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・ Caesium cadmium bromide
・ Caesium cadmium chloride
・ Caesium carbonate
・ Caesium chloride
・ Caesium chromate
・ Caesium dodecaborate
・ Caesium fluoride
・ Caesium hexafluorocobaltate(IV)
・ Caesium hexafluorocuprate(IV)
・ Caesium hydride
・ Caesium hydrogen sulfate
・ Caesium hydroxide
・ Caesium iodide
・ Caesium lithium borate
・ Caesium nitrate
Caesium oxide
・ Caesium perchlorate
・ Caesium standard
・ Caesium sulfate
・ Caesium titanate
・ Caesium-137
・ Caesius
・ Caesius Bassus
・ Caesius Nasica
・ Caeso (praenomen)
・ Caeso Fabius Ambustus
・ Caeso Fabius Vibulanus
・ Caeso Fabius Vibulanus (consul)
・ Caeso Quinctius
・ Caesonia (gens)


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Caesium oxide : ウィキペディア英語版
Caesium oxide

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Caesium oxide (IUPAC name) or cesium oxide describes inorganic compounds composed of caesium and oxygen. The following binary (containing only Cs and O) oxides of caesium are known: Cs11O3, Cs4O, Cs7O, and Cs2O.〔.〕 Both the oxide and suboxides are brightly coloured. The species Cs2O forms yellow-orange hexagonal crystals.〔
==Uses==
Caesium oxide is used in photocathodes to detect infrared signals in devices such as image intensifiers, vacuum photodiodes, photomultipliers, and TV camera tubes
L. R. Koller described the first modern photoemissive surface in 1929–30 as a layer of caesium on a layer of caesium oxide on a layer of silver. It is a good electron emitter; however, its high vapor pressure limits its usefulness.

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