Long-range interactions of bismuth growth on monolayer epitaxial graphene at room temperature

Chen, H.-H.; Su, Shu Hsuan; Chang, Shinn‐Liang; Cheng, Bei; Chong, Cheong Wei; Huang, Jen-Fa; Lin, Mingyao

doi:10.1016/j.carbon.2015.05.052

Cited by 25 publications

(30 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hexagonal symmetry leads to the 4-adatom-dominated nanoclusters. However, the relatively few vacancies in the large-scale hexagonal array (arrows in [50,51] show features similar to the DFT calculation, as shown in Fig. 5(b).…”

Section: Resultssupporting

confidence: 63%

“…The adatom height of 2.32Å is consistent with that of STM measurements. [50] The distribution of bismuth atoms can be clearly explored by calculating the ground- of Bi-adsorbed monolayer graphene is shown in Fig. 3(a Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The aggregated adatom arrangements are associated with the large-scale hexagonal symmetry, Bi coverage, and relatively few vacancies. The optimized geometric structures were validated by the STM measurements [50,51]. Hopefully, these rich fundamental features in bismuth structures can promote potential applications for use in electronic devices and energy materials.…”

mentioning

confidence: 90%

See 2 more Smart Citations

Substrate-induced structures of bismuth adsorption on graphene: a first principles study

Lin

Chang

Chen

et al. 2016

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

The geometric and electronic properties of Bi-adsorbed monolayer graphene, enriched by the strong effect of a substrate, are investigated by first-principles calculations. The six-layered substrate, corrugated buffer layer, and slightly deformed monolayer graphene are all simulated. Adatom arrangements are thoroughly studied by analyzing the ground-state energies, bismuth adsorption energies, and Bi-Bi interaction energies of different adatom heights, inter-adatom distance, adsorption sites, and hexagonal positions. A hexagonal array of Bi atoms is dominated by the interactions between the buffer layer and the monolayer graphene. An increase in temperature can overcome a ∼50 meV energy barrier and induce triangular and rectangular nanoclusters. The most stable and metastable structures agree with the scanning tunneling microscopy measurements. The density of states exhibits a finite value at the Fermi level, a dip at ∼-0.2 eV, and a peak at ∼-0.6 eV, as observed in the experimental measurements of the tunneling conductance.

show abstract

Section: Resultssupporting

confidence: 63%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 90%

See 1 more Smart Citation

Substrate-induced structures of bismuth adsorption on graphene: a first principles study

Lin

Chang

Chen

et al. 2016

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

“…As stated above , the interatomic distance between Bi atoms changes from 1.8 nm for the 1D linear chain to 1.6 nm for the 2D triangular island structure, equivalently from four times into times the lattice spacing of the Bi nanoribbon, indicating a coverage-dependent 1D → 2D growth mode transition in this system. According to the DFT calculations, combined with previous literature 26 27 28 , Bi adatom is preferentially adsorbed at the bridge (B) site, as shown in Fig. S1 and Table S1 .…”

Section: Resultsmentioning

confidence: 64%

“…The buffer layer and monolayer graphene, including 4 bilayer silicon carbide films as the substrate, were constructed. Detailed calculations can be found in our previous work 28 .…”

Section: Methodsmentioning

confidence: 99%

Tailoring low-dimensional structures of bismuth on monolayer epitaxial graphene

Chen

Chang

et al. 2015

Sci Rep

Self Cite

View full text Add to dashboard Cite

To improve graphene-based multifunctional devices at nanoscale, a stepwise and controllable fabrication procedure must be elucidated. Here, a series of structural transition of bismuth (Bi) adatoms, adsorbed on monolayer epitaxial graphene (MEG), is explored at room temperature. Bi adatoms undergo a structural transition from one-dimensional (1D) linear structures to two-dimensional (2D) triangular islands and such 2D growth mode is affected by the corrugated substrate. Upon Bi deposition, a little charge transfer occurs and a characteristic peak can be observed in the tunneling spectrum, reflecting the distinctive electronic structure of the Bi adatoms. When annealed to ~500 K, 2D triangular Bi islands aggregate into Bi nanoclusters (NCs) of uniform size. A well-controlled fabrication method is thus demonstrated. The approaches adopted herein provide perspectives for fabricating and characterizing periodic networks on MEG and related systems, which are useful in realizing graphene-based electronic, energy, sensor and spintronic devices.

show abstract

Interaction and Manipulation of Bi Adatoms on Monolayer Epitaxial Graphene

Lin

Huang

et al. 2019

Handbook of Graphene

View full text Add to dashboard Cite

Long-range interactions of bismuth growth on monolayer epitaxial graphene at room temperature

Cited by 25 publications

References 43 publications

Substrate-induced structures of bismuth adsorption on graphene: a first principles study

Substrate-induced structures of bismuth adsorption on graphene: a first principles study

Tailoring low-dimensional structures of bismuth on monolayer epitaxial graphene

Interaction and Manipulation of Bi Adatoms on Monolayer Epitaxial Graphene

Contact Info

Product

Resources

About