A Review on van der Waals Boron Nitride Quantum Dots

Abstract

Boron nitride quantum dots (BNQDs) have gained increasing attention for their versatile fluorescent, optoelectronic, chemical, and biochemical properties. During the past few years, significant progress has been demonstrated, started from theoretical modeling to actual application. Many interesting properties and applications have been reported, such as excitation-dependent emission (and, in some cases, non-excitation dependent), chemical functionalization, bioimaging, phototherapy, photocatalysis, chemical, and biological sensing. An overview of this early-stage research development of BNQDs is presented in this article. We have prepared un-bias assessments on various synthesis methods, property analysis, and applications of BNQDs here, and provided our perspective on the development of these emerging nanomaterials for years to come.

Progress in Electronic, Energy, Biomedical and Environmental Applications of Boron Nitride and MoS2 Nanostructures

“…Therefore, studying the environmental application of nanomaterials and the hot topics in electronics, energy, and biomedicine is equally crucial. We also like to point readers to other review articles on the applications of BN [ 11 , 12 , 13 , 14 ] and MoS 2 [ 15 , 16 , 17 , 18 ] nanostructures. The structural, physical and chemical properties of BN [ 19 , 20 ] and MoS 2 [ 16 , 17 ] are described in prior publications.…”

Silver-Loaded Carbon and Phosphorous Co-Doped Boron Nitride Quantum Dots (Ag@CP-BNQDs) for Efficient Organic Waste Removal: Theoretical and Experimental Investigations

“…Boron nitride quantum dots (BNQDs) are a class of zero-dimension nanoparticles. BNQDs appear in a variety of sizes ranging from 5 to 10 nm. , Jung et al measured the average thickness of the BNQDs to be 3.2 nm, indicating that the BNQDs had a few-layered structure . The ability to exhibit quantum confinement, the functional edge effect, and high water dispersibility provide BNQDs with photoluminescence properties. , …”

Photocontrol of Single-Photon Generation in Boron Nitride Nanoparticles: Implications for Quantum Photon Sources, Sub-Diffraction Nanoscopy, and Bioimaging

“…The bottom-up method is related to the chemical assembly of BN nanoparticles with certain organic or inorganic precursors under specific conditions. Hydrothermal/solvothermal synthesis and microwave-assisted synthesis are the two most common bottom-up methodologies …”

“…In many works, only blue emission (400–450 nm), which occurs because of the quantum confinement effect in ultrafine nanoparticles or quantum dots, is considered . However, for some applications, such as bioimaging, fluorescent nanoparticles emitting in the biological transparency window (650–1000 nm) are most preferable. , The single-photon generation by BNNPs smaller than 10 nm also remains poorly understood. Only a few works are known that demonstrate the stable single-photon emission from BNNPs created by cryogenic exfoliation and hydrothermal synthesis …”

“…Hydrothermal/solvothermal syn- thesis and microwave-assisted synthesis are the two most common bottom-up methodologies. 35 Despite certain success in the development of nanoscale BNNPs synthesis, the mass application of these nanoparticles is limited. In many works, only blue emission (400−450 nm), which occurs because of the quantum confinement effect in ultrafine nanoparticles or quantum dots, is considered.…”