Cadmium telluride thin-films have a peak recorded efficiency of more than 22.1 percent (the percentage of photons hitting the surface of the cell that are transformed into an electric current). They are less expensive than the more standard silicon thin-film cells. Types of thin-film solar cellsĬadmium telluride thin-film solar cells are the most common type available. Several types of thin-film solar cells are widely used because of their relatively low cost and their efficiency in producing electricity. The technology continuously improved so that in the early 21st century the global thin-film photovoltaic market was growing at an unprecedented rate and was forecast to continue to grow. Thin-film solar cells were originally introduced in the 1970s by researchers at the Institute of Energy Conversion at the University of Delaware in the United States. Thin-film solar cell, type of device that is designed to convert light energy into electrical energy (through the photovoltaic effect) and is composed of micron-thick photon-absorbing material layers deposited over a flexible substrate. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.
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COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.This Time in History In these videos, find out what happened this month (or any month!) in history.
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