Lecture

Optics: Electronic Materials

Description

This lecture covers the optical properties of large area electronic materials, focusing on band diagrams, band gaps, absorption coefficients, and disorder effects in materials like c-Si and a-Si. It discusses the formation of band gaps, absorption below the gap, sub-gap absorption, and temperature dependence of absorption. The lecture also explores the concepts of Urbach absorption, hopping conductivity, extended state conductivity, activation energy, drift mobility, and thermally activated drift mobility in materials like a-Si and a-Si:H.

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