ELECTRICAL AND PHOTOVOLTAIC PROPERTIES OF LAYERED COMPOSITE FILMS OF COVALENTLY BONDED GRAPHENE AND SINGLE-WALLED CARBON NANOTUBES Статья Slepchenkov M.M., Mitrofanov V.V., Nefedov I.S., Glukhova O.E. Coatings. MDPI AG. Том 10. 2020.