Patent ID: 8501143

Claim:
A single crystal diamond prepared by CVD and having at least one of the following characteristics: (i) in the off state, a resistivity R 1 greater than 1×10 12 Ωcm at an applied field of 50 V/μm measured at 300 K; (ii) a μτ product measured at 300 K greater than 1.5×10 −6 cm 2 V −1 where, μ is the mobility and τ is the lifetime of the charge carriers; (iii) an electron mobility (μ e ) measured at 300K greater than 2400 cm 2 V −1 s −1 ; (iv) a hole mobility (μ h ) measured at 300K greater than 2100 cm 2 V −1 s −1 ; and (v) a high charge collection distance greater than 150 μm measured at an applied field of 1 V/μm and 300 K.