Abstract Integrating two-dimensional (2D) materials into semiconductor manufacturing lines is essential to exploit their material properties in a wide range of application areas. However, current approaches are not compatible with high-volume on wafer level. Here, we report generic methodology for large-area integration 2D by adhesive bonding. Our approach avoids manual handling and uses equipment, processes, that readily available large-scale lines. We demonstrate the transfer CVD graphene...

Abstract Silica glass is a high-performance material used in many applications such as lenses, glassware, and fibers. However, modern additive manufacturing of micro-scale silica structures requires sintering 3D-printed silica-nanoparticle-loaded composites at ~1200 °C, which causes substantial structural shrinkage limits the choice substrate materials. Here, 3D printing solid with sub-micrometer resolution demonstrated without need step. This achieved by locally crosslinking hydrogen...

The performance of two-dimensional (2D) materials is promising for electronic, photonic, and sensing devices since they possess large surface-to-volume ratios, high mechanical strength, broadband light sensitivity. While significant advances have been made in synthesizing transferring 2D onto different substrates, there still the need scalable patterning with nanoscale precision. Conventional lithography methods require protective layers such as resist or metals that can contaminate degrade...

The interest in 2D materials continues to grow across numerous scientific disciplines as compounds with unique electrical, optical, chemical, and thermal characteristics are being discovered. All these properties governed by an all-surface nature nanoscale confinement, which can easily be altered extrinsic influences, such defects, dopants or strain, adsorbed molecules, contaminants. Here, we report on the ubiquitous presence of polymeric adlayers top layered transition metal dichalcogenides...

Low-cost, easily integrable photodetectors (PDs) for silicon (Si) photonics are still a bottleneck photonic-integrated circuits (PICs), especially wavelengths above 1.8 μm. Multilayered platinum diselenide (PtSe2) is semi-metallic two-dimensional (2D) material that can be synthesized below 450 °C. We integrate PtSe2-based PDs directly by conformal growth on Si waveguides. The operate at 1550 nm wavelength with maximum responsivity of 11 mA/W and response times 8.4 μs. Fourier-transform IR...

Membrane-based sensors are an important market for microelectromechanical systems (MEMS). Two-dimensional (2D) materials, with their low mass, excellent candidates suspended membranes to provide high sensitivity, small footprint sensors. The present work demonstrates pressure employing large-scale-synthesized 2D platinum diselenide (PtSe2) films as piezoresistive supported only by a thin polymer layer. We investigate three different synthesis methods contrasting growth parameters and...

PtS₂ and PtS thin films are synthesised by direct sulfurisation of Pt. X-ray photoelectron Raman spectroscopy used to unambiguously characterize both materials, providing a benchmark for future studies.

Abstract Thin films of noble-metal-based transition metal dichalcogenides, such as PtSe 2 , have attracted increasing attention due to their interesting layer-number dependent properties and application potential. While it is difficult cleave bulk crystals down mono- few-layers, a range growth techniques been established producing material varying quality layer number. However, date, no reliable high-throughput characterization assess number exists. Here, we use top-down liquid phase...

Platinum diselenide (PtSe${_2}$) is a two-dimensional (2D) material with outstanding electronic and piezoresistive properties. The can be grown at low temperatures in scalable manner which makes it extremely appealing for many potential electronics, photonics, sensing applications. Here, we investigate the nanocrystalline structure of different PtSe${_2}$ thin films by thermally assisted conversion (TAC) correlate them their We use scanning transmission electron microscopy structural...

Abstract 2D materials display very promising intrinsic material properties, with multiple applications in electronics, photonics, and sensing. In particular layered platinum diselenide has shown high potential due to its layer‐dependent tunable bandgap, low‐temperature growth, environmental stability. Here, the conformal area selective (AS) growth of PtSe 2 is presented defining a new paradigm for integration. The thermally‐assisted conversion which deposited by AS atomic layer deposition...

Two-dimensional materials (2DMs) have high potential in gas sensing, due to their large surface-to-volume ratio. However, most sensors based on 2DMs suffer from the lack of a steady state during exposure, hampering sensor calibration. Here, we demonstrate that analysis time differential signal output enables calibration chemiresistors platinum or tungsten diselenide (PtSe2, WSe2) and molybdenum disulfide (MoS2), which present nonstationary behavior. are synthesized by thermally assisted...

Long-term stable gas sensors by tiled networks from LPE-PtSe 2 .

Abstract Platinum diselenide (PtSe 2 ), a 2D noble metal dichalcogenide, has recently received significant attention due to its outstanding properties. It undergoes semimetal semiconductor transition when thinned, offers bandgap in the infrared range, and exhibits excellent stability ambient conditions. These properties make it prime active material optoelectronic chemical sensing devices. However, there is high demand for synthesis method that can produce large‐scale reliable high‐quality...

Grain boundaries in two-dimensional (2D) material layers have an impact on their electrical, optoelectronic, and mechanical properties. Therefore, the availability of simple large-area characterization approaches that can directly visualize grains grain 2D materials such as molybdenum disulfide (MoS2) is critical. Previous for visualizing MoS2 are typically based atomic resolution microscopy or optical imaging techniques (i.e., Raman spectroscopy photoluminescence), which complex limited to...

Excitons in atomically thin semiconductors interact very strongly with electromagnetic radiation and are necessarily close to a surface. Here, we exploit the deep-subwavelength confinement of surface plasmon polaritons (SPPs) at edge metal–insulator–metal plasmonic waveguide their proximity 2D excitons an adjacent semiconductor build ultracompact photodetector. When subject far-field excitation show that created throughout dielectric gap region our converted free carriers primarily anode...

Chemical vapor deposition (CVD) has been demonstrated as a highly promising technique for the production of graphene on large scale and enabling tunability intrinsic defects films during synthesis. In this work, we report correlation between density (DoD) kinetics interaction multi-layered (MLG) with nitrogen dioxide (NO2) used target gas. We grow MLG pre-patterned molybdenum (Mo) catalyst layer, tailoring DoD while growing at temperatures from 850 °C to 980 °C. Analysing Raman spectra, show...

PtSe2 is one of the most promising materials for next generation piezoresistive sensors. However, large-scale synthesis homogeneous thin films with reproducible electromechanical properties challenging due to polycrystallinity. It shown that stacking phases other than 1T phase become thermodynamically available at elevated temperatures are common during synthesis. these can make up a significant fraction in polycrystalline film and discuss methods characterize them, including their Seebeck...

Abstract Non‐covalent functionalization of layered 2D materials is an essential tool to modify and fully harness their optical, electrical, chemical properties. Herein, a facile method enabling the selective formation self‐assembled monolayers (SAMs) perylene bisimide (PBI) on transition metal dichalcogenides (TMDs), directly growth substrate (on‐chip), presented. Laterally‐resolved infrared atomic force microscopy (AFM‐IR) time‐of‐flight secondary ion mass spectrometry (TOF‐SIMS) are...

This paper reports a novel dry-transfer method for suspending and patterning two-dimensional (2D) materials across closed (sealed) cavities on target substrate. The process utilizes handling frames heat to ensure sufficient adhesion multi-layer resist stack pattern the suspended thin films. yield of intact monolayer graphene membranes is up more than 75 %, higher formerly reported [1]–[3]. also demonstrates high yields double-layer two different transition metal dichalcogenides. flow can be...

Platinum diselenide (PtSe <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> ) is a layered two-dimensional (2D) material with outstanding electronic and piezoresistive properties <sup xmlns:xlink="http://www.w3.org/1999/xlink">[1]–[3]</sup> . It has demonstrated its potential for membrane-based pressure sensor devices, where poly(methyl methacrylate) (PMMA) supported suspended the PtSe2 membranes...

Hierarchical structures are abundant in nature, such as the superhydrophobic surfaces of lotus leaves and structural coloration butterfly wings. They consist ordered features across multiple size scales, their advantageous properties have attracted enormous interest wide-ranging fields including energy storage, nanofluidics, nanophotonics. Femtosecond lasers, which capable inducing various material modifications, shown promise for manufacturing tailored hierarchical structures. However,...

Membrane-based sensors are an important market for microelectromechanical systems (MEMS). Two-dimensional (2D) materials, with their low mass, excellent candidates suspended membranes to provide high sensitivity, small footprint sensors. The present work demonstrates pressure employing large-scale-synthesized 2D platinum diselenide (PtSe${_2}$) films as piezoresistive supported only by a thin polymer layer. We investigate three different synthesis methods contrasting growth parameters and...

Hierarchical structures are abundant in nature, such as the superhydrophobic surfaces of lotus leaves and structural coloration butterfly wings. They consist ordered features across multiple size scales, their unique properties have attracted enormous interest wide-ranging fields, including energy storage, nanofluidics, nanophotonics. Femtosecond lasers, capable inducing various material modifications, shown promise for manufacturing tailored hierarchical structures. However, existing...

Platinum diselenide (PtSe2), a novel two-dimensional material from the class of noble-metal dichalcogenide (NMD), has recently received significant attention due to its outstanding properties. PtSe2, which undergoes semi metallic semiconductor transition when thinned, offers band-gap in infrared range and good air stability. These properties make it prime active optoelectronic chemical sensing devices. However, synthesis method that can produce large-scale reliable high quality PtSe2 is...

Two-dimensional (2D) materials are popular candidates for emerging nanoscale devices, including memristors. Resistive switching (RS) in such 2D material memristors has been attributed to the formation and dissolution of conductive filaments created by diffusion metal ions between electrodes. However, area-scalable fabrication patterned devices involves polymers that difficult remove from interfaces without damage. Remaining polymer residues often overlooked when interpreting RS...