Patent ID: 7282720

Claim:
A radiation sensor device comprising: a body portion having an entrance through which radiation may enter the body portion; a radiation detector capable of detecting radiation have at least one wavelength in the range of from about 125 nm to about 1100 nm, the radiation detector comprising: (i) a silicon-containing material comprising an n-doped layer disposed on a pair of p-doped layers, and (ii) a passivation layer disposed on a radiation impingement surface of the silicon containing material, the passivation layer comprising nitrided silicon dioxide, a metal silicide and mixtures thereof; and an optical filter interposed between the entrance and the radiation detector, the optical filter having: (i) an optical transmittance of at least about 40% at a wavelength in the range of from about 175 nm to about 300 nm, and (ii) an optical transmittance of no greater than about 5% at a wavelength of greater than about 350 nm.