lecture 4 - (4): Solar Cell Efficiency Explained | Spectral and Theoretical Efficiency Breakdown

Description: What limits the efficiency of solar cells, and how close are we to reaching the theoretical maximum? In this video, we take a deep dive into solar cell efficiency, focusing on two critical aspects: Spectral Efficiency and Theoretical Efficiency.

Spectral Efficiency: Learn how different wavelengths of sunlight (across the solar spectrum) impact the performance of solar cells. We'll explore why some wavelengths are more easily absorbed while others result in transmission or reflection losses, and how technologies like multi-junction cells can help capture a broader range of the spectrum.

Theoretical Efficiency: We'll also discuss how real-world solar cells compare to these theoretical limits