Synthesis and enhanced piezoelectric response of CVD-grown SnSe …
2022年12月5日 · Herein, we investigated the synthesis and piezoelectric properties of multilayer SnSe nanosheets grown by chemical vapor deposition (CVD). The SnSe nanosheets exhibited high single-crystallinity, large area, and good stability.
Growth of Large‐Sized 2D Ultrathin SnSe Crystals with In‐Plane ...
2023年2月14日 · In this work, we report the low-pressure PVD synthesis of high-quality 2D SnSe crystals with thinner thickness and larger lateral sizes. The as-synthesized SnSe displays high crystallinity and phase purity, as confirmed by Raman, X-ray photoemission spectroscopy (XPS), and scanning transmission electron ( (micro-scopy)) (STEM).
Atomically engineering interlayer symmetry operations of two ...
2024年12月30日 · Conversely, bottom-up methods, e.g., chemical vapor deposition (CVD), offer a superior platform to directly synthesize vdW materials with sharp interfaces, assisted by salt catalysts 39, thermal...
Spiral Growth of SnSe 2 Crystals by Chemical Vapor Deposition
2016年7月27日 · Although a lot of work has been reported on the growth and properties of 2D atomic layered materials, the growth mechanism for these crystals via the chemical vapor deposition method (CVD) has remained elusive. Here, a screw dislocation–driven spiral growth of SnSe 2 crystal flakes via CVD is reported.
High-quality textured SnSe thin films for self-powered, rapid …
2020年6月1日 · SnSe polycrystalline thin films with strong (400) texture prepared by one-step CVD. The obtained SnSe films possess a dimensionless ZT of 0.15 and a power factor of 0.322 mW m −1 K −2 at 550 K.
CVD Growth of Tin Selenide Thin Films for Optoelectronic …
Abstract: Tin Selenide (SnSe) thin film were grown onto Glass and alumina substrates by Chemical Vapor Deposition (CVD) method. The structural, micro-structural and morphological characterizations of the as grown thin films were investigated using XRD, SEM and Raman spectroscopy which reveals that the films on glass are phase pure oriented SnSe ...
SnSe field-effect transistors with improved electrical properties
2021年7月31日 · Here, we report a high-performance SnSe FET based on a van der Waals (vdWs) heterostructure of SnSe encapsulated in hexagonal boron nitride (hBN) together with graphene contacts. The device exhibits a high on/off ratio exceeding 1 × 109, and a carrier mobility of 118 cm2·V−1·s−1.
Structural, morphological, optical and sensing properties of SnSe …
2020年1月1日 · The obtained SnSe and SnSe 2 materials deposited onto alumina substrates show interesting sensing properties towards methane gas. SnSe sensor show a better sensitivity than SnSe 2 sensor at operating temperature of 200 °C. The obtained results suggest that SnSe can be a new promising material for chemoresistive gas sensing.
Optimization of growth conditions for direct synthesis of SnSe 2 …
2025年1月1日 · In this study, high-quality tin diselenide (SnSe 2) thin films were successfully synthesized using an optimized atmospheric pressure chemical vapor deposition (APCVD) technique.
Controlled growth of high-quality SnSe nanoplates assisted by …
2024年11月25日 · This study demonstrates the application of ML for controlled chemical vapor deposition (CVD) growth of SnSe nanoplates (NPs), a promising thermoelectric material. Four ML regression models are implemented to predict the side length (SL) of SnSe NPs based on CVD growth parameters.