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Fundamentals of Photovoltaics

Fundamentals of Photovoltaics

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Lecture 17: Modules, Systems, and Reliability

This lecture covers many practical aspects of PV manufacturing, testing, system design and real-world deployment.

1hr 12mins

30 Jun 2015

Rank #1

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Lecture 14: PV Efficiency: Measurement and Theoretical Limits

This lecture examines the practical realization and theoretical limits of solar cell efficiency, with a closer look at solar simulators, making measurements, and material and device-based sources of efficiency loss.

53mins

30 Jun 2015

Rank #2

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Lecture 12: Thin Films: Material Choices & Manufacturing, Part I

This lecture introduces thin film solar technologies: generic advantages and disadvantages, device structures and performance, fabrication by vapor deposition, and market issues. The lecture ends with with a look at cadmium telluride (CdTe).

1hr 9mins

30 Jun 2015

Rank #3

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Lecture 9: Charge Extraction

This lecture begins with the purpose of contacts, common types, and the impact of good and poor contact on IV characteristics. Compares Schottky and Ohmic contacts, the role of surface states, and ends with a brief look at heterojunctions.

1hr 14mins

30 Jun 2015

Rank #4

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Lecture 3: Light Absorption and Optical Losses

This lecture describes the efficiency of a solar device, from input to output. Topics include: Snell's law, how light interacts with matter, and key methods used to improve optical absorption, including texturization and anti-reflection coating.

1hr 12mins

30 Jun 2015

Rank #5

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Lecture 4: Charge Excitation

This lecture describes how semiconductors respond to optical charge excitation, and looks closely at the role of the band gap in determining maximum efficiency.

1hr 12mins

30 Jun 2015

Rank #6

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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.

1hr 6mins

30 Jun 2015

Rank #7

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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.

1hr 15mins

30 Jun 2015

Rank #8

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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.

5mins

26 Jun 2015

Rank #9

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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.

7mins

26 Jun 2015

Rank #10