A Review of Recent Applications of Ion Beam Techniques on Nanomaterial Surface Modification: Design of Nanostructures and Energy Harvesting

Li, Wenqing; Zhan, Xueying; Song, Xianyin; Si, Shuyao; Chen, Rui; Liu, Jing; Wang, Zhenxing; He, Jun; Xiao, Xin

doi:10.1002/smll.201901820

Cited by 77 publications

(46 citation statements)

References 185 publications

(227 reference statements)

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“…Ion beam techniques can be divided into ion implantation, ion irradiation, and focused ion beam. [ 91 ] The first two methods are commonly applied in the synthesis of MNPs, where ion implantation can transform metal ions into embedded MNPs and ion irradiation can change the morphology of MNPs.…”

Section: Synthesismentioning

confidence: 99%

Recent Advances and Challenges in Ultrafast Photonics Enabled by Metal Nanomaterials

Wang

Liu

Chao

et al. 2022

Advanced Optical Materials

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absorbers (SAs) are widely used to obtain ultrafast lasers. Mode-locking indicates a fixed phase between longitudinal modes in spectral domain, while Q-switching refers to the giant pulse formation due to the tunable Q factor of the laser cavity. Saturable absorption represents the optical modulation that absorption coefficient of SAs decreases with the increase of incident optical intensity, where SAs are often categorized into artificial and real SAs. [7][8][9] Artificial SAs mainly consist of nonlinear polarization evolution, [10,11] nonlinear optical loop mirrors, [12][13][14] and nonlinear amplification loop mirrors, [15,16] which fulfill the function of saturable absorption by means of nonlinear effects. By contrast, real SAs are characterized by the inherent nonlinear absorption property of the materials. Semiconductor saturable absorber mirror is a typical real SA and widely used in diverse lasers. However, several drawbacks such as complex fabrication and narrow operating bandwidth restrict its applications. [17][18][19][20][21] Under such circumstances, nanomaterials emerge as SAs of distinction where 2D nanomaterials have been widely investigated because of the unique optical properties induced by the energy band structures. [22][23][24][25][26][27][28] Graphene possesses zero bandgap and ultrafast carrier dynamics properties, contributing to a broad operating bandwidth and fast response time. [29][30][31][32][33][34][35][36] Nevertheless, the modulation depth of ≈2.3% per layer limits Nanomaterials with outstanding optical properties are widely used in ultrafast photonics. Especially, metal nanomaterials have attracted increasing attention in recent years owing to the surface plasmon resonance that further enhances their nonlinear optical response, making them suitable for generating ultrafast pulses in a wide range of wavebands. Herein, the fabrication and integration processes of typical metal nanomaterials such as gold, silver, and copper, as well as their applications in ultrafast lasers are reviewed. The synthesis methods of metal nanomaterials, which can be divided into dry and wet methods, are first introduced with their characteristics and advantages summarized. Moreover, the integration approaches that are used to incorporate metal nanomaterials into laser cavities are discussed, where sandwich structure based on polymer film and deposition method, as well as evanescent-wave structure based on D-shaped and tapered fiber are demonstrated. Besides, the state of the art of typical ultrafast lasers enabled by metal nanoparticles is systematically reviewed. Finally, current challenges and perspectives on the development of ultrafast photonics enabled by metal nanomaterials are proposed.

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Section: Synthesismentioning

confidence: 99%

Recent Advances and Challenges in Ultrafast Photonics Enabled by Metal Nanomaterials

Wang

Liu

Chao

et al. 2022

Advanced Optical Materials

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“…[19,20] Ion implantation has been demonstrated as a well-developed technology to synthesize embedded NPs in dielectrics. [21][22][23][24][25] By appropriately selecting the implantation and postannealing parameters, the size, shape, and distribution of NPs can be effectively manipulated, which shows the significant potential for applications in materials design and development of integrated photonic devices.…”

Section: Introductionmentioning

confidence: 99%

Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass

et al. 2022

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The Faraday rotation originates from the mechanism by which the time‐reversal symmetry in the material is broken by the external magnetic field. It is the basis for the development of some magneto‐optical devices, such as optical isolators. In integrated optics and telecommunications, nonreciprocal photonic devices with high transmittance and strong Faraday rotation are desired for low‐cost, compact optical systems. Localized surface plasmon resonance (LSPR) from the metallic nanoparticles in dielectrics allows the light localization in subwavelength scales, boosting the interaction between nanoparticles and materials, which results in a number of plasmon‐enhanced effects. Herein, the strong Faraday rotation in BK7 glass by embedded metallic nanoparticles through LSPR is reported. It is elucidated that the mechanism of Faraday rotation is the near‐field enhancement of spin–photon coupling effect in the presence of an external magnetic field. The Verdet constant of the thin‐layer BK7 glass with embedded Au nanoparticles is determined as high as 5059.7 rad T−1 m−1 at 532 nm, exhibiting excellent magneto‐optical features. This work opens a new avenue to develop the subwavelength magneto‐optical devices with embedded metallic nanoparticles.

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“…Ion implantation as a novel technique for doping of TiO 2 nanostructures has been introduced by Li et al . 29 . Moreover, Song et al .…”

Section: Introductionmentioning

confidence: 99%

Evolution of large area TiS2-TiO2 heterostructures and S-doped TiO2 nano-sheets on titanium foils

Etghani

Ansari

Mohajerzadeh

2019

Sci Rep

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We report a novel and facile method to synthesize sulfur-doped titanium oxide sheets and realize TiS2-TiO2 heterostructures by means of a sequential sulfurization and oxidation step in a dual-zone chemical vapor deposition furnace. The inclusion of chlorine and argon gases during the growth of such titanium-based compounds plays a critical role in the formation of desired geometries and crystalline structures. These heterostructures possess nano-whisker and nanosheet configurations, controlled by adjusting the growth parameters such as temperature, carrier gas and the sequencing between different steps of the growth. The evolution of these complex heterostructures has been investigated using Raman spectroscopy and EDS characterization. The presence of chlorine gas during the growth results in local TiS2 formation as well as faceted growth of TiO2 nanosheets through anatase to rutile phase change prohibition. The electron microscopy (TEM) images and diffraction pattern (SAED) characterization reveal the crystallinity and layered nature of grown structures, further demonstrating the 2D characteristics of S-doped nanosheets. The evolution of TiO2 on TiS2 heterostructures has also has been verified using XPS analysis. These highly featured nanostructures are suitable candidates to enhance the photocatalytic behavior of TiO2 nanostructures.

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A Review of Recent Applications of Ion Beam Techniques on Nanomaterial Surface Modification: Design of Nanostructures and Energy Harvesting

Cited by 77 publications

References 185 publications

Recent Advances and Challenges in Ultrafast Photonics Enabled by Metal Nanomaterials

Recent Advances and Challenges in Ultrafast Photonics Enabled by Metal Nanomaterials

Strong Faraday Rotation Based on Localized Surface Plasmon Enhancement of Embedded Metallic Nanoparticles in Glass

Evolution of large area TiS2-TiO2 heterostructures and S-doped TiO2 nano-sheets on titanium foils

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