How Does Temperature Affect Semiconductor Energy Gaps?

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Temperature significantly influences the energy gaps in semiconductors, with models like the Linear and Varshni models commonly used to describe this relationship. Additional resources for understanding semiconductor behavior include the book by Sze, which offers comprehensive insights. For a broader perspective, Ashcroft and Mermin's work is also recommended. The discussion emphasizes the importance of these models in predicting how energy gaps change with temperature. Understanding these concepts is crucial for advancements in semiconductor technology.
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THE TEMPERATURE DEPENDENCE OF THE ENERGY GAPS IN SEMICONDUCTORS

Where I can find text about this topic and models that describe this?
I know about Linear and Varshni models, and what about two (or more) other models?
 
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