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ABSTRACT
Quantum wells made of lead chalcogenides (PbS, PbSe, and PbTe) are well-suited for the study of strongly confined quantum systems with potential applications in technology. These quantum wells can be tuned to achieve electronic transitions at near-infrared wavelengths, making them useful for fields like optoelectronics, telecommunications and medical electronics. Recently it has been proposed that nanoscale "memristors" - devices featuring coupled ionic and electronic transports- could be realized using these materials leading to hysteresis characteristics being observed in many semiconductor designs including those employing a quantum-well structure. In this paper we report on our successful synthesis of PbS/CZTS quantum wells by chemical means which were then characterized via UV-visible spectroscopy as well as Fourier-transform infrared analysis confirming nano formation therein. ABSTRACT Quantum wells made of lead chalcogenides (PbS, PbSe, and PbTe) are well-suited for the study of strongly confined quantum systems with potential applications in technology. These quantum wells can be tuned to achieve electronic transitions at near-infrared wavelengths, making them useful for fields like optoelectronics, telecommunications and medical electronics. Recently it has been proposed that nanoscale "memristors" - devices featuring coupled ionic and electronic transports- could be realized using these materials leading to hysteresis characteristics being observed in many semiconductor designs including those employing a quantum-well structure. In this paper we report on our successful synthesis of PbS/CZTS quantum wells by chemical means which were then characterized via UV-visible spectroscopy as well as Fourier-transform infrared analysis confirming nano formation therein.
