Visualization of graphene grain boundaries through oxygen intercalation

Kirill A. Bokai, Viktor O. Shevelev, Dmitry Marchenko, Anna A. Makarova, Vladimir Yu Mikhailovskii, Alexei A. Zakharov, Oleg Yu Vilkov, Maxim Krivenkov, Denis V. Vyalikh, Dmitry Yu Usachov

Результат исследований: Научные публикации в периодических изданияхстатьярецензирование

1 Цитирования (Scopus)

Аннотация

Efficient control over the grain boundaries (GBs) is a vital aspect in optimizing the graphene growth conditions. A number of methods for visualization of GBs were developed for graphene grown on weakly interacting surfaces. Here, we utilize oxygen intercalation to reveal GBs and study their morphology for graphene strongly bound to the cobalt surface. We demonstrate that upon the intercalation of oxygen, GBs in polycrystalline graphene become easily detectable due to graphene cracking and selective oxidation of the substrate, thus giving a direct insight into the graphene micro- and nanostructure by means of different electron microscopy methods, including scanning electron microscopy, photoemission microscopy and low-energy electron microscopy.

Язык оригиналаанглийский
Номер статьи150476
ЖурналApplied Surface Science
Том565
DOI
СостояниеОпубликовано - 1 ноя 2021

Предметные области Scopus

  • Физика и астрономия (все)
  • Поверхности и интерфейсы
  • Физика конденсатов
  • Поверхности, слои и пленки
  • Химия (все)

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