kaz29Вестник Казахстанско-Британского технического университетаHerald of the Kazakh-British Technical University1998-66882959-8109Казахстанско-Британский Технический Университет10.55452/1998-6688-2026-23-1-316-324kaz29-2525Research ArticleФИЗИЧЕСКИЕ НАУКИPHYSICAL SCIENCESВЛИЯНИЕ МЕХАНИЧЕСКОЙ ДЕФОРМАЦИИ НА ЭЛЕКТРИЧЕСКИЕ СВОЙСТВА УГЛЕРОДНЫХ НАНОСТЕНIMPACT OF MECHANICAL DEFORMATION ON THE ELECTRICAL PROPERTIES OF CARBON NANOWALLShttps://orcid.org/0000-0001-6757-1041ЕрланұлыЕ.YerlanulyYe.

PhD

г. Алматы

PhD

Almaty

yerlanuly@physics.kzhttps://orcid.org/0009-0001-7653-8224БаталоваМ.BatalovaM. S.

докторант

г. Алматы

PhD student

Almaty

batmal@yandex.ruИнститут прикладных наук и информационных технологийКазахстанInstitute of Applied Sciences and Information TechnologiesKazakhstan202629032026231316324Copyright © Ерланұлы Е., Баталова М.S., 20262026Ерланұлы Е., Баталова М.Yerlanuly Y., Batalova M.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestnik.kbtu.edu.kz/jour/article/view/2525

Углеродные наностены (УНС) являются перспективными углеродными наноматериалами для гибкой и носимой электроники благодаря их уникальной вертикально ориентированной архитектуре и высокой электропроводности. В данной работе систематически исследовано влияние механической деформации на электрические свойства гибких пленок УНС. УНС были синтезированы методом индуктивно-связанного плазменно-химического осаждения из газовой фазы и перенесены на полимерные подложки для проведения электромеханических испытаний. Измерения методом эффекта Холла показали, что увеличение изгибной деформации и циклической механической нагрузки приводит к постепенному росту поверхностного сопротивления и снижению электропроводности и подвижности носителей заряда, при этом концентрация носителей остается практически неизменной. Сканирующая электронная микроскопия выявила образование микротрещин и частичное нарушение проводящих каналов после многократного изгиба, тогда как общая морфология наностенок в целом сохраняется. Рамановская спектроскопия подтвердила стабильность sp2-углеродного каркаса с увеличением дефектных мод после деформации. Полученные результаты демонстрируют механическую устойчивость УНС и их перспективность для применения в гибких электронных и сенсорных устройствах.

Carbon nanowalls (CNWs) are promising carbon nanomaterials for flexible and wearable electronic applications due to their unique vertically oriented architecture and high electrical conductivity. In this work, the influence of mechanical deformation on the electrical properties of flexible CNW films was systematically investigated. CNWs were synthesized by inductively coupled plasma–enhanced chemical vapor deposition and transferred onto polymer substrates for electromechanical testing. Hall effect measurements revealed that increasing bending strain and cyclic mechanical loading result in a gradual increase in sheet resistance accompanied by a decrease in electrical conductivity and charge carrier mobility, while the carrier concentration remains nearly unchanged. Scanning electron microscopy showed the formation of deformation-induced microcracks and partial disruption of conductive pathways after repeated bending, whereas the overall nanowall morphology was largely preserved. Raman spectroscopy confirmed the stability of the sp2 carbon framework, with an increased defect-related signal after deformation. The strong correlation between electrical, morphological, and spectroscopic results demonstrates that defect accumulation governs the electromechanical response of CNWs. These findings highlight the mechanical robustness of CNWs and their suitability for flexible electronic and sensing devices.

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The authors declare that there are no conflicts of interest present.