| 单词 | luminophore |
| 释义 | luminophore|ˈl(j)uːmɪnəfɔə(r)|
Also -phor.
[f. L. lūmin-, lūmen light + -o + -phore.]
a. A luminescent substance.
1907Jrnl. Chem. Soc. XCII. ii. 419 The addition of sodium or potassium sulphate to the mixture intensified both this green phosphorescence and that due to the luminophore added. 1930Chem. Abstr. XXIV. 785 (heading) Contribution to the preparation of luminophores. 1950H. W. Leverenz Introd. Luminescence of Solids v. 147 Luminescent materials in general (luminophors)..have the additional property of being able to convert part of the absorbed primary energy into emitted luminescence radiations whose spectral characteristics are determined almost entirely by the luminophor. Ibid., The generic term luminophor is subclassified into fluorophors..and phosphors. 1968Proc. Internat. Conf. Luminescence, Budapest 1966 I. 1290 Precipitates of uniform size..are demanded especially by the luminophore industry.
b. A group of atoms in a molecule which is considered to be responsible for its luminescence.
1910Encycl. Brit. X. 72/1 H. Kauffmann..suggested that the property [of fluorescence] is due to the presence of at least two groups. The first group, named the ‘luminophore’, is such that when excited by suitable aetherial vibrations [it] emits radiant energy; the other..acts with the luminophore in some way or other to cause the fluorescence. 1949P. Pringsheim Fluorescence & Phosphorescence v. 392 The strong absorption of visible light which is characteristic of dyes was ascribed to the presence of certain unsaturated groups, such as the azo group {b1} N{b2}N{b1}, the ethylene group {b1}HC{b2}CH{b1}, and the carbonyl group >C{b2}O, which were called chromophors. These chromophors were at first supposed also to be the carriers of fluorescence as ‘luminophors’. |
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