Dr. Chuanghua Yang Profile

Dr. Chuanghua Yang

at Beijing Univ of Posts and Telecommunications

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 7 March 2014 Paper

The mechanical properties and stabilities of pristine, hydrogenated, and fluorinated silicene under tension

Chuang-hua Yang, Zhong-Yuan Yu, Peng-Fei Lu, Yu-min Liu, Saima Manzoor, Ming Li, Shuai Zhou

Proceedings Volume 8975, 89750K (2014) https://doi.org/10.1117/12.2038401

KEYWORDS: Phonons, Graphene, Chemical species, Silicon, Electrons, Solids, Crystals, Acoustics, Photonics, Optical communications

Read Abstract +

A first principles study has been performed to systematically evaluate the mechanical properties and stabilities of pristine, hydrogenated and fluorinated silicene (H-silicane and F-silicane) under tension. The uniaxial tension along the armchair (AC) and zigzag (ZZ) directions and the equiaxial tensile strain are considered in this work. The calculated results have shown that the deformation, failure behavior and the ideal strength are anisotropic along the three deformed directions. After hydrogenation and fluorination, the ideal strengths in three deformed directions all reduce while the ideal strains increase. Therefore, the hydrogenation and fluorination increase the toughness. The phonon calculations based on the density functional perturbation theory (DFPT) confirm stabilities of the pristine silicene, H- and F-silicane. The Poisson ratios of three materials along the AC and ZZ directions all exhibit monotone decreasing changes with increasing strain, except that the Poisson ratio of pristine silicene in the zigzag direction increases with increasing strain. The tensile strains decrease the buckling height, as expected, but in a complex function. The second- and third-order elastic constants are determined by least-squares polynomial fitting to the first principles calculations. Our results can help to understand the effect of hydrogenation and fluorination of silicene on its mechanical properties and provide some useful data for the experiments.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years