Smart Electronic Materials: Fundamentals and Applications

Appendix A: Important Properties of Semiconductors

OVERVIEW

The data and plots shown in this Appendix are extracted from a number of sources. A list of useful sources is given below.

  • S.Adachi, J. Appl Phys. , 58, R1 (1985).

  • H.C.Casey, Jr. and M.B.Panish, Heterostructure Lasers , Part A, Fundamental Principles; Part B, Materials and Operating Characteristics, Academic Press, New York (1978).

  • Landolt-Bornstein, Numerical Data and Functional Relationship in Science and Technology , Vol. 22, Eds. O.Madelung, M.Schulz, and H.Weiss, Springer Verlag, New York (1987).

  • S.M.Sze, Physics of Semiconductor Devices , J.Wiley, New York (1981). This is an excellent source of a variety of useful information on semiconductors.


Figure A.1: Lattice constants and bandgaps of semiconductors at room temperature.
Table A.1: Electron and hole masses for several semiconductors. Some uncertainty remains in the value of hole masses for many semiconductors.

Material

Electron Mass

( m 0)

Hole Mass

( m 0)

AlAs

0.1

AlSb

0.12

m dos=0.98

GaN

0.19

m dos=0.60

GaP

0.82

m dos=0.60

GaAs

0.067

m lh=0.082

m hh=0.45

GaSb

0.042

m dos=0.40

Ge

m l=1.64

m t=0.082

m lh=0.044

m hh=0.28

InP

0.073

m dos=0.64

InAs

0.027

m dos=0.4

InSb

0.13

m dos=0.4

Si

m l=0.98

m t=0.19

m lh=0.16

m hh=0.49

Table A.2: Compositional dependence of the energy gaps of the binary III V ternary alloys at 300 K. (After Casey and Panish (1978).)

Compound

Direct Energy Gap E g(eV)

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