Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162427 - 162427
Published: April 1, 2025
Language: Английский
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 23, 2024
Abstract Highly luminescent carbon dots (CDs) have garnered significant attention and are increasingly utilized in various fields. Despite its importance, there has been a lack of comprehensive reviews focusing specifically on highly CDs. It is aimed here to fill that gap by exploring CDs with high photoluminescence quantum yield (PLQY), starting an examination the mechanisms underlying The selection synthetic raw materials preparation methods along research progress reviewed information across bands then statistically summarized several tables. Subsequently, structural features, synthesis methods, purification strategies lead PLQY based analyzing collected examples Furthermore, luminescent‐based multifunctional applications bioimaging, light‐emitting diodes, solar concentrators, lasers introduced. Finally, current landscape evaluated, existing challenges identified, feasible directions proposed for future development.
Language: Английский
Citations
4
Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 113910 - 113910
Published: Jan. 1, 2025
Language: Английский
Citations
0
Small, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 12, 2025
Abstract Developing single‐particle nanocomposite with aqueous‐phase orthogonal multicolor phosphorescence or multimodal luminescence holds great significance for optical coding, anti‐counterfeiting encryption, bioimaging, and biosensing. However, it faces challenges such as a limited range of emission wavelengths difficulties in controlling the synthesis process. In this work, conjugate structure manipulation integrated luminophor confinement strategy is proposed to prepare carbon dots@upconversion nanoparticles (CDs@UCNPs) featuring room‐temperature phosphorescence‐upconversion (RTP‐UCL) through wet‐chemical synthetic methods. Four types CDs are synthesized by introducing molecules varying degrees conjugation, while intersystem crossing process enhanced constructing charge‐transfer states narrow energy gap between excited singlet triplet states. Aqueous‐phase RTP (green, yellow, orange) UCL (blue, green, red) achieved confining different conjugation within NaBiF 4 matrix doped various lanthanide ions. Notably, UCNPs can crystallize at low temperatures, serving immobilize CDs, thereby preventing their vibration rotation, minimizing interference from water oxygen. Additionally, versatility demonstrated CDs@Cs 2 NaGdCl 6 : 5%Yb 3+ ,10%Er perovskite nanocomposites. This offers valuable guidance preparation advanced materials.
Language: Английский
Citations
0
Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137332 - 137332
Published: Jan. 1, 2025
Language: Английский
Citations
0
ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 928 - 937
Published: Feb. 10, 2025
Language: Английский
Citations
0
ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 14, 2025
Language: Английский
Citations
0
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(9), P. 14425 - 14432
Published: Feb. 20, 2025
Room temperature phosphorescence (RTP) materials have attracted considerable attention, because of their outstanding properties and a wide array potential applications. However, achieving control over the emission color RTP still presents certain challenges. In this article, carbon dots (CDs) three distinct colors were synthesized through simple host-guest doping strategy. Blue CDs (B-CDs) obtained by using phenylboronic acid as guest phosphors B2O3 host protect matrix, an ultralong lifetime (up to 1.597 s). Under 254 nm light excitation, blue for 14 s B-CDs can be visually observed. By increasing conjugation degree precursor molecules introducing 4-(1-naphthyl) naphthalene-1-boronic pyren-1-ylboronic phosphors, green (G-CDs) red (R-CDs) obtained, respectively. Theoretical calculations band gap analyses suggest that larger conjugated structures reduce HOMO-LUMO energy level difference, thereby causing redshift in wavelength. Last, these multicolor composite applied information encryption.
Language: Английский
Citations
0
Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 116320 - 116320
Published: Feb. 1, 2025
Language: Английский
Citations
0
Nano Letters, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 28, 2025
Carbon dots (CDs) with circularly polarized long afterglow (CPLA) properties have received increasing attention as a cutting-edge research field. However, because the CDs both and chirality are difficult to prepare color of most phosphorescent is mainly concentrated in short wavelengths, it still formidable challenge explore facile route achieve intrinsic CD-based color-tunable CPLA materials on large scale. Herein, we developed gram-scale synthesis method via simple hydrothermal mixture boric acid, arginine, various fluorescent dyes. The tunable successfully achieved by engineering situ phosphorescence resonance energy transfer (PRET) between formed carbonization arginine some dyes those uncarbonized Finally, applications CD composites multimode advanced anti-counterfeiting information encryption were explored.
Language: Английский
Citations
0
Chemical Science, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Tuning Mn 2+ doping in the novel 1D hybrid metal halide enables afterglow color transitions from yellow-green to yellow, orange, and red, resulting efficient energy transfer stable organic triplet states 4 T 1 level of dopants.
Language: Английский
Citations
0