

Section: Resultssupporting

confidence: 91%

Synergetic Enhancement in Photosensitivity and Flexibility of Photodetectors Based on Hybrid Nanobelt Network

Shahid

Wang

Yang

et al. 2017

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

“…Therefore, many efforts have been devoted to the synthesis of ZnO nanostructures including quantum nanoparticles [20] nanorods [21], nanofibers [22], nanotubes [23], and three-dimensional (3D), hierarchical nanostructures [24]. However, most of them aimed at an investigation of the effects of morphology and crystal size on the sensing behavior but not on the exploration of their crystal plane-dependent properties.…”

Section: Zno Exposed Crystal Planes and Sensing Behaviormentioning

confidence: 99%

Two-Dimensional Zinc Oxide Nanostructures for Gas Sensor Applications

Leonardi

2017

Chemosensors

153

View full text Add to dashboard Cite

Two-dimensional (2D) nanomaterials, due to their unique physical and chemical properties, are showing great potential in catalysis and electronic/optoelectronic devices. Moreover, thanks to the high surface to volume ratio, 2D materials provide a large specific surface area for the adsorption of molecules, making them efficient in chemical sensing applications. ZnO, owing to its many advantages such as high sensitivity, stability, and low cost, has been one of the most investigated materials for gas sensing. Many ZnO nanostructures have been used to fabricate efficient gas sensors for the detection of various hazardous and toxic gases. This review summarizes most of the research articles focused on the investigation of 2D ZnO structures including nanosheets, nanowalls, nanoflakes, nanoplates, nanodisks, and hierarchically assembled nanostructures as a sensitive material for conductometric gas sensors. The synthesis of the materials and the sensing performances such as sensitivity, selectivity, response, and recovery times as well as the main influencing factors are summarized for each work. Moreover, the effect of mainly exposed crystal facets of the nanostructures on sensitivity towards different gases is also discussed.

show abstract

“…ZnO-based 1D nanostructured materials have been doped by Ce [11,193], Pr [6], Er [194], La [190,195], Pt [190], Cu [190,196], Mn [197], Co [198], Al [199], Pd [176] and In [200] and have been used to detect acetone, acetic acid, ethanol, H 2 S, and CO.…”

Section: Reviewmentioning

confidence: 99%

Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

Muhammad¹,

Motta²,

Shafiei³

2018

Beilstein J. Nanotechnol.

View full text Add to dashboard Cite

Electrospun one-dimensional (1D) nanostructures are rapidly emerging as key enabling components in gas sensing due to their unique electrical, optical, magnetic, thermal, mechanical and chemical properties. 1D nanostructures have found applications in numerous areas, including healthcare, energy storage, biotechnology, environmental monitoring, and defence/security. Their enhanced specific surface area, superior mechanical properties, nanoporosity and improved surface characteristics (in particular, uniformity and stability) have made them important active materials for gas sensing applications. Such highly sensitive and selective elements can be embedded in sensor nodes for internet-of-things applications or in mobile systems for continuous monitoring of air pollutants and greenhouse gases as well as for monitoring the well-being and health in everyday life. Herein, we review recent developments of gas sensors based on electrospun 1D nanostructures in different sensing platforms, including optical, conductometric and acoustic resonators. After explaining the principle of electrospinning, we classify sensors based on the type of materials used as an active sensing layer, including polymers, metal oxide semiconductors, graphene, and their composites or their functionalized forms. The material properties of these electrospun fibers and their sensing performance toward different analytes are explained in detail and correlated to the benefits and limitations for every approach.

show abstract

Doping effect of In2O3 on structural and ethanol-sensing characteristics of ZnO nanotubes fabricated by electrospinning

Cited by 59 publications

References 40 publications

Synergetic Enhancement in Photosensitivity and Flexibility of Photodetectors Based on Hybrid Nanobelt Network

Synergetic Enhancement in Photosensitivity and Flexibility of Photodetectors Based on Hybrid Nanobelt Network

Two-Dimensional Zinc Oxide Nanostructures for Gas Sensor Applications

Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

Contact Info

Product

Resources

About