Effect of Electron and Proton Irradiation on Structural and Electronic Properties of Carbon Nanowalls

Yerlanuly Y. Zhumadilov R.Y. Danko I.V. Janseitov D.M. Nemkayeva R.R. Kireyev A.V. Arystan A.B. Akhtanova G. Vollbrecht J. Schopp N. Nurmukhanbetova A. Ramazanov T.S. Jumabekov A.N. Oreshkin P.A. Zholdybayev T.K. Gabdullin M.T. Brus V.V.
27 December 2022 American Chemical Society

ACS Omega
2022 #7 Issue 51 48467 - 48475 pp.

In this work, a complex experimental study of the effect of electron and proton ionizing radiation on the properties of carbon nanowalls (CNWs) is carried out using various state-of-the-art materials characterization techniques. CNW layers on quartz substrates were exposed to 5 MeV electron and 1.8 MeV proton irradiation with accumulated fluences of 7 × 10¹³e/cm²and 10¹²p/cm², respectively. It is found that depending on the type of irradiation (electron or proton), the morphology and structural properties of CNWs change; in particular, the wall density decreases, and the sp²hybridization component increases. The morphological and structural changes in turn lead to changes in the electronic, optical, and electrical characteristics of the material, in particular, change in the work function, improvement in optical transmission, an increase in the surface resistance, and a decrease in the specific conductivity of the CNW films. Lastly, this study highlights the potential of CNWs as nanostructured functional materials for novel high-performance radiation-resistant electronic and optoelectronic devices.

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Kazakh-British Technical University, Almaty, 050000, Kazakhstan
Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Department of Physics, Nazarbayev University, Nur-Sultan City, 010000, Kazakhstan
Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Institut für Solarenergieforschung GmbH, Emmerthal, 31860, Germany
University of California Santa Barbara, Santa Barbara, 93106, CA, United States
Energetic Cosmos Laboratory, Nazarbayev University, Nur-Sultan City, 010000, Kazakhstan

Kazakh-British Technical University
Al-Farabi Kazakh National University
Department of Physics
Institute of Nuclear Physics
Institut für Solarenergieforschung GmbH
University of California Santa Barbara
Energetic Cosmos Laboratory

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