Work

Study On The Spectroscopy Properties Of Nitrogen Doped Graphene Quantum Dots And Sulfur - Nitrogen Co-Doped Graphene Quantum Dots

Year: 2026

Type: article

Abstract: In this work, we present a method to fabricate nitrogen-doped Graphene (N-GQDs) and sulfur - nitrogen co-doped graphene quantum dots (S,N-GQDs) and investigate their optical properties. The GQDs are prepared using a microwave-assisted hydrothermal method, which is a simple, environmentally friendly approach that allows for easy dispersion in water and quick application. Structural and morphological analyses reveal that the material has a nanostructure with a size ranging from approximately 4.5 to 9.5 nm and their characteristic bonds are present. The effects of different dopants in GQDs crystal lattice on the optical properties are also systematically analyzed. Additionally, we provide an in-depth discussion of the luminescence mechanism.

Source: VNU Journal of Science Natural Sciences and Technology

DOI: 10.25073/2588-1140/vnunst.5895

Authors: Le Xuan Hung, Pham Thu Nga, Nguyen Thi Mai Huong

Institution: Duy Tan University

Topic: Carbon and Quantum Dots Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

Funder: National Foundation for Science and Technology Development

Award: Chế tạo các chấm lượng tử graphen pha tạp được chức năng hóa và nghiên cứu các tính chất quang và tính chất kháng khuẩn của chúng, nhằm định hướng ứng dụng làm tác nhân chống nhiễm khuẩn trong y-sinh

OpenAlex ID: W7205709659

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