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Related Concept Videos

P-N junction01:11

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
Voltaic/Galvanic Cells02:47

Voltaic/Galvanic Cells

Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.

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Related Experiment Video

Updated: Jul 12, 2026

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices
11:06

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices

Published on: July 8, 2016

Photovoltaic materials.

E A Perez-Albuerne, Y S Tyan

    Science (New York, N.Y.)
    |May 23, 1980
    PubMed
    Summary

    Solid-state photovoltaic cells convert solar energy to electricity. Advances in materials science are crucial for improving efficiency and enabling widespread solar energy adoption.

    Area of Science:

    • Materials Science
    • Energy Conversion
    • Solid-State Physics

    Background:

    • Solid-state photovoltaic cells offer a direct route for solar energy conversion.
    • Cost reductions are driving industry growth, but efficiency limitations persist.
    • Further materials science and technological advancements are essential for large-scale energy supply.

    Purpose of the Study:

    • To examine energy loss mechanisms in solid-state photovoltaic cells.
    • To correlate these losses with specific material properties.
    • To review emerging photovoltaic systems and identify research opportunities.

    Main Methods:

    • Review of energy loss mechanisms in solid-state photovoltaic devices.
    • Analysis of material properties influencing photovoltaic performance.

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    Published on: March 2, 2021

    Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
    13:29

    Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

    Published on: August 23, 2012

    Related Experiment Videos

    Last Updated: Jul 12, 2026

    Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices
    11:06

    Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices

    Published on: July 8, 2016

    In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation
    06:49

    In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

    Published on: March 2, 2021

    Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
    13:29

    Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

    Published on: August 23, 2012

  • Survey of current and developing photovoltaic systems.

    • Main Results:

    • Identification of key energy loss pathways in photovoltaic cells.
    • Understanding the relationship between material characteristics and energy conversion efficiency.
    • Overview of diverse photovoltaic technologies and their challenges.

    Conclusions:

    • Materials science innovations are critical for overcoming efficiency barriers.
    • Targeted research in specific material areas can significantly advance photovoltaic technology.
    • Photovoltaic cells hold significant promise as a future energy source with continued development.