ZnS Nanostructure Arrays: A Developing Material Star

Fang, Xiaosheng; Wu, Limin; Hu, Linfeng

doi:10.1002/adma.201003624

Cited by 311 publications

(166 citation statements)

References 128 publications

Supporting

Mentioning

159

Contrasting

Unclassified

Order By: Relevance

“…The significant performance enhancement of our SiC nanoneedles could be attributed to both the sharp-tip morphology and N-doping. The sharp tips facilitate the local field effect enhancement for field-induced electron emission 26,34 and ensure the absence of catalyst particles on the tips. 33 Meanwhile, N-doping improves the conductivity of the emitters, resulting in superior FE performance.…”

Section: N-dopedmentioning

confidence: 99%

Highly flexible and robust N-doped SiC nanoneedle field emitters

et al. 2015

View full text Add to dashboard Cite

Flexible field emission (FE) emitters, whose unique advantages are lightweight and conformable, promise to enable a wide range of technologies, such as roll-up flexible FE displays, e-papers and flexible light-emitting diodes. In this work, we demonstrate for the first time highly flexible SiC field emitters with low turn-on fields and excellent emission stabilities. n-Type SiC nanoneedles with ultra-sharp tips and tailored N-doping levels were synthesized via a catalyst-assisted pyrolysis process on carbon fabrics by controlling the gas mixture and cooling rate. The turn-on field, threshold field and current emission fluctuation of SiC nanoneedle emitters with an N-doping level of 7.58 at.% are 1.11 V μm − 1 , 1.55 V μm − 1 and 8.1%, respectively, suggesting the best overall performance for such flexible field emitters. Furthermore, characterization of the FE properties under repeated bending cycles and different bending states reveal that the SiC field emitters are mechanically and electrically robust with unprecedentedly high flexibility and stabilities. These findings underscore the importance of concurrent morphology and composition controls in nanomaterial synthesis and establish SiC nanoneedles as the most promising candidate for flexible FE applications. NPG Asia Materials (2015) 7, e157; doi:10.1038/am.2014.126; published online 23 January 2015 INTRODUCTIONFlexible electronic devices have attracted extensive attention in recent decades because of their numerous promising applications, such as flexible energy-storage devices, wearable energy-harvesting systems and stretchable electronics. 1-4 Among the emerging technologies, there is considerable interest in flexible field emission (FE) emitters due to their unique lightweight, conformable and flexible nature, which give them the significant advantage of being utilized in roll-up flexible FE displays, 3 e-papers 5 and high-performance X-ray tubes. 6 To enable such next-generation flexible devices, flexible cathodes must be used as the fundamental starting component to replace conventional emitters grown on rigid substrates. These flexible emitters should maintain their original or even better FE properties as well as excellent electrical and mechanical performances after bending, compressing, twisting and stretching. 7,8 To date, a variety of cathodes have been developed based on flexible substrates such as polymers, 9 graphene 7 and carbon fabrics. 10 However, material-and fabrication-related obstacles to the realization of high-performance flexible emitters remain.Silicon carbide (SiC) is an excellent material candidate for constructing advanced FE emitters. SiC is a third-generation wide band-gap semiconductor with excellent physical properties such as high strength and stiffness, high-temperature stability, corrosion resistance and high thermal conductivity. [11][12][13] To date, several studies have explored the FE properties of nanostructured SiC emitters

show abstract

Section: N-dopedmentioning

confidence: 99%

Highly flexible and robust N-doped SiC nanoneedle field emitters

et al. 2015

View full text Add to dashboard Cite

show abstract

“…In particular, one-dimensional semiconductor nanostructures, such as nanobelt, nanowire and nanotube, due to their unique physical and chemical properties caused by their nanometer size effect, have aroused great interest due to their unique characteristics [3] [4] [5] [6] [7]. Therefore, metal-oxide semiconductor nanostructured materials, such as SnO 2 , In 2 O 3 , WO 3 and ZnO, have been widely manufactured as sensors for de-tecting air composition and organic or poisonous gases due to low cost, easy accessibility, high performance, and reliable stability [8] [9] [10] [11].…”

Section: Introductionmentioning

confidence: 99%

Influence of Mn Doping on the Sensing Properties of SnO<sub>2</sub> Nanobelt to Ethanol

Huang¹,

Liu²,

Wu³

et al. 2017

AJAC

View full text Add to dashboard Cite

Mn doped SnO 2 nanobelts (Mn:SnO 2 NBs) and pure SnO 2 nanobelts (SnO 2 NBs) were synthesized by thermal evaporation technique at 1355˚C with Ar carrier gas (25 sccm, 150 Torr). The SEM, EDS, XRD, TEM, HRTEM, SAED, XPS, UV-Vis techniques were used to characterize the attained samples. The band gap of Mn doped SnO 2 NBs by UV-Vis was measured to be 3.43 eV at room temperature, lower than that of the pure counterpart with ~3.66 eV. Mn:SnO 2 NB and pure SnO 2 NB sensors were developed. It is found that Mn:SnO 2 NB device exhibits a higher sensitivity with 62.12% to 100 ppm of ethanol at 210˚C, which is the highest sensitivity among the three tested VOC gases (ethanol, ethanediol, and acetone). The theoretical detection limit for ethanol of the sensor is 1.1 ppm. The higher response is related to the selective catalysis of the doped Mn ions.

show abstract

“…PDs on rigid substrates have great applications in daily life like digital cameras, fire monitoring, and biological analysis, as well as military applications 16, 17, 18, 19, 20. Compared to PDs based on rigid substrates, flexible and soft devices can be better shaped and adapted to different surfaces which enables new functionalities such as being more implantable, allows for fewer aberrations, and better portability that cannot be fulfilled by their rigid counterparts 21, 22, 23, 24, 25, 26. For instance, flexible PDs could be attached to the human body so that one can easily detect ultraviolet radiation.…”

Section: Introductionmentioning

confidence: 99%

Flexible Photodetectors Based on 1D Inorganic Nanostructures

2015

View full text Add to dashboard Cite

Flexible photodetectors with excellent flexibility, high mechanical stability and good detectivity, have attracted great research interest in recent years. 1D inorganic nanostructures provide a number of opportunities and capabilities for use in flexible photodetectors as they have unique geometry, good transparency, outstanding mechanical flexibility, and excellent electronic/optoelectronic properties. This article offers a comprehensive review of several types of flexible photodetectors based on 1D nanostructures from the past ten years, including flexible ultraviolet, visible, and infrared photodetectors. High‐performance organic‐inorganic hybrid photodetectors, as well as devices with 1D nanowire (NW) arrays, are also reviewed. Finally, new concepts of flexible photodetectors including piezophototronic, stretchable and self‐powered photodetectors are examined to showcase the future research in this exciting field.

show abstract

ZnS Nanostructure Arrays: A Developing Material Star

Cited by 311 publications

References 128 publications

Highly flexible and robust N-doped SiC nanoneedle field emitters

Highly flexible and robust N-doped SiC nanoneedle field emitters

Influence of Mn Doping on the Sensing Properties of SnO<sub>2</sub> Nanobelt to Ethanol

Flexible Photodetectors Based on 1D Inorganic Nanostructures

Contact Info

Product

Resources

About

ZnS Nanostructure Arrays: A Developing Material Star

Cited by 311 publications

References 128 publications

Highly flexible and robust N-doped SiC nanoneedle field emitters

Highly flexible and robust N-doped SiC nanoneedle field emitters

Influence of Mn Doping on the Sensing Properties of SnO&lt;sub&gt;2&lt;/sub&gt; Nanobelt to Ethanol

Flexible Photodetectors Based on 1D Inorganic Nanostructures

Contact Info

Product

Resources

About

Influence of Mn Doping on the Sensing Properties of SnO<sub>2</sub> Nanobelt to Ethanol