Mechanism

Spectral cut-off1E-31E-4Q.E.1E-51E-60,64 I c0,77 I c0,89 I c1E-71E-81E-9200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600λ (nm)The hot-spot model predicts constant efficiencybefore the cut-off and vanishing efficiency atlarger wavelengths. Indeed, thereappears the plateau and the clearly seen roll-offwavelength that depends on the bias currentInstitut für Weltraumsemsorik und Planetenerkundung 11