Chapter 12.5, Problem 3PE

Interpretation Introduction

Interpretation: The element with which $\text{GaAs}$ forms an $\text{n}-\text{type}$ semiconductor is to be identified.

Concept introduction: Gallium arsenide, $\text{GaAs}$ can be made into an $\text{n}-\text{type}$ or a $\text{p}-\text{type}$ semiconductor by replacing some of the $\text{As}$ atoms with another elements.

To identify: The element with which $\text{GaAs}$ forms an $\text{n}-\text{type}$ semiconductor.