Wavelength-selective organic photodetectors for near-infrared applications based on novel neutral dithiolenes

Based on a new general class [M(R,R'timdt) 2 ] of neutral dithiolenes, an innovative photodetector has been developed. By casting the organ material onto an opportunely configured quartz substrate a planar metal-semiconductor-meta structure has been obtained. Thanks to the strikingly intense absorption in the near infrared of these compounds, the device photoconductivity is enhanced when the irradiating wavelength belongs to this region of the spectrum. The device therefore acts as an intrinsically wavelength-selective photodetector.