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Complete lectures (20 videos, 60-75 min. each) plus two student project presentation sessions.

Fundamentals of Photovoltaics MIT

    • Technologie

Complete lectures (20 videos, 60-75 min. each) plus two student project presentation sessions.

    • video
    Tutorial: Texturing

    Tutorial: Texturing

    This video shows how solar cell efficiency is improved by wet etching the silicon wafer surface into microscopic "pyramids," so that more incident light is trapped within in the cell rather than reflected back into the air.

    • 7 min.
    • video
    Tutorial: Doping

    Tutorial: Doping

    Pure silicon has very low conductivity. This tutorial explains how "doping," the addition of very small amounts of elements like P and B to the Si material, create mobile charges that dramatically boost the material's conductivity.

    • 7 min.
    • video
    Tutorial: Photoconductivity

    Tutorial: Photoconductivity

    This video describes how light shining on a Si semiconductor causes its conductivity to rise, by photon energy breaking covalent bonds, creating mobile electrons and holes.

    • 3 min.
    • video
    Tutorial: Solar Cell Operation

    Tutorial: Solar Cell Operation

    This video summarizes how a solar cell turns light-generated mobile charges into electricity, highlighting the cell's physical structure with layers with different dopants, and the roles of electric fields and diffusion of holes and electrons.

    • 5 min.
    • video
    Lecture 1: Introduction

    Lecture 1: Introduction

    After a brief overview of course structure and objectives, this lecture introduces solar energy as a good match for world energy demand. A history of photovoltaics, survey of key technologies, and photovoltaic device fundamentals complete the session.

    • 4 sec.
    • video
    Lecture 2: The Solar Resource

    Lecture 2: The Solar Resource

    This lecture explores factors that affect the amount of sunlight reaching Earth's surface: e.g. orbit and tilt, scattering in the atmosphere, weather, and diffuse vs. direct sunlight.

    • 4 sec.

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