PdSe2 single crystals synthesized by the self-flux method
2024年10月1日 · Here we report the growth process details of large area single-crystal PdSe 2 by using the self-flux method. The crystal quality and elemental composition were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), Raman spectroscopy and Transmission Electron Microscopy (TEM). 2.
Highly Efficient, Ultrabroad PdSe2 Phototransistors from Visible to ...
2021年11月15日 · The noble transition metal dichalcogenide palladium diselenide (PdSe2) is an ideal candidate material for broad-spectrum photodetection owing to the large bandgap tunability, high mobility, low the...
PdSe2 (Palladium Diselenide) - HQ graphene
The single crystal PdSe2 is characterized using: XRD: single crystal and powder X-ray diffraction (D8 Venture Bruker and D8 Advance Bruker) EDX: Energy-dispersive X-ray spectroscopy for stoichiometric analysis
TEM and XRD characterizations of PdSe 2 flakes. a HRTEM
For the further investigation of our experimentally prepared PdSe 2 , X-ray diffraction (XRD) characterization was performed. As shown in Fig. 2d, the diffraction pattern exhibits six robust...
NML综述 | 二维PdSe₂材料及其异质结在电子/光电领域中的应用和 …
2021年9月2日 · 本文介绍了PdSe₂的原子结构、能带图和各向异性等基本性质；包括CVD、CVT等合成方法；场效应晶体管、光电探测器等电子应用；图像传感器、热电、激光等系统应用。 文章的最后给出了对PdSe₂材料的展望，读者可以看到一些新的发展应用前景等。 图1. PdSe₂材料结构、制备、性质及器件应用的示意图。 II PdSe₂结构. 晶体结构：PdSe₂是一种具有正交晶格和低对称性的二维皱褶五边形材料，被鉴定为第一个具有五边形结构的TMDC。 电子轨道：在单层PdSe₂ …
Giant nonlinear optical activity in two-dimensional palladium ...
2021年2月17日 · Here, we report our comprehensive study on the nonlinear optical processes in palladium diselenide (PdSe 2) that has a near-infrared bandgap. Interestingly, this material exhibits a unique...
Thickness effect of 2D PdSe2 film on performance of PdSe2/Si ...
2023年9月22日 · On the basis of the XRD patterns, it can be found that the grain size or crystalline grain of the PtSe 2 is changed with the increase of film thickness. Under reverse bias, the depletion region can be further extended, and the reverse biased applied electric field can effectively improve the separation efficiency of the photo-generated electron ...
Vapor phase growth of two-dimensional PdSe2 nanosheets for …
2020年5月30日 · Here, we report a reliable process to synthesize PdSe2 via chemical vapor deposition (CVD) method. Through systematic regulation of temperature in the growth process, we can tune the thickness, size, nucleation density and morphology of PdSe2 nanosheets.
High-Speed Self-Powered PdSe2/Si 2D-3D PIN-like Photodetector …
2024年8月5日 · In this work, a PdSe 2 2D material with a quantum island structure is prepared by a simple thermal-assisted conversion method. A new type of photodetector with a PdSe 2 /n – -Si/n + -Si vertical PIN-like structure is innovatively proposed.
中南大学刘艳平团队Nature子刊:全面解析二硒化钯中巨大的非线性 …
2021年3月5日 · 鉴于此， 中南大学刘艳平教授，深圳大学贺廷超副教授和湖南大学潘安练教授（共同通讯作者） 对具有近红外带隙的二硒化钯（PdSe 2）非线性光学过程进行了全面的研究，制造了具有不同层的大尺寸PdSe 2 薄片。 有趣的是，这种材料表现出独特的与厚度相关的二次谐波产生（SHG）特征，这与其他过渡金属硫族化合物形成了鲜明的对比。 此外，在800 nm激发下，1-3 L和块状PdSe 2 分别表现出4.16×10 5 、2.58×10 5 、1.51×10 5 和1.80×10 4 cm …