Descripción
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We have analyzed the spectral sub-bandgap photoresponse of silicon (Si) samples implanted with vanadium (V) at different doses and subsequently processed by pulsed-laser melting. Samples with V concentration clearly above the insulator-metal transition limit show an important increase of the photoresponse with respect to a Si reference sample. Their photoresponse extends into the far infrared region and presents a sharp photoconductivity edge that moves towards lower photon energies as the temperature decreases. The increase of the value of the photoresponse is contrary to the classic understanding of recombination centers action and supports the predictions of the insulator-metal transition theory. | |
Internacional
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Si |
JCR del ISI
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Si |
Título de la revista
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Applied Physics Letters |
ISSN
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0003-6951 |
Factor de impacto JCR
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3,794 |
Información de impacto
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Volumen
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103 |
DOI
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Número de revista
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Desde la página
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032101-1 |
Hasta la página
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032101-5 |
Mes
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SIN MES |
Ranking
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