## Solid state physics |

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Page 215

CHAPTER 11

chapter, we will discuss the

an important role in the operation of virtually all semiconductor devices.

CHAPTER 11

**p-n JUNCTIONS**IN SEMICONDUCTORS 11-1 The Junction In thischapter, we will discuss the

**p-n junction**in a semiconductor. These junctions playan important role in the operation of virtually all semiconductor devices.

Page 236

(a) If J0 = 10.0 /xA for some

biased with 0.2 V. (b) Find the current if it is reverse biased with 0.2 V. Answer:

23.0 mA, -10.0 fiA. What happens to the Fermi level when the

(a) If J0 = 10.0 /xA for some

**p-n junction**, find the current at 300 K if it is forwardbiased with 0.2 V. (b) Find the current if it is reverse biased with 0.2 V. Answer:

23.0 mA, -10.0 fiA. What happens to the Fermi level when the

**p-n junction**is ...Page 261

If we expose the

holes in the VB. The electrons are swept into the n-side of the junction, and the

holes into the p-side, thus giving rise to a current. This device is called a

photodiode.

If we expose the

**p-n junction**to light, we excite electrons into the CB, leavingholes in the VB. The electrons are swept into the n-side of the junction, and the

holes into the p-side, thus giving rise to a current. This device is called a

photodiode.

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### Contents

XRay Diffraction | 37 |

Lattice Vibrations | 61 |

Classical Model of Metals | 89 |

Copyright | |

12 other sections not shown

### Common terms and phrases

Answer Appendix basis vectors bcc lattice bond Bragg angle Bragg's Law Bravais lattice Brillouin zone called Chapter collisions conduction electrons Consider conventional unit cell Cooper pairs depletion layer diode direction dispersion curve displacement distance doped effective mass elec electric current electric field electrons and holes emitter energy band equal example Fermi energy Fermi level Fermi surface force forward biased free electron free particle frequency given by Eq inside integers ions k-space laser lattice parameter lattice points lattice vector lattice wave magnetic field n-type semiconductor NaCl negative neutrons number of electrons obtain occupied one-dimensional oscillate p-n junction photon positively charged potential energy primitive unit cell Problem rays reciprocal lattice reverse biased sc lattice scattered Schroedinger's equation shown in Fig sodium metal solid structure superconductor temperature tion transistor trons unit cell unoccupied values velocity voltage wave function wave number wave vector wavelength Wigner-Seitz cell wire x-ray diffraction zero