journal article·2024-10-30

Dimension-Dependent Nonlinear Optical Properties of Stanene Nanosheets

Yifan Huang, Jingkun Wang, Bowen Bai, Min Zhao, Xiaojuan Zhen, Lei Zhao, Xinping Zhai, Lin Zhao, Xuesong Leng

ACS Applied Materials & Interfaces· Volume 16· Issue 43
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Abstract

Stanene (Sn)-based materials, with a graphene-like hexagonal structure, are now attracting considerable interest for potential applications in photoelectricity. However, the nonlinear optical properties of stanene remain largely unexplored. In this work, we prepared different sizes of stanene by liquid phase exfoliation and differential centrifugation methods, including two-dimensional (2D) Sn nanosheets (NSs) and zero-dimensional (0D) Sn nanodots (NDs). Z-scan measurements reveal that 2D Sn NSs exhibited high saturable absorption behavior, while the 0D Sn NDs led to reverse saturable absorption. Femtosecond ultrafast transient absorption spectra revealed that the reverse saturable absorption of Sn NDs is derived from a stronger excited state absorption and faster exciton relaxation dynamics. This research expands the potential applications of stanene in laser shielding and other ultrafast photonics technologies.
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Research context

OpenAlex topics: Advanced Fiber Laser Technologies · Nonlinear Optical Materials Studies · Diamond and Carbon-based Materials Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Special Environment Physical Sciences

Harbin Institute of Technology

Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education

Taiyuan University of Technology

School of Electronic and Information Engineering

Lanzhou City University

Research Institute of Microscale Optoelectronics, School of Jia Yang

Zhejiang Shuren University

Funding

People's Government of Shanxi Province · Science and Technology Planning Project of Shenzen Municipality · National Natural Science Foundation of China · Natural Science Foundation of Gansu Province · Key research and development program of high-level scientific and technological talents in Lvliang city · Shenzhen Pengcheng Peacock Project · Research Project of Higher Education in Gansu Province

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