Bande interdite du Germanium avec Cobra 3

Numéro d´article: P2530411

Principle

The conductivity of a germanium test piece is measured as a function of temperature. The energy gap is determined from the measured values.

Tasks

  1. The current and voltage are to be measured across a germanium test-piece as a function of temperature.
  2. From the measurements, the conductivity is to be calculated and plotted against the reciprocal of the temperature T. A linear plot is obtained, from whose slope the energy gap of germanium can be determined.

What you can learn about

  • Semiconductor
  • Band theory
  • Forbidden band
  • Intrinsic conduction
  • Extrinsic conduction
  • Impurity depletion
  • Valence band
  • Conduction band

Liste du matériel (extrait) Articles Montant
Module pour effet Hall 11801-00 1
Plaque pour effet Hall intrinsèque dans le Germanium 11807-01 1
Cobra3 unité de base, USB 12150-50 1
PHYWE Alimentation 0...12 V CC / 6 V, 12 V CA 13505-93 1
Trépied PHYWE 02002-55 1
Alimentation 12V / 2A 12151-99 1
Noix double PHYWE 02040-55 1
Tige carrée PHYWE, l 250mm 02025-55 1
Câble pour transmission de données, 9 pôles 14602-00 1
Fil de Connexion , 32 A, 500 mm, noir 07361-05 2
Logiciel Cobra3 Effet Hall 14521-61 1

Littérature pour cet article comme suit:

Title Produit Langue
TESS expert Handbook Laboratory Experiments Physics 16502-32 ENG

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Numéro d´article: P2530411

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