Influence of Cu ion implantation on the microstructure and cathodoluminescence of ZnS nanostructures

Shang, Liyan; Zhang, D.; Liu, B.Y.

doi:10.1016/j.physe.2016.03.042

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…Chemical vapor deposition (CVD) involves coating of heated objects in a chamber by passing a precursor gas or gases, and a variety of materials can be deposited with very high purity. ZnS nanostructures were synthesized by Shang et al through a CVD technique followed by bombarding Cu ions at an accelerated voltage of 15 keV . ZnS nanostructures were made of regular hexagonal pallets densely stacked along the (0001) direction, and ion implantation caused damage to the surface of these ZnS nanostructures and the morphology became rough.…”

Section: Chemical Vapor Depositionmentioning

confidence: 99%

Critical Analysis of Phase Evolution, Morphological Control, Growth Mechanism and Photophysical Applications of ZnS Nanostructures (Zero-Dimensional to Three-Dimensional): A Review

Tiwari¹,

Dhoble

2016

Crystal Growth & Design

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ZnS nanostructures are prominent and promising candidates of class II−IV semiconductor materials that can be prepared by sophisticated techniques. Transition of the material from bulk to nanosize brings forth drastic changes in various properties particularly the photophysical properties. In recent years research has been focused on modifying and manipulating the morphologies of ZnS nanostructures for fabricating photocatalysts, photonic devices, biolabeling agent, optical sensors, detectors, and other novel applications. This review article addresses phase evolution (theoretical modeling approach and experimental validation), morphological control, growth mechanisms based on thermodynamic considerations, surface energy driven models, kinematics, template directed growth, etc., and understanding of the photophysical properties of ZnS based on the dimension of nanostructures (zero-dimensional to three-dimensional). A broad overview is presented for various synthesis techniques from the aspect of different morphologies (peculiar morphologies such as nanosaws, nanospines, nanoswords, nanocircles, cauliflower like structures, etc.) and phase control of the nanostructures followed by discussion of the possible growth mechanism. Some of the novel techniques such as photochemical methods, direct templating routes, and nucleation doping strategies have been included. The structural changes occurring with incorporation of various transition metal ions into the ZnS host and the dependence of fascinating photophysical properties on the different reaction conditions and parameters along with recent advancement in their applications have been introduced in the later sections. The parameters have been discussed and analyzed for tuning the various luminescent properties based on the dimension of the ZnS nanoparticles. We tried to summarize the current status of the research, discuss the issues and concerns in the present scenario, and provide suggestions for further exploration in other potential directions.

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Section: Chemical Vapor Depositionmentioning

confidence: 99%

Critical Analysis of Phase Evolution, Morphological Control, Growth Mechanism and Photophysical Applications of ZnS Nanostructures (Zero-Dimensional to Three-Dimensional): A Review

Tiwari¹,

Dhoble

2016

Crystal Growth & Design

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“…Ion irradiation has been used extensively to tune the mechanical [1][2][3], optical [4][5][6], electrical [4,6,7], and chemical [8,9] properties of materials, as well as for nanofabrication [6,8,[10][11][12]. Understanding the response of materials to ion irradiation is especially important for the design of engineering materials, such as radiation-tolerant materials for nuclear reactors [3,[13][14][15], for ion implantation in semiconductors and for nanofabrication.…”

Section: Introductionmentioning

confidence: 99%

Focused-helium-ion-beam blow forming of nanostructures: radiation damage and nanofabrication

et al. 2019

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Targeted irradiation of nanostructures by a finely focused ion beam provides routes to improved control of material modification and understanding of the physics of interactions between ion beams and nanomaterials. Here, we studied radiation damage in crystalline diamond and silicon nanostructures using a focused helium ion beam, with the former exhibiting extremely longrange ion propagation and large plastic deformation in a process visibly analogous to blow forming. We report the dependence of damage morphology on material, geometry, and irradiation conditions (ion dose, ion energy, ion species, and location). We anticipate that our method and findings will not only improve the understanding of radiation damage in isolated nanostructures, but will also support the design of new engineering materials and devices for current and future applications in nanotechnology.

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“…They found that ZnS, Mndoped-ZnS and Cu-doped-ZnS generated blue, yellow and green color, respectively. Recently, in 2016, Shang et al also found that the optical emissions of ZnS nanostructures can be selectively modified through the control of Cu ion dose and subsequent heat treatment [16]. An increase of Cu dopant content will lead to an apparent red-shift of the intrinsic band-gap emission in the UV range and the broadening of defect-related emission in visible range.…”

mentioning

confidence: 99%

PHOTOLUMINESCENCE EMISSION OF Cu DOPED ZnS MICROSTRUCTURES SYNTHESIZED BY THERMAL EVAPORATION

Van¹

2018

MaP

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Cu doped ZnS microstructures were prepared by the thermal evaporation method using ZnS powder and CuCl 2 .2H 2 O powder as precusor materials. The microstructures was characterized by using X-ray diffraction (XRD) analysis. The XRD studies indicated that there are two phases (ZnS and ZnO) at the undoped sample, but most of the samples are only having wurtzite (hexagonal) phase of ZnS after doping. The photoluminescence emission and photoluminescence excitation of ZnS and Cu 2+ doped ZnS microstructures have been studied. The photoluminescence excitation spectra of ZnS microstructures is presented around 374 nm. By doping of Cu 2+ ion, the absorption wavelength is shifted towards the lower wavelength being an evidence for an increasing band gap. The emission spectrum of pure ZnS has a green emission band centred at around 520 nm. By doping Cu 2+ ion, the peak of the green band in the luminescence spectra were transferred to 516 nm and appeared a strong blue peak at 440 nm. The reasons of these will be discussed in this paper.

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Influence of Cu ion implantation on the microstructure and cathodoluminescence of ZnS nanostructures

Cited by 8 publications

References 24 publications

Critical Analysis of Phase Evolution, Morphological Control, Growth Mechanism and Photophysical Applications of ZnS Nanostructures (Zero-Dimensional to Three-Dimensional): A Review

Critical Analysis of Phase Evolution, Morphological Control, Growth Mechanism and Photophysical Applications of ZnS Nanostructures (Zero-Dimensional to Three-Dimensional): A Review

Focused-helium-ion-beam blow forming of nanostructures: radiation damage and nanofabrication

PHOTOLUMINESCENCE EMISSION OF Cu DOPED ZnS MICROSTRUCTURES SYNTHESIZED BY THERMAL EVAPORATION

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