Semiconductor LED's have a slow response time and hence a low frequency operation and low band width because: a. their produced photons are mainly due to the diffusion process of the injected carriers b. Their produced photons are due to injected electrons having a low drift velocity only in n-side of the junction O . Their produced photons are due to injected holes having a low drift velocity only in p-side of the junction O d. Their produced photons are due to injected electrons and holes having a low drift velocity due to low biasing voltage.

Semiconductor LED's have a slow response time and hence a low frequency operation and low band width because: a. their produced photons are mainly due to the diffusion process of the injected carriers b. Their produced photons are due to injected electrons having a low drift velocity only in n-side of the junction O . Their produced photons are due to injected holes having a low drift velocity only in p-side of the junction O d. Their produced photons are due to injected electrons and holes having a low drift velocity due to low biasing voltage.

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter10: Atomic Physics

Section: Chapter Questions

Problem 15P

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