Figure 5.

Band diagrams of metal–semiconductor-metal structure. (a) Dark conditions under bias Vb and (b) under illumination with bias Vb. Φ1 and Φ2 are the Schottky barriers at the two ends. λ is the depletion width.

Kuo et al. Nanoscale Research Letters 2013 8:327   doi:10.1186/1556-276X-8-327
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