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Transient lateral photovoltaic effect in patterned metal-oxide-semiconductor films



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Cascales, J. P. y Martínez, I. y Díaz, D. y Rodrigo Martín-Romo, José Augusto y Aliev, F. G. (2014) Transient lateral photovoltaic effect in patterned metal-oxide-semiconductor films. Applied physics letters, 104 (23). ISSN 0003-6951

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URL Oficial: http://dx.doi.org/10.1063/1.4882701

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The time dependent transient lateral photovoltaic effect has been studied with ls time resolution and with chopping frequencies in the kHz range, in lithographically patterned 21 nm thick, 5, 10, and 20 lm wide, and 1500 lm long Co lines grown over naturally passivated p-type Si (100). We have observed a nearly linear dependence of the transitorial response with the laser spot position. A transitorial response with a sign change in the laser-off stage has been corroborated by numerical simulations. A qualitative explanation suggests a modification of the drift-diffusion model by including the influence of a local inductance. Our findings indicate that the microstructuring of position sensitive detectors could improve their space-time resolution.

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© 2014 AIP Publishing LLC. The authors acknowledge A. Levanuyk for his interest and fruitful discussions, L. Martin for her simulations on the initial stages of the work and Ch. van Haesendock for preparing the samples. This work has been supported by the Spanish MINECO (MAT2012- 32743) and Comunidad de Madrid (P2009/MAT-1726) grants.

Palabras clave:Silicon; Surface.
Materias:Ciencias > Física > Optica
Código ID:29605
Depositado:20 Abr 2015 08:26
Última Modificación:20 Abr 2015 14:36

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