- #1
munna007
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indirect band gap semiconductor doubt
its said that indirect band gap semiconductors like silicon and germanium are not used as a light sources because they have more non-radiative recombinations rather than radiative ,which inturn decreases efficiency of optical source.
but i want to understand how indirect band gap materials produce non-radiative photons.
i have studied many books like keiser , senior on optical fibre .those all are not explanatory on this ...also googled for this ,but not helped from there...
hoping for help here...thanks...love to all...
its said that indirect band gap semiconductors like silicon and germanium are not used as a light sources because they have more non-radiative recombinations rather than radiative ,which inturn decreases efficiency of optical source.
but i want to understand how indirect band gap materials produce non-radiative photons.
i have studied many books like keiser , senior on optical fibre .those all are not explanatory on this ...also googled for this ,but not helped from there...
hoping for help here...thanks...love to all...