Cadmium sulfide is yellow powder and odorless, which can process into sputtering targets of variable sizes and shapes. There are two structure of CdS, α-type (hexagonal crystal) and β-type (cubic crystal). The first one is lemon yellow with relative density 4.82 and melting point 1750℃.The second one is orange yellow with relative density 4.50. CdS is insoluble in water, (NH4)2S and Na2S solution, however tend to dissolve in ammonium hydroxide and soluble in concentrated acid or hot dilute acid. Cadmium perchlorate solution, cadmium chloride or cadmium sulfate solution is the raw material.
Cadmium sulfide(CdS) sputtering targets are critical for producing thin film with excellent semiconducting and optoelectronic properties, making them a valuable material in photovoltaic cells, optoelectronic devices, and various sensing techologies. Known for its distinctive bandgap and optical characteristics, CdS enables the development of devices that require efficient light absorption, conductivity, and stable performance, which are essential in industries focused on renewable energy, display technology, and precision sensors.
Cadmium Sulfide
| CAS No.:1306-23-6 | EC No.:215-147-8 | Molecular Formula:CdS | Molecular Formula:144.46 |
| Density:4.82 | Melting Point:1750℃ | UN 3077 9/PG 3 |
Applications
High pure cadmium sulfide is semiconductor material and photoelectric material.Low pure CdS applies to pigments of enamel, glass, ceramic, plastic and coating.
One of the primary applications of cadmium sulfide sputtering targets is the photovoltaic sector, particularly in thin-film solar cells. CdS serves as an effective n-type semiconductor layer in cadmium telluride (CdTe) solar cells, where it enhances the absorption of sunlight and boosts the efficiency of energy conversion. CdS’s compatibility with CdTe enables these solar cells to achieve high power output and reliability, making it a popular choice for large-scale solar installations.
In optoelectronics, cadmium sulfide is used for is its light-responsive properties, making it ideal for applications like photodetectors, LEDs, and display technologies. CdS thin films are sensitive to light and can convert light signals into electrical signals, enabling their use in devices that require precise light detection. CdS also serves as a material in quantum dots for display screens, where its ability to emit bright, stable colors improves the vibrancy and energy efficiency of displays.
In the field of sensing technology, CdS’s semiconducting properties allow it to be used in gas and light sensors. CdS thin films can detect specific wavelengths of light, making them suitable for light-dependent resistors (LDRs) and other photo-sensing applications. These sensors are widely used in automation, environmental monitoring, and industrial equipment, where reliable, responsive detection is crucial.