Kavli Affiliate: Long Zhang
| First 5 Authors: Long Zhang, Long Zhang, , ,
| Summary:
The depletion of energy sources, worsening environmental issues, and the
quantum limitations of integrated circuits for information storage in the
post-Moore era, are pressing global concerns. Fortunately, two-dimensional (2D)
Janus materials, possessing broken spatial symmetry, with emerging
pressure-dependent and non-linear optical response, piezoelectricity, valley
polarization, Rashba spin splitting and more, have established a substantial
platform for exploring and applying modifiable physical, chemical and
biological properties in material science and offered a promising solution for
these energy and information issues. To furnish researchers with a
comprehensive repository of 2D Janus family, this review systematically
summarizes their theoretical predictions, experimental preparations, and
modulation strategies. It also retrospectively outlines the recent advances in
modifiable properties, applications, and inherent mechanisms in optics,
catalysis, piezoelectricity, electrochemistry, thermoelectricity, magnetism,
and electronics, with a focus on experimentally realized hexagonal and trigonal
Janus structures. Additionally, their current research state is summarized, and
potential opportunities and challenges that may arise are highlighted. Overall,
this review aims to serve as a valuable resource for designing, fabricating,
regulating, and applying 2D Janus systems, both theoretically and
experimentally. This review will strongly promote the advanced academic
investigations and industrial applications of 2D Janus materials in energy and
information fields.
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