Scalable Fabrication of 2D Semiconducting Crystals for Future Electronics

Abstract

Two-dimensional (2D) layered materials are anticipated to be promising for future electronics. However, their electronic applications are severely restricted by the availability of such materials with high quality and at a large scale. In this review, we introduce systematically versatile scalable synthesis techniques in the literature for high-crystallinity large-area 2D semiconducting materials, especially transition metal dichalcogenides, and 2D material-based advanced structures, such as 2D alloys, 2D heterostructures and 2D material devices engineered at the wafer scale. Systematic comparison among different techniques is conducted with respect to device performance. The present status and the perspective for future electronics are discussed.

Optoelectronic Devices Based on Atomically Thin Transition Metal Dichalcogenides

“…The prospects for commercialization will depend on device reliability and means for low-cost and large-volume production. The growth of TMD monolayers has made large progress in recent years [117][118][119][120][121][122][123][124][125][126], but routes to control the chemical doping are still to be devised. Direct growth on plastic substrates does not seem feasible.…”

Atomic Layer Deposition of Crystalline MoS2 Thin Films: New Molybdenum Precursor for Low‐Temperature Film Growth

“…[6,[14][15][16] The appealing properties of TMDCs have led to a wide range of proposed applications. MoS 2 has been extensively studied as a channel material in conventional field-effect transistors, [17][18][19][20][21] as well as phototransistors and other optoelectronic devices. [16,21,22] The 2D structure of TMDCs plays a crucial role in possible applications relying on more exotic quantum phenomena, such as valleytronics.…”

Two-Dimensional Electronics — Prospects and Challenges

“…Li and Östling provide an excellent overview of the status of 2D material synthesis [21] and put special emphasis on the scalability of the discussed techniques and the attainable 2D material quality. Yogeesh and coauthors review their recent progress on flexible graphene devices and demonstrate a flexible graphene-based radio frequency receiver operating at 2.4 GHz [23].…”

“…This Special Issue comprises a total of 12 papers (four review papers and eight contributed articles) and spans a wide range of topics, which extend from first principle band structure calculations [14] and molecular dynamics simulations of the thermal properties [15] of 2D materials, over numerical simulations and compact modeling of 2D transistors [16][17][18] and other 2D devices [19,20], 2D material growth [21,22] and processing issues [22][23][24], up to experimental 2D devices and their applications [22,23,25]. Regarding the materials, the papers of the Special Issue deal with graphene and graphene nanoribbons [16][17][18][19][20]22,23,25], TMDs (transition metal dichalcogenide) [14,21,22,24,25], phosphorene, which frequently is called 2D black phosphorus [24,25], and 2D metal oxides [25].…”

“…Regarding the materials, the papers of the Special Issue deal with graphene and graphene nanoribbons [16][17][18][19][20]22,23,25], TMDs (transition metal dichalcogenide) [14,21,22,24,25], phosphorene, which frequently is called 2D black phosphorus [24,25], and 2D metal oxides [25]. Finally, the papers discuss More Moore electronics and transistors [16][17][18], as well as applications belonging to the More Than Moore domain of semiconductor electronics, including optoelectronics [22], RF electronics [16,23], sensors [20,25], and field emitters [19].…”