Consider a potential energy barrier like that of Fig. 38-15 but whose height U0 is 5.4 eV and whose thickness L is 0.73 nm. What is the energy of an incident electron whose transmission coefficient is 0.0017?(adsbygoogle = window.adsbygoogle || []).push({});

I tried to solve the problem my self but could not get the right answer still having trouble with this question please let me help with this my answer is .203 but not right if some one help me out with this questino and tell me the answer would appriciate that !!! thank you very one here are the hint !

The transimission coefficient for a barrier of height U0 and width L is given by

T = e-2bL ............1

Where b = v (8p2m(U0 - E ) / h2 ) ............2

Substituting values in equation (1) we get b

Then substitute b in equation (2) we get E

Givem that U0 = 5.4 eV

m = mass of electron

L = 0.73 nm

T = 0.0017

I hope this may help you.

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