Diphenylsilane is widely used in the production of silicone polymers and resins, where it acts as a key intermediate. It is particularly valuable in the synthesis of phenyl-modified silicones, which exhibit enhanced thermal stability and resistance to oxidation. These materials are commonly employed in high-temperature applications, such as coatings for electronic components and protective layers in aerospace materials.

In the field of organic synthesis, diphenylsilane serves as a reducing agent, facilitating the conversion of various functional groups, including carbonyl compounds, into their corresponding alcohols. This makes it a useful reagent in the preparation of pharmaceuticals and fine chemicals.

Additionally, diphenylsilane is utilized in the development of advanced materials, such as liquid crystalline polymers and optoelectronic devices. Its ability to form stable silicon-carbon bonds contributes to the creation of materials with tailored optical and electronic properties, making it suitable for use in displays, sensors, and solar cells.

In the semiconductor industry, diphenylsilane is employed in chemical vapor deposition (CVD) processes to deposit silicon-containing thin films. These films are critical for the fabrication of microelectronic devices, providing insulation and passivation layers that enhance device performance and reliability.