This thesis presents a study of lasing properties and optical amplification in semiconducting conjugated polymers and dendrimers. Configured as surface-emitting distributed feedback lasers, the effect of incorporating wavelength-scale microstructure on the output of the devices …
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Carbon nanotubes (CNTs) are cylindrical structures of hexagonally bonded carbon atoms with diameters of a few nanometers. CNTs are generated with different structures characterized by their diameter and chirality (twist). Two types of semiconducting CNTs are zigzag (chirality &t…
Two-dimensional (2D) crystals have attracted much attention in recent years due to their unique physical, chemical, and mechanical properties. Semiconducting 2D crystals with van der Waals structures, such as transition metal dichalcogenides, are considered promising candidates …