Among the state-of-the-art thermoelectric materials, tin selenide (SnSe) is one of the most promising candidates to apply to thermoelectric devices due to its environmentally friendly feature, high cost-effectiveness, and outstanding thermoelectric performance derived from its appropriate bandgap of ≈0.9 eV and intrinsic low κ l. 9, 10 ...

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).

2022年10月17日 · Here, we develop a physical vapor deposition approach to synthesize two-dimensional p-doped SnSe. The local phase segregation of SnSe 2 microdomains and accompanying interfacial charge transfer...

2017年11月9日 · Among the layered materials, SnSe 2 is an earth abundant n-type binary semiconductor whose band gap can be tuned for a wide range of electromagnetic spectrum from 1–2 eV making SnSe 2...

2022年1月15日 · SnSe 2 is detected at a relatively high temperature and low laser power by in-situ temperature-dependent Raman technology on SnSe single crystal and verified by TEM technology. Raman technology is sensitive and easy enough to detect few mounts of materials on the surface of base materials.

2014年4月16日 · We attribute the remarkably high ZT along the b axis to the intrinsically ultralow lattice thermal conductivity in SnSe. The layered structure of SnSe derives from a distorted rock-salt...

2024年11月18日 · Energy-dispersive X-ray spectroscopy in scanning TEM (STEM-EDS, Figure 1f) shows dominant peaks due to Sn and Se, quantified to a Sn: Se ratio of 1:1.94, corresponding (within the experimental error) to stoichiometric SnSe 2.

2024年10月16日 · We present a novel, straightforward, and reproducible one-pot heating up technique to synthesize core/crown SnSe/SnS nanosheets by a careful adjustment of the sulfur and selenium precursor reactivity. Here, the SnSe nanosheets are prepared via a wet-chemical route using SnCl 2 and selenium phosphines.

Here, we present a combined experimental and theoretical study of the atomic structure and electronic properties of epitaxial SnSe structures grown on a metallic Au (111) substrate, forming...

TEM imaging and the energy dispersive X-ray spectroscopy (EDX). For TEM characterization, the as-grown SnSe 2 nano akes were scratched from the FTO glass. We found the SnSe 2 nano akes...