Cadmium Sulfide Sputtering Targets

Cadmium Sulfide Sputtering Targets

Cadmium sulfide (CdS) sputtering targets are used in various advanced technology applications due to their unique optical and electronic properties. Here’s how CdS sputtering targets are employed in specific product applications:

Photovoltaic Cells

Application: CdS is a critical component in certain thin-film solar cells, particularly in the CdTe (Cadmium Telluride) solar cells.

Role: CdS is used as a buffer layer between the CdTe absorber layer and the transparent conductive oxide (TCO) layer. It helps in creating a p-n junction, which is essential for converting sunlight into electricity efficiently.

Thin-Film Transistors (TFTs)

Application: CdS is used in the fabrication of thin-film transistors, which are integral to various display technologies, including liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs).

In TFTs, CdS is often used as the semiconductor layer or as part of the gate dielectric. Its properties help in controlling the flow of electrical current through the transistor, crucial for display functionality.

 Photodetectors and Imaging Sensors

Application: CdS is used in photodetectors and imaging sensors due to its sensitivity to visible light.

Role: CdS thin films are deposited to create photosensitive layers that can detect light and convert it into an electrical signal. This application is vital for various optical sensing devices and imaging systems.

 Optoelectronic Devices

Application: Used in various optoelectronic applications such as light-emitting devices and optical switches.

CdS thin films can be used in optoelectronic devices for their ability to absorb and emit light in specific wavelengths. Their role is to provide specific optical and electronic properties that are required for the device’s operation.

Luminescent Materials

Application: CdS is used in the production of luminescent materials and phosphors for lighting and display technologies.

CdS thin films are used in phosphors for their ability to emit light when excited by an external energy source. They are used in some types of fluorescent lighting and display technologies.