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What Are Photocells Made of?
When light shines on an object, the energy in the light stirs up the atoms in the material. In a few substances, the electrons in the atoms move enough to generate a measurable electrical current; in others, it changes the electrical... More »
Source: www.ehow.com

Photoresistor - Wikipedia

en.wikipedia.org/wiki/Photoresistor

A photoresistor is a light-controlled variable resistor. The resistance of a photoresistor ... A photoresistor is made of a high resistance semiconductor. In the dark, a photoresistor ... Large CdS ...

What Are Photocells Made of? | eHow

www.ehow.com/info_10045542_photocells-made-of.html

... the electrical resistance. Practical photocells are made of these substances, including the elements... ... Most solar panels are made of the element silicon.

BBC - GCSE Bitesize: Photocells

www.bbc.co.uk/schools/gcsebitesize/science/ocr_gateway_pre_2011/living_future/1_collecting_energy1.shtml

A secondary school revision resource for OCR GCSE Science about living for the future and collecting energy from the sun.

How do photoelectric cells work? - Explain that Stuff

www.explainthatstuff.com/how-photoelectric-cells-work.html

Nov 29, 2016 ... Photo: A solar panel made from photovoltaic cells. ... detects how much light is reflected back with a photocell, and then sifts the pupa into one ...

Photocell | Define Photocell at Dictionary.com

www.dictionary.com/browse/photocell

Photocell definition, a solid-state device that converts light into electrical energy by producing a voltage, as in a photovoltaic cell, or uses light to regulate the flow  ...

How does a photocell work? | Reference.com

www.reference.com/science/photocell-work-c32e7061fe01f359

A photocell is made up of a semiconductor, the working of which is dependent on the intensity of incident light. When the amount of light exceeds a certain ...

Simple Homemade Photocell. - SparkBangBuzz

www.sparkbangbuzz.com/els/photocell-el.htm

Sep 12, 2003 ... This is a copper oxide photocell and is very simple to make using materials ... One photocell that I made could give a whopping 50 mv increase ...

Solar cells - The Creative Science Centre - by Dr Jonathan P. Hare

www.creative-science.org.uk/solarcells.html

Solar cells can be made very thin and flexible and have even been fabricated into clothes and tent ... Photo cells are useful for light meters and light switches.