The saturable absorber of niobium diselenide (NbSe2), with a wide working bandwidth and excellent nonlinear optical response, was prepared using liquid-phase exfoliation. Its saturation intensity modulation depth were 5.35 MW/cm2 6.3%, respectively. Stable mode-locking center wavelength 1558.7 nm an erbium-doped fiber laser based on NbSe2 successfully achieved. maximum average output power the ...

Quantum confinenement and manipulation of charge carriers are critical for achieving devices practical quantum technologies. The interplay between electron spin valley, as well the possibility to address their states electrically optically, make two-dimensional (2D) transition metal dichalcogenides an emerging platform development devices. In this work, we fabricate based on heterostructures la...

Disulfide-containing proteins are ideal models for studies of protein folding as the folding intermediates can be observed, trapped, and separated by HPLC during the folding reaction. However, regulating or analyzing the structures of folding intermediates of peptides and proteins continues to be a difficult problem. Recently, the development of several techniques in peptide chemistry and biote...

Oxidative DNA damage occurs in vivo by hydroxyl radical generated in metal-mediated Fenton-type reactions. Cell death and mutation caused by this DNA damage are implicated in neurodegenerative and cardiovascular diseases, cancer, and aging. Treating these conditions with antioxidants, including highly potent selenium antioxidants, is of growing interest. Gel electrophoresis was used to directly...

In this article, we report the first successful preparation of single- and few-layers of tantalum diselenide (2H-TaSe₂) by mechanical exfoliation technique. Number of layers is confirmed by white light contrast spectroscopy and atomic force microscopy (AFM). Vibrational properties of the atomically thin layers of 2H-TaSe₂ are characterized by micro-Raman spectroscopy. Room temperature Raman mea...

Herein we report the one-pot electrodeposition of copper indium gallium diselenide, CuIn(1-x)Ga(x)Se(2) (CIGS), thin films as the p-type semiconductor in an ionic liquid medium consisting of choline chloride/urea eutectic mixture known as Reline. The thin films were characterized by scanning electron microscopy with energy dispersive X-ray analysis, transmission electron microscopy, X-ray photo...

Design and fabrication of low-cost, highly efficient and robust three-dimensional (3D) hierarchical structure materials for electrochemical reduction of water to make molecular hydrogen is of paramount importance for real water splitting applications. Herein, a 3D hydrogen evolution cathode constructed by in situ growing of cobalt diselenide nanobelts on the surface of commercial carbon fiber f...