Patent ID: 7128974

Claim:
A layer of single crystal CVD diamond having a thickness of greater than 2 mm and having one or more of the following characteristics: 1) a charge collection distance at 300 K of at least 100 μm measured at an applied field of 1 V/μm: 2) a value for the product of the average carrier mobility and lifetime μτ such that it exceeds 1.0×10 −6 cm 2 /V at 300 K; 3) an electron mobility (μ e ) measured at 300 K greater than 2400 cm 2 V −1 s −1 ; 4) a hole mobility (μ h ) measured at 300 K greater than 2100 cm 2 V −1 s −1 ; and 5) in the off state, a resistivity at 300 K greater than 10 12 Ω cm at an applied field of 50 V/μm.