3R MoS 2  with Broken Inversion Symmetry: A Promising Ultrathin Nonlinear Optical Device | Zendy

Shi Jia | Zendy; Yu Peng | Zendy; Liu Fucai | Zendy; He Peng | Zendy; Wang Rui | Zendy; Qin Liang | Zendy; Zhou Junbo | Zendy; Li Xin | Zendy; Zhou Jiadong | Zendy; Sui Xinyu | Zendy; Zhang Shuai | Zendy; Zhang Yanfeng | Zendy; Zhang Qing | Zendy; Sum Tze Chien | Zendy; Qiu Xiaohui | Zendy; Liu Zheng | Zendy; Liu Xinfeng | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

3R MoS 2 with Broken Inversion Symmetry: A Promising Ultrathin Nonlinear Optical Device

Author(s) -

Shi Jia,

Yu Peng,

Liu Fucai,

He Peng,

Wang Rui,

Qin Liang,

Zhou Junbo,

Li Xin,

Zhou Jiadong,

Sui Xinyu,

Zhang Shuai,

Zhang Yanfeng,

Zhang Qing,

Sum Tze Chien,

Qiu Xiaohui,

Liu Zheng,

Liu Xinfeng

Publication year - 2017

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201701486

Subject(s) - point reflection , materials science , monolayer , second harmonic generation , stacking , nonlinear system , wavelength , optoelectronics , polarization (electrochemistry) , condensed matter physics , nonlinear optical , lattice (music) , spectral line , nonlinear optics , optics , molecular physics , nanotechnology , physics , quantum mechanics , laser , chemistry , nuclear magnetic resonance , acoustics

Nonlinear 2D layered crystals provide ideal platforms for applications and fundamental studies in ultrathin nonlinear optical (NLO) devices. However, the NLO frequency conversion efficiency constrained by lattice symmetry is still limited by layer numbers of 2D crystals. In this work, 3R MoS 2 with broken inversion symmetry structure are grown and proved to be excellent NLO 2D crystals from monolayer (0.65 nm) toward bulk‐like (300 nm) dimension. Thickness and wavelength‐dependent second harmonic generation spectra offer the selection rules of appropriate working conditions. A model comprising of bulk nonlinear contribution and interface interaction is proposed to interpret the observed nonlinear behavior. Polarization enhancement with two petals along staggered stacking direction appears in 3R MoS 2 is first observed and the robust polarization of 3R MoS 2 crystal is caused by the retained broken inversion symmetry. The results provide a new arena for realizing ultrathin NLO devices for 2D layered materials.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research