Engineering van der Waals Materials for Advanced Metaphotonics

Abstract

The outstanding chemical and physical properties of 2D materials, together with their atomically thin nature, make them ideal candidates for metaphotonic device integration and construction, which requires deep subwavelength light–matter interaction to achieve optical functionalities beyond conventional optical phenomena observed in naturally available materials. In addition to their intrinsic properties, the possibility to further manipulate the properties of 2D materials via chemical or physical engineering dramatically enhances their capability, evoking new science on light–matter interaction, leading to leaped performance of existing functional devices and giving birth to new metaphotonic devices that were unattainable previously. Comprehensive understanding of the intrinsic properties of 2D materials, approaches and capabilities for chemical and physical engineering methods, the resulting property modifications and novel functionalities, and applications of metaphotonic devices are provided in this review. Through reviewing the detailed progress in each aspect and the state-of-the-art achievement, insightful analyses of the outstanding challenges and future directions are elucidated in this cross-disciplinary comprehensive review with the aim to provide an overall development picture in the field of 2D material metaphotonics and promote rapid progress in this fast emerging and prosperous field.

All-2D material photonic devices

“…Although nanofabrication and CVD growth of 2D materials need to improve further, the manipulation of chemical and physical properties of 2D materials has been developed dramatically in recent years. 37 Overall, photonic devices made of 2D materials will benefit from this rich research environment.…”

Light People: Professor Baohua Jia

“…We believe further developing nanofabration techniques on two-dimensional materials can effectively engineer materials on the atomic level and lead to metadevices with more desired and designed properties. We have a recent paper called “Engineering van der Waals Materials for Advanced Metaphotonics” published on Chemical Review with Prof. Chengwei Qiu, which elaborates our thoughts on this aspect 2 .…”

Unveiling the capacitive energy storage of linear CTAB or tetrahedral TBAB organic-molecule intercalated MoS2

“…Supercapacitors hold great promise as large-scale fast energy storage devices due to their low cost, easy processability, safe operation, long cycle life (>10 6 charge-discharge cycles) and rapid charging/discharging capability. [1][2][3][4] The electrode material is one of the most important parts of a supercapacitor.…”

“…Group VI transition metal dichalcogenides (TMDs) are fundamentally attractive in the eld of electrochemical energy storage, because of their unique structure and rich physical/ chemical properties. The relatively large and easy-to-expand interlayer distance of molybdenum disulde (MoS 2 ) layered van der Waals material, 5,6 a representative member of TMDs, enables facile metal cation transport in the electrolyte and leads to higher intercalation-type pseudo-capacitance. [7][8][9] Activated carbon-based electrode materials have been widely studied in the eld of supercapacitors due to their large surface area, high conductivity, and porous structure.…”