A course in Si solar cell design

The solar spectrum

The solar constant

The extraterrestrial (am0) solar spectrum

Intensity or photon flux?

There are lots of photons in the infrared

Comparison with the blackbody radiation - Planck's law

Why is there a standard am0 spectrum necessary?

Influences of the earth atmosphere on the solar spectrum

Two mechanisms for atmospheric absorption of sunlight

Atmospheric absorption - an overview

Scattering of sunlight in the atmosphere

Albedo

The reflectance of the ground

The air mass (am)

Variability of the terrestrial spectrum

The global (am1.5g) standard spectrum

The direct (am1.5d) standard spectrum

The software SMARTS

Calculations of the solar spectrum with SMARTS

A mind-map of this lecture