CVD diamond films as photon detectors

We present an overview of our research on Chemical Vapour Deposited (CVD) diamond Þlms as photon detectors. Samples are grown in our laboratories using three di¤erent methods: microwave plasma enhanced CVD (MWPECVD), DC glow discharge CVD (DCGDCVD) and hot Þlament CVD (HFCVD). We present the photoelectrical properties of these samples having contacts in planar and sandwich conÞguration, taking into account the roles of material microstructure and electrical conÞguration. Their photoresponse has been measured in the whole visibleÐnear UV spectral range with the aim to characterize their UV selectivity and to evaluate their gap-state density.