:I can't comment on aerogels in detail, but I don't think they exhibit any photovoltaic effect, which would rule out the relatively efficient optical-to-electrical energy conversion mechanism used by cheap silicon solar cells.
32.
The first demonstration of the photovoltaic effect in 1839 used an electrochemical cell, but the most familiar form of the photovoltaic effect in modern times though is in solid-state devices, mainly in photodiodes.
33.
The photovoltaic effect was first observed by Alexandre-Edmond Becquerel in 1839 . The term photovoltaic denotes the unbiased operating mode of a photodiode in which current through the device is entirely due to the transduced light energy.
34.
A "'solar cell "', or "'photovoltaic cell "'( previously termed " solar battery " ), is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a chemical phenomenon.
35.
The photovoltaic effect is different in that the generated electrons are transferred between different bands ( i . e ., from the valence to conduction bands ) within the material, resulting in the buildup of a voltage between two electrodes.
36.
And there are processes in which radiation is absorbed and its energy is converted into a different form-see pair production, photoelectrochemical processes, photosynthesis, photoelectric effect, photovoltaic effect, concentrated solar power . talk ) 10 : 18, 9 June 2012 ( UTC)
37.
An "'organic solar cell "'or "'plastic solar cell "'is a type of photovoltaic that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, for light absorption and charge transport to produce electricity from sunlight by the photovoltaic effect.
38.
The main distinction is that the term " photoelectric effect " is now usually used when the electron is ejected out of the material ( usually into a vacuum ) and " photovoltaic effect " used when the excited charge carrier is still contained within the material.
39.
In 1958 the photovoltaic effect or the creation of voltage of a cell based on magnesium phthalocyanine ( MgPc ) a macrocyclic compound having an alternating nitrogen atom-carbon atom ring structure was discovered to have a photovoltage of 200 mV . An Al / MgPc / Ag cell obtained photovoltaic efficiency of 0.01 % under illumination at 690 nm.
40.
The Concise Dictionary of Physics under the heading, " Photoelectric Cells ", differentiates between " the original photocells " ( which utilized photoemission form a photosensitive surface and their attraction by the anode ) and " the more modern photocells which utilize the photoconductive and photovoltaic effect " ( " The Concise Dictionary of Physics ", Oxford, 1985 ) . }}
