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Ionization and electron excitation of C60 in a carbon nanotube: A variable temperature/voltage transmission electron microscopic study

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Title
Ionization and electron excitation of C60 in a carbon nanotube: A variable temperature/voltage transmission electron microscopic study
Author(s)
Dongxin Liu; Satori Kowashi; Takayuki Nakamuro; Dominik Lungerich; Kaoru Yamanouchi; Koji Harano; Eiichi Nakamura
Publication Date
2022-04
Journal
Proceedings of the National Academy of Sciences of the United States of America, v.119, no.15
Publisher
NLM (Medline)
Abstract
SignificanceThe destruction of specimen molecules by an electron beam (e-beam) is either beneficial, as in mass spectrometry capitalizing on ion formation, or deleterious, as in electron microscopy. In the latter application, the e-beam not only produces the specimen image, but also causes information loss upon prolonged irradiation. However, the atomistic mechanism of such loss has been unclear. Performing single-molecule kinetic analysis of C60 dimerization in a carbon nanotube (CNT) under variable-temperature/voltage conditions, we identified three reactive species-that is, radical cation, singlet, and triplet excited states-reacting competitively as the voltage and the properties of the CNT were changed. The key enabler was in situ continuous recording of the whole reaction process, suggesting an upcoming new era of "cinematic chemistry."
URI
https://pr.ibs.re.kr/handle/8788114/11445
DOI
10.1073/pnas.2200290119
ISSN
0027-8424
Appears in Collections:
Center for Nanomedicine (나노의학 연구단) > 1. Journal Papers (저널논문)
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