Cadmium chalcogenide thin films

Bouroushian M, Loizos Z, Spyrellis N, Mamin G (1997) Hexagonal cadmium chalcogenide thin films prepared by electrodeposition from near-boihng aqueous solutions. Appl Surf Sci 115 103-110... 

Solid-state cadmium sensors based on chalcogenide thin film layer were prepared [388]. The electrochemical behavior of the sensor in terms of ionic sensitivity, detection Emit, Nernstian response interval and effect of pH was evaluated. 

Hodes G, Manassen J, Neagu S, Cahen D, Mirovski Y (1982) Electroplated cadmium chalcogenide layers Characterization and use in photoelectrochemical solar cells. Thin Solid Films 90 433-438... 

The objective of this protocol is the fabrication of a light-addressable potentiometric sensor (LAPS) for the detection of the pH value and the cadmium-ion concentration in aqueous solutions. For the pH-sensitive LAPS, use, e.g., Ta205 as a sensor membrane, and for the cadmium-selective LAPS, use a Cd2+-selective chalcogenide glass thin film as a heavy metal-sensitive material. The electrochemical sensor characterisation of the LAPS structure perform current vs. voltage (I/V) and constant current (CC) measurements. 

For the determination of the cadmium-ion concentration in aqueous solutions, prepare chalcogenide glass thin-film materials onto the half of the pH-sensitive LAPS structure (see Section 6.3.1). 

Determine the thickness of the Cd2+-selective chalcogenide glass thin films to be about 950 nm (e.g., profilometric measurements by means of Sloan Dektak II). The pH- and cadmium-sensitive LAPS structure and the schematic measurement set-up are shown in Fig. 6.1. 

ZnO and CdO are wide bandgap semiconductors, and these materials may serve as transparent conducting oxides for photovoltaics and flat panel displays. ZnO may also have applications in blue and ultraviolet fight emitting devices and laser diodes. Thin films of zinc and cadmium chalcogenides also have many potential applications. The technological goals of these materials have been smnmarized in several recent... 

Licht S. and Manassen J. (1987), Thin-film cadmium chalcogenide aqueous polysulfide photoelectrochemical solar cells with in situ tin storage , J. Electrochem. Soc. 134, 1064-1070. 

Velikanov and his team developed several interesting materials for optic and microelectronics based on A(II)-B(IV) chalcogenide systems, such as cadmium sulphides, selenides and other similar compounds. He showed that the thin films of such compounds are very promising materials for modem electronics. Really, such materials are now widely studied and used in modem electronic devices. 

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