TY - JOUR
T1 - Tuning the optical, magnetic, and electrical properties of ReSe2 by nanoscale strain engineering
AU - Yang, Shengxue
AU - Wang, Cong
AU - Sahin, Hasan
AU - Chen, Hui
AU - Li, Yan
AU - Li, Shu Shen
AU - Suslu, Aslihan
AU - Peeters, Francois M.
AU - Liu, Qian
AU - Li, Jingbo
AU - Tongay, Sefaattin
N1 - Publisher Copyright:
© 2015 American Chemical Society.
PY - 2015/3/11
Y1 - 2015/3/11
N2 - Creating materials with ultimate control over their physical properties is vital for a wide range of applications. From a traditional materials design perspective, this task often requires precise control over the atomic composition and structure. However, owing to their mechanical properties, low-dimensional layered materials can actually withstand a significant amount of strain and thus sustain elastic deformations before fracture. This, in return, presents a unique technique for tuning their physical properties by "strain engineering". Here, we find that local strain induced on ReSe2, a new member of the transition metal dichalcogenides family, greatly changes its magnetic, optical, and electrical properties. Local strain induced by generation of wrinkle (1) modulates the optical gap as evidenced by red-shifted photoluminescence peak, (2) enhances light emission, (3) induces magnetism, and (4) modulates the electrical properties. The results not only allow us to create materials with vastly different properties at the nanoscale, but also enable a wide range of applications based on 2D materials, including strain sensors, stretchable electrodes, flexible field-effect transistors, artificial-muscle actuators, solar cells, and other spintronic, electromechanical, piezoelectric, photonic devices.
AB - Creating materials with ultimate control over their physical properties is vital for a wide range of applications. From a traditional materials design perspective, this task often requires precise control over the atomic composition and structure. However, owing to their mechanical properties, low-dimensional layered materials can actually withstand a significant amount of strain and thus sustain elastic deformations before fracture. This, in return, presents a unique technique for tuning their physical properties by "strain engineering". Here, we find that local strain induced on ReSe2, a new member of the transition metal dichalcogenides family, greatly changes its magnetic, optical, and electrical properties. Local strain induced by generation of wrinkle (1) modulates the optical gap as evidenced by red-shifted photoluminescence peak, (2) enhances light emission, (3) induces magnetism, and (4) modulates the electrical properties. The results not only allow us to create materials with vastly different properties at the nanoscale, but also enable a wide range of applications based on 2D materials, including strain sensors, stretchable electrodes, flexible field-effect transistors, artificial-muscle actuators, solar cells, and other spintronic, electromechanical, piezoelectric, photonic devices.
KW - 2D materials
KW - Transition metal dichalcogenides
KW - excitonics
KW - magnetism
KW - photoluminescence
KW - strain engineering
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U2 - 10.1021/nl504276u
DO - 10.1021/nl504276u
M3 - Article
AN - SCOPUS:85102517441
SN - 1530-6984
VL - 15
SP - 1660
EP - 1666
JO - Nano Letters
JF - Nano Letters
IS - 3
ER -