Nitrogen-doped graphene quantum dots: Optical properties modification and photovoltaic applications

Electrogenerated Chemiluminescence and Electroluminescence of N‐Doped Graphene Quantum Dots Fabricated from an Electrochemical Exfoliation Process in Nitrogen‐Containing Electrolytes

“…[2,[6][7][8][9][10][11][12] GQDs have av ery high surface area to volume ratio, which allows their surfaces to be readily functionalized with variouso rganic or biological species, further increasing their versatility. [13] Heteroatom doping involves the addition of one or more novel elements into the GQD lattice, permitting the tuning of many physical and structural properties. [14,15] In general, synthesis of GQDs can be classifiedi no ne of two categories:t op-down, where the nano-sized particles are fragmented off of al arger bulk structure;a nd bottom-up, where the GQDs are built up from smaller molecular precursors.…”

“…Due to their tunable photoluminescence, high stability, and low toxicity, GQDs have numerous applications in a wide variety of research areas ranging from bioimaging, sensors, energy storage, photovoltaics, to catalysis [2, 6–12] . GQDs have a very high surface area to volume ratio, which allows their surfaces to be readily functionalized with various organic or biological species, further increasing their versatility [13] . Heteroatom doping involves the addition of one or more novel elements into the GQD lattice, permitting the tuning of many physical and structural properties [14, 15] .…”

CeO2/CuO@N‐GQDs@NH2 nanocomposite as a high‐performance catalyst for the synthesis of benzo[g]chromenes

“…[ 16 ] Metal oxides are a broad class of materials that have been researched extensively owing to their unique attributes and potential applications in various fields. [ 17, 18 ] Graphene quantum dots (GQDs) have received much attention owing to their significant features regarding biological, [ 19 ] biomedical, [ 20 ] drug delivery, [ 21 ] photocatalyst, [ 22 ] surfactant, [ 23 ] bioelectronic, [ 24 ] electrocatalytic, [ 25 ] Li‐ion battery, [ 26 ] solar cell, [ 27 ] photoluminescence [ 28,29 ] and bioimaging properties, [ 30 ] and catalytic activity. [ 31 ] Potential applications of N ‐GQDs have been reviewed on the basis of theoretical and experimental studies.…”

Co3O4/NiO@GQD@SO3H nanocomposite as a superior catalyst for the synthesis of chromenpyrimidines

“…Graphene quantum dots (GQDs) are a new member of the carbon nanostructure family, which have quasi-spherical structures. GQDs have gained intensive attention due to their signicant features, biological, 15 biomedical, 16 and therapeutic applications, 17 as a new class of photocatalysts 18 and surfactants, 19 and electrochemical biosensing, 20 electrocatalytic, 21 lithium battery, 22 optical and photovoltaic, 23 photoluminescence, 24,25 bioimaging, 26 and catalytic applications. 27 The potential applications of N-graphene quantum dots were recently reviewed based on experimental and theoretical studies.…”