Figure 4.

Photovoltage spectra obtained at room and liquid nitrogen temperatures.Φrt is an estimate of the barrier height derived from the photo-emf spectral measurements at 300 K with and without a Si filter; Φ0, Φ1, and Φ2 are barrier heights estimated from the photo-emf spectral response at 80 K (solid lines show line fits, and dotted ones set 95% confidence bands).

Chizh et al. Nanoscale Research Letters 2013 8:177   doi:10.1186/1556-276X-8-177
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