Detection of light in the near- and short-wave infrared spectral region is of great interest for applications ranging from imaging to sensing. However, silicon commonly employed for photodetectors is limited in its spectral range to wavelengths of 400... 1100nm due to its band gap of ∼1.1eV. Materials for light detection in the wavelength range >1100 nm are typically III-V-based semiconductors such as e.g. InGaAs which are difficult to integrate with CMOS technology, hindering use in main-stream applications due to technical issues and associated high cost. Here, we present graphene-silicon hybrid structure photodetectors which demonstrate an extended spectral detection range from ∼400... 1700nm.