Local-illuminated ultrathin silicon nanomembranes with photovoltaic effect and negative transconductance
| P. Feng, I. Mönch, G. S. Huang, S. Harazim, E. J. Smith, Y. F. Mei, O. G. Schmidt Adv. Mater. 22, 3667 (2010) URL PDF |
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| Abstract | ||
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Ultrathin silicon nanomembranes (SiNMs) on insulators under local illumination reveal a gate-controlled photovoltaic effect and negative transconductance in Schottky transistors applying both homo- and heterocontacts. Tiny variations of Schottky barriers between source and drain contacts are responsible for the photovoltaic effect in ultrathin SiNMs and can be enhanced by gate voltage and/or contact design. |