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Carbon nanotube electron blackbody and its radiation spectra.

ABSTRACT: An optical blackbody is an ideal absorber for all incident optical radiation, and the theoretical study of its radiation spectra paved the way for quantum mechanics (Planck's law). Herein, we propose the concept of an electron blackbody, which is a perfect electron absorber as well as an electron emitter with standard energy spectra at different temperatures. Vertically aligned carbon nanotube arrays are electron blackbodies with an electron absorption coefficient of 0.95 for incident energy ranging from 1 keV to 20 keV and standard electron emission spectra that fit well with the free electron gas model. Such a concept might also be generalized to blackbodies for extreme ultraviolet, X-ray, and γ-ray photons as well as neutrons, protons, and other elementary particles.

SUBMITTER: Zhang K

PROVIDER: S-EPMC9963611 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

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Carbon nanotube electron blackbody and its radiation spectra.

Zhang Ke K Chen Guo G Zhou Shaohua S Yuan Zi Z Gu Xu X Zhou Duanliang D Wang Yuan Y Gao Xinyu X Ma Yucheng Y Xu Runzhe R Bai Zaiqiao Z Liu Peng P Yang Lexian L Zhou Shuyun S Fan Shoushan S Jiang Kaili K

Proceedings of the National Academy of Sciences of the United States of America 20230131 6

An optical blackbody is an ideal absorber for all incident optical radiation, and the theoretical study of its radiation spectra paved the way for quantum mechanics (Planck's law). Herein, we propose the concept of an electron blackbody, which is a perfect electron absorber as well as an electron emitter with standard energy spectra at different temperatures. Vertically aligned carbon nanotube arrays are electron blackbodies with an electron absorption coefficient of 0.95 for incident energy ran ...[more]

PMID: 36719922

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