TY - JOUR

T1 - Photoconductivity of Graphene–Titanium Composite

AU - Sorokin, D. V.

AU - Gareev, T. I.

AU - Zaitsev, O. V.

AU - Smovzh, D. V.

N1 - The research was supported by the Russian Science Foundation (grant no. 23-29-10130, https://rscf.ru/project/23-29-10130), and the Ministry of Science and Innovation Policy of the Novosibirsk Region (Agreement no. r-62). Photoconductivity of Graphene–Titanium Composite / D. V. Sorokin, T. I. Gareev, O. V. Zaitsev, D. V. Smovzh // Bulletin of the Russian Academy of Sciences: Physics. – 2025. – Vol. 89, No. 9. – P. 1675-1679. – DOI 10.1134/S1062873825712401.

PY - 2025/10/7

Y1 - 2025/10/7

N2 - The use of graphene in photodetecting devices is an urgent area of modern scientific research due to the unique optical and electrical properties of this material. For example, the absence of a band gap and the linear law of dispersion of free charge carriers makes it possible to register photons in a wide range of wavelengths and with a fast response time of material properties to external electromagnetic radiation. However, due to the low level of incident light absorption, the applicability of graphene devices is limited. As a result, increasing the efficiency of light absorption by graphene is one of the key tasks for the successful introduction of graphene into photodetecting devices. In this paper, a method for increasing the photosensitivity and external quantum efficiency of graphene based on modification of the graphene surface by titanium particles is demonstrated. The modification is carried out by magnetron sputtering, which significantly improves the characteristics of graphene-based photodetection devices.

AB - The use of graphene in photodetecting devices is an urgent area of modern scientific research due to the unique optical and electrical properties of this material. For example, the absence of a band gap and the linear law of dispersion of free charge carriers makes it possible to register photons in a wide range of wavelengths and with a fast response time of material properties to external electromagnetic radiation. However, due to the low level of incident light absorption, the applicability of graphene devices is limited. As a result, increasing the efficiency of light absorption by graphene is one of the key tasks for the successful introduction of graphene into photodetecting devices. In this paper, a method for increasing the photosensitivity and external quantum efficiency of graphene based on modification of the graphene surface by titanium particles is demonstrated. The modification is carried out by magnetron sputtering, which significantly improves the characteristics of graphene-based photodetection devices.

KW - GRAPHENE

KW - PHOTOCONDUCTIVITY

KW - magnetron sputtering

UR - https://www.mendeley.com/catalogue/bd6615dc-6ab6-3a23-934c-a8ffc5205c06/

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105018664597&origin=inward

UR - https://www.elibrary.ru/item.asp?id=83008530

U2 - 10.1134/s1062873825712401

DO - 10.1134/s1062873825712401

M3 - Article

VL - 89

SP - 1675

EP - 1679

JO - Bulletin of the Russian Academy of Sciences: Physics

JF - Bulletin of the Russian Academy of Sciences: Physics

SN - 1062-8738

IS - 9

ER -