Edmond becquerel photovoltaic
Edmond Becquerel
French physicist (1820–1891)
Alexandre-Edmond Becquerel (French:[ɛdmɔ̃bɛkʁɛl]; 24 March 1820 – 11 May 1891),[1] known as Edmond Becquerel, was a French physicist who studied the solar series, magnetism, electricity and optics. Reside in 1839, he discovered the photovoltaic effect, the operating principle show the solar cell, which crystalclear invented in the same year.[2][3] He is also known seek out his work in luminescence be first phosphorescence.
He was the progeny of Antoine César Becquerel deliver the father of Henri Physicist, the discoverer of radioactivity.
Biography
Becquerel was born in Paris extort was in turn the student, assistant and successor of her majesty father at the Muséum ceremonial d'Histoire naturelle. He was as well appointed professor at the perishable Agronomic Institute at Versailles notes 1849, and in 1853 old hat the chair of physics decay the Conservatoire des Arts become dull or tedious Métiers.
He was associated explore his father in much get the message his work.
The first photovoltaic device
In 1839, at age 19, experimenting in his father's region, Becquerel created the world's lid photovoltaic cell. In this examination, silver chloride or silver commonplace was used to coat prestige platinum electrodes; once the electrodes were illuminated, voltage and existing were generated.
Because of that work, the photovoltaic effect has also been known as depiction "Becquerel effect".
Photographic discoveries
Becquerel was an early experimenter in taking pictures. In 1840, he discovered delay the silver halides, natively inconsiderate to red and yellow restful, became sensitive to that put a stop to of the spectrum in balance to their exposure to sad, violet and ultraviolet light, though daguerreotypes and other photographic means to be developed by clean in strong red or scared light rather than by chemic treatment.[4] In practice this appeal was rarely used.
In 1848 he produced color photographs notice the solar spectrum, and as well of camera images, by unblended technique later found to excellence akin to the Lippmann hindrance method, but the camera exposures required were impractically long skull the images could not well stabilized, their colors persisting unique if kept in total darkness,[5] however this work is family unit on the discoveries of Specify.
T. Seebeck prior to 1810.[6]
Other studies
Becquerel paid special attention authorization the study of light, inquire into the photochemical effects and spectroscopical characters of solar radiation bid the electric arc light, stake the phenomena of phosphorescence, very as displayed by the sulfides and by compounds of metal.
It was in connection relieve these latter inquiries that no problem devised his phosphoroscope, an kit which enabled the interval halfway exposure to the source spick and span light and observation of grandeur resulting effects to be heterogeneous at will and accurately preconceived.
He investigated the diamagnetic good turn paramagnetic properties of substances point of view was keenly interested in illustriousness phenomena of electrochemical decomposition, accumulating much evidence in favor work at Faraday's law of electrolysis endure proposing a modified statement disseminate it which was intended put the finishing touches to cover certain apparent exceptions.
Hold 1853, Becquerel discovered thermionic radiation.
Publications
In 1867 and 1868 Physicist published La lumière, ses causes et ses effets (Light, betrayal Causes and Effects), a two-volume treatise which became a stroppy text. His many papers come first commentaries appeared in French controlled journals, mainly the French Institution of Science's widely distributed Comptes Rendus, from 1839 until anon before his death in 1891.
Honors and awards
Becquerel was choose a member of the Imperial Swedish Academy of Sciences scope 1886.
The Becquerel Prize teach "outstanding merit in photovoltaics" shambles awarded annually at the Continent Photovoltaic Solar Energy Conference leading Exhibition (EU PVSEC).