A5087694328- Graphene research and applications
- Carbon and Quantum Dots Applications
- Nanocluster Synthesis and Applications
- Luminescence and Fluorescent Materials
- Graphene and Nanomaterials Applications
- Quantum Dots Synthesis And Properties
- 2D Materials and Applications
- Advancements in Battery Materials
- Anodic Oxide Films and Nanostructures
- Advanced biosensing and bioanalysis techniques
- Nanowire Synthesis and Applications
- Thermal properties of materials
- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photocatalysis Techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanoplatforms for cancer theranostics
- ZnO doping and properties
- Ga2O3 and related materials
- Semiconductor materials and devices
- Gas Sensing Nanomaterials and Sensors
- Diamond and Carbon-based Materials Research
- Photoreceptor and optogenetics research
- Carbon Nanotubes in Composites
Shanghai Institute of Microsystem and Information Technology
2016-2025
Chinese Academy of Sciences
2016-2025
University of Chinese Academy of Sciences
2017-2025
University of Shanghai for Science and Technology
2025
Shanghai University of Engineering Science
2022-2024
Academia Sinica
2015-2023
Ningbo University
2018-2022
State Key Laboratory of Functional Materials for Informatics
2018
Shanghai University
2016
Shanghai Advanced Research Institute
2015
Graphene has initiated intensive research efforts on 2D crystalline materials due to its extraordinary set of properties and the resulting host possible applications. Here authors report controllable large‐scale synthesis C 3 N, a crystalline, hole‐free extension graphene, structural characterization, some unique properties. N is fabricated by polymerization 2,3‐diaminophenazine. It consists honeycomb lattice with homogeneous distribution nitrogen atoms, where both atoms show D 6h ‐symmetry....
Recently, the biomass "bottom-up" approach for synthesis of graphene quantum dots (GQDs) has attracted broad interest because outstanding features, including low-cost, rapid, and environmentally friendly nature. However, low crystalline quality products, substitutional doping with heteroatoms in lattice, ambiguous reaction mechanism strongly challenge further development this technique. Herein, we proposed a facile effective strategy to prepare controllable sulfur (S) GQDs, occurring lattice...
A new reversible fluorescent switch for the detection of oxidative hydroxyl radical (•OH) and reductive glutathione (GSH) was designed based on use selenium doped graphene quantum dots (Se-GQDs). The Se-GQDs have a thickness 1–3 atomic layers, lateral size 1–5 nm, yield 0.29, photoluminescence lifetime 3.44 ns, which ensured high selectivity stability switch. fluorescence reversibly quenched recovered by •OH GSH, respectively, because oxidation C–Se groups reduction Se–Se groups. This...
1–3 nm nitrogen-doped graphene quantum dots with yield of 0.74 are synthesized via cutting oxide and in situ doping. The size is determined by the remaining graphitic domains precursor. doping mechanism illustrated, dominant photoluminescence factor experimentally confirmed to be n–π* transition between lattice-doped nitrogen conjugate structure graphene. As a service our authors readers, this journal provides supporting information supplied authors. Such materials peer reviewed may...
Clothing-integrated piezoelectric sensors possess great potential for future wearable electronics. In this paper, we reported a phase-separation approach to fabricate flexible based on poly(vinylidene fluoride) (PVDF)/graphene composite coating commercially available fabrics (PVDF/graphene@F). The structural units of -CH2- and -CF2- PVDF chains were arranged directionally due the induction graphene water during phase separation, which is key electroactive enrichment. optimized case,...
Abstract Wearable textile strain sensors that can perceive and respond to human stimuli are an essential part of wearable electronics. Yet, the detection subtle strains on body suffers from low sensitivity many existing sensors. Generally, inadequate originates strong structural integrity because tiny external cannot trigger enough variation in conducting network. Inspired by rolling friction where interaction is weakened decreasing interface area, porous fibers made graphene decorated with...
Abstract Those responsible for the development of sonosensitizers are faced with a dilemma between high sonosensitization efficacy and good biosecurity that limited sonodynamic therapy (SDT). Herein, inspired by intriguing therapeutic features SDT potential catalytic activity graphene quantum dots, N‐doped dots (N‐GQDs) to act as sonosensitizer is demonstrated. The superior effect N‐GQDs believed be three five times higher than traditional (such porphyrin, porphyrin Mn, Zn, TiO 2 , etc.)....
Abstract Although various effective machine‐learning attempts have been made to investigate the photoluminescence properties of graphene quantum dots (GQDs) or carbon dots, physical correlation behind their mathematical models has not reasonably elucidated. In this work, mechanism between precursor structure and yield GQDs prepared by a “bottom‐up” method is sufficiently studied. Three decisive factors affecting during two‐component reaction system preparation are revealed, namely factor...
We synthesized nitrogen-doped graphene quantum dots (N-GQDs) under a high temperature range of 800–1200 °C and pressure 4.0 GPa through solid-to-solid process.
Abstract Killing the tumor cells by a visualized targeting system is promising strategy with which to achieve high efficiency, low side effects, and survival rate for therapy. Here, an autophagy regulation reported emancipating target‐functionalized carbon dots from vesicles efficient The folic acid modified N‐doped (FN‐CDs) are selectively endocytosed (specific cellular uptake >93.40%) stably existed in autophagic vacuoles cells. Next, “opened” inhibitors. Released FN‐CDs activate both...
We demonstrated that graphene oxide can be oxidized and cut into quantum dots by hydroxyl radicals which is obtained catalytic decomposition of hydrogen peroxide with a tungsten nanowire catalyst.
Abstract Boron nitride (BN) aerogels are porous materials with a continuous three-dimensional network structure. They attracting increasing attention for wide range of applications. Here, we report the template-assisted synthesis BN by catalyst-free, low-pressure chemical vapor deposition on graphene-carbon nanotube composite using borazine as B and N sources relatively low temperature 900 ° C. The structure was achieved through structural design carbon aerogel templates. have an ultrahigh...
Abstract Flexible biocompatible mechanical energy harvesters are drawing increasing interest because of their high energy‐harvesting efficiency for powering wearable/implantable devices. Here, a type “self‐matched” tribo‐piezoelectric nanogenerators composed genetically engineered recombinant spider silk protein and piezoelectric poly(vinylidene fluoride) (PVDF)‐decorated poly(ethylene terephthalate) (PET) layers is reported. The PET layer serves as shared structure electrification both...
The large band gap (2.7 eV) of graphite‐like carbon nitride (g‐C 3 N 4 ) enables the g‐C quantum dots QDs) to show near ultraviolet‐blue photoluminescence. This study demonstrates effective control QDs by phosphorus doping for first time. With electronic injection process lattice doped P, decreased observably. emission wavelength (P‐g‐C can be tuned in whole visible light range (385–762 nm) changing concentration. Due direct these P‐g‐C QDs, yield is higher than 0.90. authors also...
The unidirectional alignment of graphene islands is essential to the synthesis wafer-scale single-crystal on Ge(110) surface, but underlying mechanism not well-understood. Here we report that necessary coalignment nucleating surface caused by presence step-pattern; show preannealed textureless appear nonpreferentially orientated, while surfaces with natural step pattern, all emerge coaligned. First-principles calculations and theoretical analysis reveal this different behaviors originate...
Abstract Early warning of tumor formation is crucial for the classification, treatment, and prognosis patients. Here, a new strategy reported, aimed at realizing this goal based on imaging aerobic glycolysis processes using nitrogen‐doped carbon dots (N‐CDs) as fluorescent probes. The intensity photoluminescence emitted by N‐CDs specifically enhanced nicotinamide adenine dinucleotide (NAD + , oxidized) in physiological environment. allow few (five to ten) abnormal cells spontaneous...
Abstract Studying the phosphorescent mechanisms of carbon nanostructures synthesized by “bottom‐up” approach is key to understanding structure modulation and interfacial properties nanostructures. In this work, relationships among symmetry precursors in synthesis, structures products, phosphorescence lifetimes graphene quantum dots (GQDs) are studied. The matching formation a D 6h graphene‐like framework considered factor controlling separability sp 2 domains GQDs. As GQDs increases,...
High-performance broadband photodetectors (PDs) are crucial in various military and civilian applications. However, conventional near-infrared (NIR) PDs still face several inevitable self-limitations such as a finite light absorption range for silicon (Si) large area array issues InGaAs. In response to these challenges, this work proposes high-performance uncooled NIR PD with wide-band long-term stability, which is integrated by the PbS quantum dots (QDs)/three-dimensional graphene...
The controllable and efficient electrochemical preparation of highly crystalline graphene quantum dots (GQDs) in an aqueous system is still challenging. Here, we developed a weak electrolyte-based (typically ammonia solution) method to enhance the oxidation cutting process therefore achieve high yield GQDs. GQDs (3–8 nm) 28%, approximately 28 times higher than prepared by other strong electrolytes. whole can be accomplished within 2 h because effective free radical suppressed...
Efficient charge transport is especially important for achieving high performance of perovskite solar cells (PSCs). Here, molecularly designed graphite-nitrogen doped graphene quantum dots (GN-GQDs) act as a functional semiconductor additive in film. GN-GQDs with abundant N active sites participate the crystallization film and effectively passivate grain boundary (GB) trap states by Lewis base/acid interaction. Moreover, semiconductive at GBs exhibit matched energy structure perovskite,...