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单词 photocurrent
释义

photocurrentn.

Brit. /ˈfəʊtə(ʊ)ˌkʌrənt/, /ˈfəʊtə(ʊ)ˌkʌrn̩t/, U.S. /ˈfoʊdoʊˌkər(ə)nt/
Origin: Formed within English, by compounding. Etymons: photo- comb. form, current n.
Etymology: < photo- comb. form + current n.
Physics.
An electric current induced by illumination.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > [noun] > electricity produced by light
photoelectricity1877
photoelectric effect1892
photocurrent1913
1913 H. S. Allen Photo-electricity x. 127 The proportionality factor between light absorption and photocurrent is only independent of the angle of incidence ϕ for an electric vector..vibrating at right angles to the plane of incidence.
1948 G. C. Higgins & T. H. James Fund. Photogr. Theory iii. 37 Under constant illumination, the photocurrent increases at first as the applied potential is increased and then approaches a maximum.
1974 Nature 26 Apr. 804/1 Light-induced release of protons might thus provide an alternative mechanism for generation of the photocurrents.
1992 Microelectronics Jrnl. 23 514/1 The two branches on the left-hand side of Fig. 3 provide the switching gate function for the positive output current which is produced by photocurrents and neuron currents of the same sign.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1913
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