In this work, the physical properties of iron sulfide (FeS2) thin films deposited by chemical spray-pyrolysis (CSP) technique were studied. The are on glass substrates at 200oC, using FeCl3 salt with thiourea (NH2)2CS as precursors. Structural analysis X-Ray diffraction manifested that contain two phases: Marcasite and Pyrite in planes (110), (111) angles 2θ =26.3°, =28.3° respectively. Optical...

Wide band gap II-VI semiconductor nanostructures have been extensively studied according to their great potentials for optoelectronic applications, while heterojunctions are fundamental elements for modern electronic and optoelectronic devices. Subsequently, a great deal of achievements in construction and optoelectronic applications of heterojunctions based on II-VI compound semiconductor one-...

All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. Modern silicon technology offers unprecedented spatial and temporal con...

Light-Emitting Diodes and Defects affect the performance of an optoelectronic device in fundamental ways. Dong-Soo Shin Jong-In Shim (article number 2200042) demonstrate how macroscopic characterization can be utilized to obtain information on microscopic defects active region light-emitting diode. They successfully show that parameters such as ideality factor S-parameter are correlated with in...

An elective course on optoelectronic materials and devices offered at the University of San Diego is described. Main topics include band structure, semiconductor alloys, optical processes, photodetectors, light emitting diodes, laser diodes, fiber optics, and quantum wells. Laboratory projects and innovative pedagogical aspects of the course are also discussed. 2003 Optical Society of America ...

Adaptive resonance architectures are neural nets that are capable of classifying arbitrary input patterns into stable category representations. A hybrid optoelectronic implementation utilizing an optical joint transform correlator is proposed and demonstrated. The resultant optoelectronic system is able to reduce the number of calculations compared to a strictly computer-based approach. The res...