Matter, Journal Year: 2025, Volume and Issue: 8(5), P. 102077 - 102077
Published: May 1, 2025
Language: Английский
Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 529, P. 216457 - 216457
Published: Jan. 21, 2025
Language: Английский
Citations
6
Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120122 - 120122
Published: Feb. 1, 2025
Language: Английский
Citations
2
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 10, 2025
Abstract The properties of higher triplet excited states (T n , ≥ 2) are essential for deep understanding state dynamics, but direct observation T phosphorescence remains rare, let alone systematic studies behaviors based on well‐designed luminescence molecules. Recently, a serendipitous finding (n afterglow (phosphorescence lifetime > 0.1 s) in benzophenone‐containing difluoroboron β‐diketonate (BPBF 2 ) system is communicated. Here Cl/Br/I atoms covalently incorporated into BPBF molecules and report the first study heavy atom effect (HAE) afterglow. It known that HAE has been widely reported thoroughly studied 1 systems, which shows Br usually optimized selection balancing efficiency lifetime. In contrast, covalent linkage to found dramatically suppress experimental emission intensity(T )/intensity(T ratios positively correlated with k IC −T )/ × P ), where refer rates calculated internal conversion emission. These fundamental would be helpful elucidating panorama Perrin‐Jablonski diagram organic systems provide intriguing materials future applications.
Language: Английский
Citations
1
The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: 16(9), P. 2151 - 2159
Published: Feb. 20, 2025
Endogenous derivatives, inevitably introduced during carbonized polymer dots (CPDs) synthesis, are considered to significantly influence their sensing performance. In this study, comparative studies on CPDs prepared via hydrothermal methods (CPDs-H2O) and airflow-assisted melt polymerization (CPDs-AMP) reveal that CPDs-H2O, containing abundant exhibit superior stability robustness in Fe3+ both solution cells compared derivative-deficient CPDs-AMP. Mechanistic investigations highlight the crucial role of endogenous derivatives enhancing intrinsic frameworks, challenging conventional perceptions providing valuable insights for designing robust CPDs-based sensors practical applications.
Language: Английский
Citations
1
Colloids and Surfaces B Biointerfaces, Journal Year: 2024, Volume and Issue: 245, P. 114360 - 114360
Published: Nov. 5, 2024
Language: Английский
Citations
7
Micro, Journal Year: 2025, Volume and Issue: 5(1), P. 14 - 14
Published: March 17, 2025
Carbon dots (CDots) are classically defined as small carbon nanoparticles with effective surface passivation, which, in the classical synthesis, has been accomplished by organic functionalization. CDot-like nanostructures could also be produced thermal carbonization processing of selected precursors, which non-molecular nanocarbons resulting from embedded remaining species, may provide passivation function for nanocarbons. In this work, a mixture oligomeric polyethylenimine and citric acid solid state was used efficient microwave irradiation under various conditions to produce dot samples different nanocarbon content. The were characterized terms their structural morphological features regarding similarity or equivalency those CDots, along significant divergences. Also evaluated optical spectroscopic properties photoinduced antimicrobial activity against bacterial species. advantages disadvantages method mimicking synthesized CDots discussed.
Language: Английский
Citations
1
Aggregate, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 28, 2024
ABSTRACT Carbon quantum dots (CQDs) represent a rapidly emerging class of nanomaterials with significant potential in biomedical applications due to their tunable fluorescence, high biocompatibility, and versatile functionalization. This review focuses on the recent progress utilizing CQDs for drug delivery, bioimaging, biosensing, cancer therapy. With unique optical properties, such as yield, photostability, enable precise bioimaging sensitive biosensing. Their small size, ease surface functionalization allow development targeted delivery systems, enhancing therapeutic precision minimizing side effects. In therapy, have shown photodynamic photothermal treatments by generating reactive oxygen species under light exposure, selectively targeting cells while sparing healthy tissues. Furthermore, CQDs’ ability penetrate biological barriers including blood–brain barrier opens new possibilities delivering agents hard‐to‐reach areas, tumors or diseased However, challenges optimizing synthesis, ensuring long‐term stability, addressing safety concerns environments remain critical hurdles. discusses current efforts overcome these improve CQD performance clinical settings, scalable production methods enhanced biocompatibility. As research progresses, are expected play an important role improving healthcare offering more treatment options contributing advancements personalized medicine.
Language: Английский
Citations
3
Nano Letters, Journal Year: 2025, Volume and Issue: 25(6), P. 2554 - 2560
Published: Jan. 31, 2025
Organic carbon dots (CDs) exhibit tunable electronic structures and exceptional optical properties, supporting both exciton- charge-driven applications. However, the mechanisms underlying this dual functionality are poorly understood. This study establishes role of size inhomogeneity in exciton dissociation for first time. Two distinct CD types were identified, each class with a deviation. Intradot relaxation within same type CDs composes fast (∼1 ps) slow (∼tens picoseconds) component among size-deviated subpopulations. Interdot transfer between two occurs time scale 4.4 ps but is evident only when higher-energy states excited. It also facilitates dissociation, generating nearly free carriers, confirmed by EPR spectra (g-value = 2.005). These findings highlight critical energy level alignment selective excitation mediating providing key insights optimizing light emission conversion
Language: Английский
Citations
0
Nanoscale, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
This article reviews the functions of drug-derived CDs compared with their precursors and demonstrates broad application prospects in biomedicine.
Language: Английский
Citations
0
Nano Letters, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 7, 2025
Deep-blue electroluminescent light-emitting diodes (ELEDs) are crucial for various applications, including solid-state lighting, high-density information storage, and vibrant displays. Currently, the development of conventional deep-blue ELEDs is predominantly based on multilayer evaporation structures. Despite significant technological progress, fabrication devices via low-cost solution processing has still not fully been realized. Given that, a novel approach their emission carbon dots (CDs) proposed in this study. The as-prepared CDs exhibited quantum yield close to 100% high exciton binding energy. CDs-based provided at wavelength 450 nm, with CIE coordinates (0.15, 0.07), closely approaching standard color Rec. 2020 specification (0.131, 0.046). These results provide sufficient evidence that fabricated work one highest-performing developed so far, providing efficiency over 10%.
Language: Английский
Citations
0