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Gesn Devices For Short-Wave Infrared Optoelectronics, Benjamin Ryan Conley
Gesn Devices For Short-Wave Infrared Optoelectronics, Benjamin Ryan Conley
Graduate Theses and Dissertations
The electronics industry has a large silicon infrastructure for the manufacture of complementary-metal oxide semiconductor (CMOS) based electronics. The increasing density of Si based circuits has set a pace that is now pushing the physical limits of connectivity between devices over conventional wire based links. This has driven the increasing interest in Si based optoelectronics and to use the groundwork already established by the electronics industry for lower cost optical communications. The greatest limitation to this effort has been the incorporation of a Si based laser, which requires integration of a direct bandgap material within this CMOS process.
The Ge1-xSnx …
Synthesis And Characterization Of Nanocrystals And Their Application For Photodetectors, Ahmad Nusir
Synthesis And Characterization Of Nanocrystals And Their Application For Photodetectors, Ahmad Nusir
Graduate Theses and Dissertations
Room temperature operation is considered one of the essential restrictions in the design of electronic devices. Photodetectors are unable to detect light efficiently at room temperature due to high dark currents. Semiconductor nanocrystals possess unique optical and electrical properties which make them ideal for fabricating uncooled photodetectors. In this project, nanocrystals were synthesized and implemented in devices that detect light at room temperature.
Nanocrystalline I-III-VI2 and II-VI semiconductors (CuInS2 and CdSe) were grown by a wet chemical method, and characterized using: optical absorption, photoluminescence, Raman scattering, and x-ray diffraction. The optical absorption and photoluminescence spectra of the nanocrystals were recorded …