题目内容

In Haynes-Shockley experiment, ( ) can be determined from this single experiment.

A. the minority carrier mobility
B. lifetime
C. diffusion coefficient
D. the majority carrier mobility

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In the ambipolar transport, the negatively charged electrons and positively charged holes then have the same effective mobility or diffusion coefficient. ( )

Low-level injection is that the concentration of the incorporated excess carriers is ()than the concentration of the majority carriers in thermal equilibrium.

A. slightlysmaller
B. much smaller
C. much more
D. slightlymore

In nonequilibrium state, excess electrons in the conduction band and excess holes in the valence band are called ______ .

Ambipolar Transport include ( ).

A. excess carriers diffuse
B. excess carriers drift
C. excess carriers recombine
D. excess carriers generate