Fabrication and electrical, electrochemical characteristics of copper chloride-doped graphene films

Authors

  • Thi Thanh Cao
  • Nguyen Duc Duoc Phan
  • Thi Huyen Nguyen, Van Trinh Pham
  • Duy Long Nguyen
  • Tuan Anh Cao
  • Xuan Nghia Nguyen
  • Dai Lam Tran
  • Ngoc Minh Phan
  • Elena D. Obraztsova
  • Van Chuc Nguyen*

Keywords:

CuCl-doped graphene film, electrical, electrochemical.

Abstract

In this study, the thin films of graphene (Gr) doped with copper (I) chloride (CuCl) were fabricated on a
copper (Cu) substrate by chemical vapour deposition method at 1000oC in a mixture of gases (Ar, H2
, and CH4) combined with annealing method at 220oC to vapourise CuCl powder. The morphology, structure,
electrical, and electrochemical characteristics of the CuCl-doped Gr films (CuCl-Gr) were investigated via
field emission scanning electron microscopy (FESEM), Raman spectroscopy, four-probe method and cyclic
voltammetry. The results of Raman spectroscopy showed that there is a shift of the characteristic peaks (D, G
and 2D) toward higher frequencies of the CuCl-Gr film compared to the pristine Gr film. The surface resistance
measurement results exhibited that the CuCl-Gr film has a surface resistance of about 452 ohm/square (Ω/□),
2.02 times lower than that of the Gr film (913 Ω/□). The electrochemical characteristic measurement results in 3 mM Fe(CN)63-/4- with 0.1 M PBS proved that the peak response current of the gold electrode (AuE) coated with CuCl-Gr film is 21.2 µA, 1.6 times higher than that of the AuE coated with Gr. These research results showed a great potential of using CuCl-Gr film to cover the surface of working electrodes in increasing the conductivity and sensitivity of electrochemical sensors.

DOI:

https://doi.org/10.31276/VJST.65(3).07-11

Classification number

1.3

Author Biographies

Thi Thanh Cao

Institute of Materials Science, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Nghia Do Ward, Cau Giay District, Hanoi, Vietnam

Nguyen Duc Duoc Phan

Nha Trang University, 2 Nguyen Dinh Chieu Street, Vinh Tho Ward, Nha Trang City, Khanh Hoa Province, Vietnam

Thi Huyen Nguyen, Van Trinh Pham

Institute of Materials Science, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Nghia Do Ward, Cau Giay District, Hanoi, Vietnam

Duy Long Nguyen

University of Engineering and Technology, Vietnam National University - Hanoi, 144 Xuan Thuy Street, Dich Vong Hau Ward, Cau Giay District, Hanoi, Vietnam

Tuan Anh Cao

Tan Trao University, Km 6, Trung Mon Commune, Yen Son District, Tuyen Quang Province, Vietnam

Xuan Nghia Nguyen

Institute of Physics, VAST, 10 Dao Tan Street, Cong Vi Ward, Ba Dinh District, Hanoi, Vietnam

Dai Lam Tran

Institute of Tropical Technology, VAST, 18 Hoang Quoc Viet Street, Nghia Do Ward, Cau Giay District, Hanoi, Vietnam

Ngoc Minh Phan

Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet Street, Nghia Do Ward, Cau Giay District, Hanoi, Vietnam

Elena D. Obraztsova

A.M. Prokhorov General Physics Institute, Russia

Van Chuc Nguyen*

Institute of Materials Science, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Nghia Do Ward, Cau Giay District, Hanoi, Vietnam

Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet Street, Nghia Do Ward, Cau Giay District, Hanoi, Vietnam

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Published

2023-03-25

Received 8 October 2021; accepted 5 November 2021

How to Cite

Cao Thi Thanh, Phan Nguyen Duc Duoc, Nguyen Thi Huyen, Pham Van Trinh, Nguyen Duy Long, Cao Tuan Anh, Nguyen Xuan Nghia, Tran Dai Lam, Phan Ngoc Minh, Elena D. Obraztsova, & Nguyen Van Chuc*. (2023). Fabrication and electrical, electrochemical characteristics of copper chloride-doped graphene films. Version B of Vietnam Journal of Science and Technology, 65(3). https://doi.org/10.31276/VJST.65(3).07-11

Issue

Vol. 65 No. 3 (2023): Volume 65 - Number 3 - March 2023

Section

Natural Sciences

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