(a) Crystal structure of MoS2: S atoms in gold and Mo in black with unit cell parameter a and b, (b) top view of a single-layer MoS2 structure in honeycomb shape; (c) HRTEM of 2H-MoS2 (top insert is the Fast Fourier Transform (FFT) image showing the planes; slight distortion is due to the tilting of the flake in the TEM; a1, a2 and a3 presented HRTEM image is the Mo-Mo interatomic distance of 2.8 Å for 2H-MoS2 (d–e) schematic of the indirect electron transition in bulk MoS2 and direct electron transition in single layer MoS2 respectively.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used in a variety of applications, including microscopic actuators and grippers for surgical robots...
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