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单词 photoemitting
释义

photoemittingadj.

Brit. /ˌfəʊtəʊᵻˈmɪtɪŋ/, U.S. /ˈˌfoʊdoʊəˈmɪdɪŋ/, /ˈˌfoʊdoʊiˈmɪdɪŋ/
Origin: Formed within English, by compounding. Etymons: photo- comb. form, emitting adj.
Etymology: < photo- comb. form + emitting adj., after photoemission n. Compare photoemissive adj., and also later photoemit v.
Physics.
Exhibiting or characterized by photoemission.
ΘΚΠ
the world > matter > physics > atomic physics > particle physics > particle avoiding strong interaction > electron > [adjective] > relating to photoemission
photoemissive1932
photoemitting1933
photoemitted1970
1933 Jrnl. Inst. Electr. Engineers 73 439/1 The equilibrium potential of the element is defined by (a) the velocity of the [electron] beam and (b) the secondary emission from the photo-emitting substance due to bombardment by the electrons.
1971 F. Graham-Smith & J. H. Thomson Optics xxiii. 333 Semiconductors are widely used as photoemitting surfaces.
2001 Sensors Mag. (Nexis) 1 Mar. 14 The array is then exposed to cesium in a vacuum to create the photoemitting compound.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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adj.1933
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