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TEMA 1. SEMICONDUCTORES - OCW Usal

TEMA 1. SEMICONDUCTORES - OCW Usal

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E g (Ge) 0,7 eV<br />

E g (Si) 1,1 eV<br />

<strong>TEMA</strong> <strong>1.</strong> <strong>SEMICONDUCTORES</strong><br />

<strong>1.</strong>3. <strong>SEMICONDUCTORES</strong> INTRÍNSECOS Y EXTRÍNSECOS<br />

Modelo de bandas de energía: Conducción intrínseca<br />

FFI-UPV.es<br />

E<br />

T = 0 K<br />

E g<br />

Banda de conducción<br />

Banda prohibida<br />

Banda de valencia<br />

http://www.politecnicocartagena.com<br />

T > 0 K<br />

María Jesús Martín Martínez : mjmm@usal.es<br />

n =·p = n i i<br />

n: nº electrones/m 3<br />

p: nº electrones/m 3<br />

n i : densidad intrínseca<br />

de portadores<br />

16

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