Synthesis of crystalline boron nanoribbons and calcium hexaboride nanowires by low pressure chemical vapor deposition

Jash, Panchatapa; Trenary, Michael

doi:10.1088/1742-6596/176/1/012011

Cited by 13 publications

(15 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Raman spectrum identifies the nanosheets to be boron, as shown in Figure d. The main peaks are located at 650, 712, 750, 913, and 1115 cm −1 , respectively, which coincide with previous literatures,[13a],, and verify the formation of α‐tetragonal boron phase.…”

Section: Resultssupporting

confidence: 86%

Ultrathin Single‐Crystalline Boron Nanosheets for Enhanced Electro‐Optical Performances

et al. 2015

View full text Add to dashboard Cite

Large‐scale single‐crystalline ultrathin boron nanosheets (UBNSs, ≈10 nm) are fabricated through an effective vapor–solid process via thermal decomposition of diborane. The UBNSs have obvious advantages over thicker boron nanomaterials in many aspects. Specifically, the UBNSs demonstrate excellent field emission performances with a low turn‐on field, E to, of 3.60 V μm−1 and a good stability. Further, the dependence of (turn‐on field) E to/(threshold field) E thr and effective work function, Φ e, on temperature is investigated and the possible mechanism of temperature‐dependent field emission phenomenon has been discussed. Moreover, electronic transport in a single UBNS reveals it to be an intrinsic p‐type semiconductor behavior with carrier mobility about 1.26 × 10−1 cm2 V−1 s−1, which is the best data in reported works. Interestingly, a multiconductive mechanism coexisting phenomenon has been explored based on the study of temperature‐dependent conductivity behavior of the UBNSs. Besides, the photodetector device fabricated from single‐crystalline UBNS demonstrates good sensitivity, reliable stability, and fast response, obviously superior to other reported boron nanomaterials. Such superior electronic‐optical performances are originated from the high quality of single crystal and large specific surface area of the UBNSs, suggesting the potential applications of the UBNSs in field‐emitters, interconnects, integrated circuits, and optoelectronic devices.

show abstract

Section: Resultssupporting

confidence: 86%

Ultrathin Single‐Crystalline Boron Nanosheets for Enhanced Electro‐Optical Performances

et al. 2015

View full text Add to dashboard Cite

show abstract

“…SEM images show that the nanoribbons are typically twisted and the edges of ribbons are sometimes not straight, but rather a zigzag shape. By applying the same method, crystalline α-tetragonal boron nanoribbons of thickness 16 nm were reported to be synthesized by Jash and Trenary in 2009 [ 139 ].…”

Section: One-dimensional (1d) Boron Nanomaterialsmentioning

confidence: 99%

Recent progress in boron nanomaterials

Kondo

2017

Science and Technology of Advanced Materials

View full text Add to dashboard Cite

Various types of zero, one, and two-dimensional boron nanomaterials such as nanoclusters, nanowires, nanotubes, nanobelts, nanoribbons, nanosheets, and monolayer crystalline sheets named borophene have been experimentally synthesized and identified in the last 20 years. Owing to their low dimensionality, boron nanomaterials have different bonding configurations from those of three-dimensional bulk boron crystals composed of icosahedra or icosahedral fragments. The resulting intriguing physical and chemical properties of boron nanomaterials are fascinating from the viewpoint of material science. Moreover, the wide variety of boron nanomaterials themselves could be the building blocks for combining with other existing nanomaterials, molecules, atoms, and/or ions to design and create materials with new functionalities and properties. Here, the progress of the boron nanomaterials is reviewed and perspectives and future directions are described.

show abstract

“…In particular, epitaxy can grow graphene on a metal surface with a large area and high quality, − implying that metal-substrate-supported graphene is easier to prepare than a freestanding sheet. In addition to graphene, a boron nitride (BN) monolayer fabricated on a metal surface has also been reported. , As the neighbor of carbon in the periodic table, boron’s nanostructures, such as boron fullerenes, − nanotubes, − nanowires, nanosheets, , and nanoribbons, − also draw the attention of scientific researchers. Considering that the support of a metal substrate benefits the preparation of two-dimensional materials, such as graphene and an h -BN monolayer, and that boron can form hexagonal layered structures in AlB 2 -type materials similar to graphene in geometry, we anticipated that it might be possible to fabricate a single-layer boron sheet (BS) on various metal surfaces.…”

Section: Introductionmentioning

confidence: 99%

Boron Sheet Adsorbed on Metal Surfaces: Structures and Electronic Properties

Zhang

Yan

et al. 2012

J. Phys. Chem. C

View full text Add to dashboard Cite

Using first-principles calculations based on density functional theory, we studied the possible geometric configurations and electronic structures of three types of monolayer boron sheets (BSs) on different metal (Mg, Al, Ti, Au, and Ag) surfaces. We find that, when adsorbed on metal surfaces, hexagonal BS (h-BS) is more energy-favorable than triangular BS or mixed hexagonal-triangular BS, and the atop-site adsorption configuration is the most favored. For all h-BS/metal configurations, electrons are observed to transfer from metal to BS, due to the intrinsic electron deficiency of h-BS. Electronic structure analyses show that the substrates could be classified into two types according to the interactions between boron and metal: (1) h-BS on Mg(0001), Al(111), or Ti(0001) shows a relatively larger charge transfer and stronger BS−metal interactions, and the σ (in-plane) bands have the same profile as freestanding h-BS, except for a Fermi level shift caused by the charge transfer. (2) h-BS on Au(111) or Ag(111) surfaces has inplane bands split into several subbands. A model of coronene on h-BS/Mg(0001) is also investigated, which shows that it is possible to decouple the molecular electronic structure from the metal surface by a buffer of a single sheet of boron.

show abstract

Synthesis of crystalline boron nanoribbons and calcium hexaboride nanowires by low pressure chemical vapor deposition

Cited by 13 publications

References 33 publications

Ultrathin Single‐Crystalline Boron Nanosheets for Enhanced Electro‐Optical Performances

Ultrathin Single‐Crystalline Boron Nanosheets for Enhanced Electro‐Optical Performances

Recent progress in boron nanomaterials

Boron Sheet Adsorbed on Metal Surfaces: Structures and Electronic Properties

Contact Info

Product

Resources

About