Figure 2
Duration of the surface photovoltage effect.
(a) Spectra recorded under the repetitive pump pulses arriving at the intervals of τ = 4, 32 and 256 µs. Spectra were recorded at T = 10 K and t = -1 ps. (b) Photovoltaic shift δ as functions of the interval time τ. The error bars represent typical standard deviations.
