| 单词 | excitonic |
| 释义 | > as lemmasˌexciˈtonic ˌexciˈtonic adj. of or relating to an exciton; of the nature of an exciton. ΚΠ 1956 Jrnl. Physics & Chem. Solids 1 19/2 Optical excitation of the excitonic energy levels is presumably observable experimentally. 1966 New Scientist 27 Oct. 175/1 Known as the excitonic molecule, this stable entity is built up of two electrons and two ‘holes’. 2009 Proc. National Acad. Sci. U.S.A. 106 12313/1 Because excitonic interactions lead to lower state energies, evidence for their presence is typically provided by the occurrence of red-shifted absorption bands. < as lemmas |
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