Q6/ a- Find the conductivity and resistivity of intrinsic Ge at 300K. b- If n-type impurity is added to the extent of one atom per 10® germanium atoms, find the conductivity and resistivity. Assume the following data; ni = 2.5 x 1013 cm-3, µn cm2 3800 V. Sec' cm? and Number of germanium atoms/ cm3 = 4.4 × 1022. Hp = 1800- V. Sec'

Q6/ a- Find the conductivity and resistivity of intrinsic Ge at 300K. b- If n-type impurity is added to the extent of one atom per 10® germanium atoms, find the conductivity and resistivity. Assume the following data; ni = 2.5 x 1013 cm-3, µn cm2 3800 V. Sec' cm? and Number of germanium atoms/ cm3 = 4.4 × 1022. Hp = 1800- V. Sec'

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter29: Solid-state Electronics

Section29.1: Conduction In Solids

Problem 8PP

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Question

Q6/ a- Find the conductivity and resistivity of intrinsic Ge at 300K.
b- If n-type impurity is added to the extent of one atom per 10° germanium
atoms, find the conductivity and resistivity.
Assume the following data; n¡ = 2.5 x 1013 cm-3,
Hn = 3800-
cm2
V. Sec'
cm2
and Number of germanium atoms/ cm3
Hp
1800:
V. Sec'
= 4.4 x 1022.

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