Consider a 2-dimensional sheet of the dichalcogenide semiconductor, MoSz, with an exciton binding energy (E(1)) of 90 meV. What is the maximum temperature at which you would expect to observe absorption from the first excitonic state as distinct from the band edge absorption?

Consider a 2-dimensional sheet of the dichalcogenide semiconductor, MoSz, with an exciton binding energy (E(1)) of 90 meV. What is the maximum temperature at which you would expect to observe absorption from the first excitonic state as distinct from the band edge absorption?

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter12: The Solid State

Section: Chapter Questions

Problem 9P

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Question

Consider a 2-dimensional sheet of the dichalcogenide semiconductor, MoSz, with an exciton binding
energy [E(1)) of 90 meV. What is the maximum temperature at which you would expect to observe
absorption from the first excitonic state as distinct from the band edge absorption?
1044 K
O 611 K
976 K
248 K
493 K

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