... The photoelectric effect is one of the physical phenomena that marked the beginning of quantum mechanics, and its discovery has great significance in the history of physics. Historically, it began around 1840 when the Frenchman Alexandre Edmond Becquerel (1820-91) discovered that when a pair of metal electrodes was immersed in a dilute acid solution and light was shone on one of the metal electrodes, the electromotive force generated between the metal electrodes changed. In 1888, WLF Halbachs discovered that when ultraviolet light was shone on the clean surface of an insulated zinc plate, the zinc plate became positively charged, and that a zinc plate that had previously been negatively charged lost its charge when exposed to ultraviolet light. ... *Some of the terminology that mentions "Becquerel, AE" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 光電効果は,量子力学誕生の端緒となった物理現象の一つとして,物理学史上,その発見の意義は大きい。歴史的には,1840年ころフランスのベクレルAlexandre Edmond Becquerel(1820‐91)が,1対の金属電極を酸の希釈溶液中に浸し,金属電極の一方に光を当てると,金属電極間に生ずる起電力が変化することを見いだしたのが始まりである。88年にW.L.F.ハルバックスは,絶縁された亜鉛板の清浄表面に紫外光を当てると,亜鉛板は正に帯電すること,またあらかじめ負に帯電させた亜鉛板は,紫外光照射により電荷を失うことを見いだした。… ※「Becquerel,A.E.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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