Tin Oxide Nanoribbons with Vacancy Structures in Luminescence-Sensitive Oxygen Sensing

Chen, H. T.; Xiong, Shi‐Jie; Wu, Xuepeng; Zhu, Jun; Jin, Shangtai; Chu, Paul K.

doi:10.1021/nl900075f

Cited by 89 publications

(39 citation statements)

References 44 publications

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“…2͑a͒. The PC spectrum shows two peaks centered at ϳ430 and ϳ690 nm which can be directly related to the fundamental energy gap of the samples and to the effects of oxygen vacancies, 19 respectively. Unfortunately, we are not able to distinguish the bulk and surface vacancies within our experimental setup, but as reported in the literature both kinds lead to similar results.…”

Section: Resultsmentioning

confidence: 98%

Semiconducting Sn3O4 nanobelts: Growth and electronic structure

Berengue

Simon

Chiquito

et al. 2010

Journal of Applied Physics

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The study of structures based on nonstoichiometric SnO 2−x compounds, besides experimentally observed, is a challenging task taking into account their instabilities. In this paper, we report on single crystal Sn 3 O 4 nanobelts, which were successfully grown by a carbothermal evaporation process of SnO 2 powder in association with the well known vapor-solid mechanism. By combining the structural data and transport properties, the samples were investigated. The results showed a triclinic semiconductor structure with a fundamental gap of 2.9 eV. The semiconductor behavior was confirmed by the electron transport data, which pointed to the variable range hopping process as the main conduction mechanism, thus giving consistent support to the mechanisms underlying the observed semiconducting character.

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Section: Resultsmentioning

confidence: 98%

Semiconducting Sn3O4 nanobelts: Growth and electronic structure

Berengue

Simon

Chiquito

et al. 2010

Journal of Applied Physics

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“…Nanostructures, in particular, are of great interest for gas sensing applications owing to their high surface/volume ratio, therefore providing more sites for oxygen molecules adsorption. In addition to the enhanced surface effect, the presence of different native defects on the surface of nanostructures has been proposed to strongly affect their gas sensing behavior [62,63]. It is possible to grow the nanostructures with controlled crystallinity and stoichiometry which are the crucial parameters to control the gas sensing properties.…”

Section: Hazardous Gas Sensorsmentioning

confidence: 99%

“…The capability of transparent conducting oxide (TCO) material to flow and collect the current and pass the light through makes these material suitable for display devices [3]. Metal oxides have adjustable oxygen vacancies which enable the material to possess unique electronic, optical and chemical properties [4,5]. Due to their special shape, composition, chemical and physical properties metal oxide nanostructures are the focus of current research.…”

Section: Introduction To Metal Oxidesmentioning

confidence: 99%

Metal Oxide Nanostructures: Growth and Applications

Kumar

2016

Advances in Nanomaterials

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This chapter provides a comprehensive review of metal oxide nanostructures, their growth and applications. These metal oxides are important transparent conducting materials that have drawn great attention in the scientific community owing to their high optical transparency (*85-95 %) in the visible region of spectrum along with high electrical conductivity (10 3 -10 4 Ω −1 cm −1 ). The combination of these properties make these materials suitable for many technological applications in solar cells, heat mirrors, transparent conducting electrodes, display devices and light emitting diodes. The metal oxide nanostructures, particularly nanowires and nanotubes, have also drawn considerable research interest as sensor material because of their high surface-to-volume ratio and suitable surface chemistry for verities of sensor applications. This has opened up potential applications of these materials in the area of environment control devices with high sensing response, low detection limit, low power consumption and high compatibility with microelectronic processing for IC's. Thus, 1-D metal oxide nanostructures have proven to be the most promising interface for communicating with the outer world. Different growth techniques and various growth models have been discussed for the growth of nanowires, metal-filled nanotubes, octahedrons and nanoflute structures. The article concludes with a glimpse of some recent work based on metal oxide photodetector especially in deep ultraviolet region (DUV) (<280 nm) which would provide futuristic application in optical switching, single photon detection and communication.

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“…As we all know, changing texture, size and morphology of the materials can impact its physicochemical properties [1][2][3][4][5]. Therefore, the nanoscale assemblies, including nanoparticles [6], nanotubes [7], nanorods [8], nanosheets [9], nanocones [10] and hollow microspheres [11] are widely studied due to their various properties and potential applications [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%