P-033

Giedrė Grincienė

giedre.grinciene@ftmc.lt

Renata Karpicz, Katsiaryna Charniakova

Center for Physical Sciences and Technology (FTMC), Vilnius, Lithuania

Synthesis of boron nitride quantum dots (BNQD) via hydrothermal and microwave-assisted methods

Due to their unique properties, boron nitride quantum dots have a wide range of applications in areas such as bioanalysis and medical diagnostics and the production of solar cells, sensors, and photocatalysts. These quantum dots have distinctive photoelectric properties, very good biocompatibility, and are non-toxic. 

Various synthesis techniques are used to obtain boron nitride quantum nanoparticles with the optimal size uniformity. The synthesis typically follows one of two approaches: a bottom-up route, starting from raw materials, or a top-down route, using the exfoliated hexagonal boron nitride nanosheets as a precursor.

This study aimed to compare the particle sizes and fluorescence properties of boron nitride quantum dots synthesized via hydrothermal and microwave-assisted methods and to evaluate the efficiency of these techniques.

Boron nitride quantum dots were synthesized from aqueous solutions of boric acid and urea, with varying reactant concentrations, synthesis time, and temperature, to determine the optimum synthesis conditions for producing uniform quantum dots suitable for fluorescence sensing and bioimaging.