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Article

Boron-Doped Reduced Graphene Oxide with Tunable Bandgap and Enhanced Surface Plasmon Resonance

by
Muhammad Junaid
1,2,*,
M. H. Md Khir
1,*,
Gunawan Witjaksono
3,
Nelson Tansu
4,
Mohamed Shuaib Mohamed Saheed
5,
Pradeep Kumar
1,
Zaka Ullah
1,*,
Asfand Yar
6 and
Fahad Usman
6
1
Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
2
Department of Electronic Engineering, Balochistan University of Information Technology, Engineering, and Management Sciences, Quetta 87300, Balochistan, Pakistan
3
BRI Institute, Jl. Harsono RM No.2, Ragunan, Passsar Minggu, Jakarta 12550, Indonesia
4
Center for Photonics and Nanoelectronics, Department of Electrical and Computer Engineering, Lehigh University, 7 Asa Drive, Bethlehem, PA 18015, USA
5
Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
6
Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
*
Authors to whom correspondence should be addressed.
Molecules 2020, 25(16), 3646; https://doi.org/10.3390/molecules25163646
Submission received: 10 June 2020 / Revised: 26 June 2020 / Accepted: 30 June 2020 / Published: 11 August 2020
(This article belongs to the Special Issue Hybrid Materials for Advanced Applications)
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Abstract

Graphene and its hybrids are being employed as potential materials in light-sensing devices due to their high optical and electronic properties. However, the absence of a bandgap in graphene limits the realization of devices with high performance. In this work, a boron-doped reduced graphene oxide (B-rGO) is proposed to overcome the above problems. Boron doping enhances the conductivity of graphene oxide and creates several defect sites during the reduction process, which can play a vital role in achieving high-sensing performance of light-sensing devices. Initially, the B-rGO is synthesized using a modified microwave-assisted hydrothermal method and later analyzed using standard FESEM, FTIR, XPS, Raman, and XRD techniques. The content of boron in doped rGO was found to be 6.51 at.%. The B-rGO showed a tunable optical bandgap from 2.91 to 3.05 eV in the visible spectrum with an electrical conductivity of 0.816 S/cm. The optical constants obtained from UV-Vis absorption spectra suggested an enhanced surface plasmon resonance (SPR) response for B-rGO in the theoretical study, which was further verified by experimental investigations. The B-rGO with tunable bandgap and enhanced SPR could open up the solution for future high-performance optoelectronic and sensing applications.
Keywords: graphene oxide; microwave; hydrothermal; boron-doped reduced graphene oxide; oxygen reduction reaction; optical bandgap; surface plasmons resonance graphene oxide; microwave; hydrothermal; boron-doped reduced graphene oxide; oxygen reduction reaction; optical bandgap; surface plasmons resonance

Share and Cite

MDPI and ACS Style

Junaid, M.; Khir, M.H.M.; Witjaksono, G.; Tansu, N.; Saheed, M.S.M.; Kumar, P.; Ullah, Z.; Yar, A.; Usman, F. Boron-Doped Reduced Graphene Oxide with Tunable Bandgap and Enhanced Surface Plasmon Resonance. Molecules 2020, 25, 3646. https://doi.org/10.3390/molecules25163646

AMA Style

Junaid M, Khir MHM, Witjaksono G, Tansu N, Saheed MSM, Kumar P, Ullah Z, Yar A, Usman F. Boron-Doped Reduced Graphene Oxide with Tunable Bandgap and Enhanced Surface Plasmon Resonance. Molecules. 2020; 25(16):3646. https://doi.org/10.3390/molecules25163646

Chicago/Turabian Style

Junaid, Muhammad, M. H. Md Khir, Gunawan Witjaksono, Nelson Tansu, Mohamed Shuaib Mohamed Saheed, Pradeep Kumar, Zaka Ullah, Asfand Yar, and Fahad Usman. 2020. "Boron-Doped Reduced Graphene Oxide with Tunable Bandgap and Enhanced Surface Plasmon Resonance" Molecules 25, no. 16: 3646. https://doi.org/10.3390/molecules25163646

APA Style

Junaid, M., Khir, M. H. M., Witjaksono, G., Tansu, N., Saheed, M. S. M., Kumar, P., Ullah, Z., Yar, A., & Usman, F. (2020). Boron-Doped Reduced Graphene Oxide with Tunable Bandgap and Enhanced Surface Plasmon Resonance. Molecules, 25(16), 3646. https://doi.org/10.3390/molecules25163646

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