In this work, NIR-emitting silver sulfide quantum dots (Ag2S QDs) with outstanding aqueous dispersion and superior stability can be directly prepared by a simple microwave synthesis method using...

The microstructure (composition, nonstoichiometry, size and shape of particles) of nanostructured semiconductor silver sulfide (Ag2S) determines its electronic structure, optical and electrical...

2015年5月22日 · Ag 2 S is an effective semiconductor material due to a large absorption coefficient and a direct band gap of 0.9 to 1.05 eV. It is a coinage mineral undergoes a structural phase transition. Above 183 °C, Ag 2 S appear with a …

The effect of deposition on the structural, optical and electrical properties of the Ag2S film is studied using x-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive...

Phase and compositional study (XRD) Figure 2 shows the X-ray diffraction pattern for synthesised Ag 2 S particles. A Rietveld refinement analysis was performed after x-ray diffraction pattern acquisition. The refinement of the monoclinic β-Ag2S phase yielded a structure solution similar to the structure reported by Sadanaga and Sueno . No ...

2016年7月1日 · XRD study confirms that the excessive silver in the synthesized Ag 2 S nanopowders is an impurity phase. Indeed, on the XRD patterns of nanopowders deposited from reaction mixtures VIII and IX (Fig. S1d, S1e), the weak diffraction reflections of …

分子Ag2S复杂溶液是通过化学还原Ag2S粉末，制造晶圆级高度结晶的Ag2S薄膜而合成的。 薄膜由于其固有的延展性而显示出可拉伸性，从而在14.9％的拉伸应变下保持了结构完整性。

2008年9月4日 · Powder X-ray diffraction (XRD), X-ray photo-electron spectroscopy (XPS) and scanning electron microscope (SEM) were employed to characterize the structure and compositions of those nanomaterials. Furthermore, ultraviolet visible (UV–vis) spectra of Ag 2 S with different morphologies show different spectral features.

2011年12月13日 · Experimental details, size distribution histograms, SAED, FTIR spectrum, PL decay data UV–vis absorption, PL spectra, XRD, and EDX of Ag2S QDs (PDF). This material ...

2022年1月1日 · Ag 2S SC NPs are characterized by X-ray diffraction, FTIR, optical absorption, photoluminescence and transmission electron microcopy. The particle size is estimated using Debye-Schrrer’s formula is 12 nm. TEM image shows the good homogeneity of particle size distribution and estimated particles is about 14 nm.