A5013072714- Perovskite Materials and Applications
- 2D Materials and Applications
- Laser-Matter Interactions and Applications
- Mass Spectrometry Techniques and Applications
- Laser-induced spectroscopy and plasma
- Organic Electronics and Photovoltaics
- Molecular Junctions and Nanostructures
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Lipoproteins and Cardiovascular Health
- Ion-surface interactions and analysis
- Atomic and Molecular Physics
- Graphene research and applications
- Advanced Chemical Physics Studies
- Gas Sensing Nanomaterials and Sensors
- MXene and MAX Phase Materials
- Laser Design and Applications
- Advanced Memory and Neural Computing
- Atherosclerosis and Cardiovascular Diseases
- Anodic Oxide Films and Nanostructures
- Nanowire Synthesis and Applications
- Surface and Thin Film Phenomena
- Transition Metal Oxide Nanomaterials
- Fullerene Chemistry and Applications
Central South University
2014-2024
Nanjing University of Chinese Medicine
2023
Nanjing University of Science and Technology
2019-2020
University of Rochester
2016-2020
Kashi University
2020
Xiangnan University
2020
Changsha University
2018
Nanjing University
2008-2017
Nanjing General Hospital of Nanjing Military Command
2008-2017
Wuhan University
2013
Sb2Se3 is a promising absorber material for photovoltaic cells because of its optimum band gap, strong optical absorption, simple phase and composition, earth-abundant nontoxic constituents. However, this rarely explored application. Here we report solar fabricated from thermal evaporation. The rationale to choose evaporation film deposition was first discussed, followed by detailed characterization deposited onto FTO with different substrate temperatures. We then studied the...
Recently, CuSbS2 has been proposed as an alternative earth-abundant absorber material for thin film solar cells. However, no systematic study on the chemical, optical, and electrical properties of reported. Using density functional theory (DFT) calculations, we showed that superior defect physics with extremely low concentration recombination-center defects within forbidden gap, espeically under S rich condition. It intrinsically p-type conductivity, which is determined by dominant Cu...
Hardware implementation of artificial synapses/neurons with 2D solid‐state devices is great significance for nanoscale brain‐like computational systems. Here, MoS 2 synaptic/neuronal transistors are fabricated by using poly(vinyl alcohol) as the laterally coupled, proton‐conducting electrolytes. Fundamental synaptic functions, such an excitatory postsynaptic current, paired‐pulse facilitation, and a dynamic filter information transmission biological synapse, successfully emulated. Most...
Pain-perceptual nociceptors (PPN) are essential sensory neurons that recognize harmful stimuli and can empower the human body to react appropriately perceive precisely unusual or dangerous conditions in real world. Furthermore, sensitization-regulated (SRN) greatly assist pain-sensitive reduce pain sensation by normalizing hyperexcitable central neural activity. Therefore, implementation of PPNs SRNs hardware using emerging nanoscale devices improve efficiency bionic medical machines giving...
Interfacial electronic properties of the CH3NH3PbI3 (MAPbI3)/MoOx interface are investigated using ultraviolet photoemission spectroscopy and X-ray spectroscopy. It is found that pristine MAPbI3 film coated onto substrate poly (3,4-ethylenedioxythiophene) poly(styrenesulfonate)/indium tin oxide by two-step method behaves as an n-type semiconductor, with a band gap ∼1.7 eV valence edge 1.40 below Fermi energy (EF). With MoOx deposition 64 Å upon MAPbI3, levels shift toward higher binding 0.25...
A homologous Ni-Co based nanowire catalyst pair, composed of Ni(x)Co(3-x)O4 nanowires and NiCo/NiCoO(x) nanohybrid, is developed for efficient overall water splitting. are found as a highly active oxygen evolution reaction (OER) catalyst, they converted into hydrogen (HER) through hydrogenation treatment heteronanostructures. An OER current density 10 mA cm(-2) obtained with the under an overpotential 337 mV in 1.0 M KOH, HER heteronanostructures at 155 mV. When integrated electrolyzer,...
Highly efficient and reproducible cesium (Cs) doped triple cation (Cs, methylammonium (MA) formamidinium (FA)) lead trihalide perovskite planar heterojunction (PHJ) solar cells are fabricated via low‐temperature process with a simple architecture of ITO/SnO 2 /Perovskite/Spiro‐OMeTAD/Ag, which the power conversion efficiency (PCE) up to 20.51% negligible hysteresis steady output PCE 20.22% can be achieved. Cs‐intercalation is useful for forming high‐quality Cs‐doped films larger gains band...
Perovskite photodetectors are fabricated via structuring a perovskite/organic heterojunction with CH 3 NH PbI and high‐mobility stable organic semiconductor dioctylbenzothieno [2,3‐b] benzothiophene (C8BTBT), which possess broad range photoresponse from ultraviolet to near‐infrared, fast response, excellent stability. The /C8BTBT exhibit an ratio of photocurrent dark current, I light / , as high 2.4 × 10 4 responsivity up 24.8 AW −1 response about 4.0 ms. Meanwhile, the can maintain 90%...
The electronic structure and surface composition of CH3NH3PbI3 (MAPbI3) films fabricated by one-step method with different precursor ratios PbI2 to CH3NH3I (PbI2/MAI) have been investigated ultraviolet photoelectron spectroscopy (UPS) X-ray (XPS). It is found that the core levels all components in MAPbI3 film shift toward lower binding energy decreasing ratio PbI2/MAI, indicating structures can be adjusted PbI2/MAI. elemental compositions also depend on annealing process, are strongly...
Abstract Circulating microRNAs (miRNAs) are emerging biomarkers for type 2 diabetes mellitus (T2DM). However, a comprehensive characterization of the serum miRNA profile in patients with T2DM-associated microvascular disease (T2DMC) has rarely been reported. In this study, we obtained samples from 184 T2DM (92 complications and 92 free complications) age/gender-matched controls. The levels 754 miRNAs were initially analyzed using TaqMan Low Density Array (TLDA) three pooled 24 patients,...
Abstract Because of its tunable band gap and position, Sb 2 (Se 1 − x S ) 3 (0 ≤ 1) is a promising light‐absorbing material for photovoltaic device applications. However, no systematic study on the synthesis characterization single‐phase polycrystalline thin films has been reported. Through introducing in situ sulfurization into rapid thermal evaporation process, series single‐phase, highly crystalline with = 0.09, 0.20, 0.31, 0.43 were successfully obtained, corresponding gap, position film...
An irreversible light-soaking effect was disclosed in perovskite solar cells using TiO2 as an electron transporting layer. The power conversion efficiency of a fresh device improved more by twice after light soaking for 15 min and then remained 70% even though the recovered dark 4 days. buried mechanism explored shedding on interaction between titanium dioxide. Oxygen vacancies were found to be increased light-soaking, especially wavelengths shorter than 400 nm. Such enhanced N-type doping...
The interfacial electronic structure at the organic–inorganic semiconductor interface plays an important role in determining electrical and optical performance of organic-based devices. Here, we studied molecular alignment thermally deposited 3,4,9,10-perylene-tetracarboxylic-dianhydride (PTCDA) molecules on cleaved black phosphorus using photoelectron spectroscopy. work function is substantially upped with organic thin film, originating from charge transfer to PTCDA. According our...
Currently, most explanations of nanotube growth are limited to chemical or field-assisted dissolution, in the belief that an increase water content will corrosive effect electrolyte and accelerate rate nanotubes. Here, titanium foils were anodized at a constant voltage (50 V) 0.5 wt% NH4F ethylene glycol containing 2 H2O 10 H2O. It was found nanotubes with significantly faster than H2O, contradicting traditional dissolution theory. A detailed explanation is given using electronic current...
Highly ordered organic crystals are important building blocks for future high-performance nanodevices. Here we report a feasible way to produce arrays of well-ordered 1D copper phthalocyanine (CuPc) nanocrystals by using molybdenum disulfide (MoS2) or highly oriented pyrolytic graphite (HOPG) as substrates. The growth behaviors CuPc on MoS2(0001) well HOPG and corresponding effects air exposure were systematically investigated means in situ photoemission spectroscopy (PES) low-energy...
Combining ultraviolet photoemission spectroscopy (UPS), X-ray (XPS), atomic force microscopy (AFM) and small angle diffraction (SAXD) measurements, we perform a systematic investigation on the correlations of electronic structure, film growth molecular orientation 2,7-diocty[1]benzothieno[3,2-b]benzothiophene (C8-BTBT) silicon oxide (SiO2). AFM analysis reveals phase transition disorderedly oriented molecules in clusters thinner films to highly ordered standing-up islands thicker films. SAXD...
The evolution of the electronic structure at interface between fullerene (C60) and La0.67Sr0.33MnO3 (LSMO) has been investigated with ultraviolet photoemission spectroscopy X-ray spectroscopy. There is a 0.61 eV barrier for electrons to be injected from LSMO C60. energy bands keep bending upward increasing C60 thickness. A total 0.72 observed, changing film n-type p-type. n-p transition ascribed diffusion oxygen which subsequently strips C60, making latter Our results suggest buffer layer...
Combining ultraviolet photoemission spectroscopy, X-ray atomic force microscopy, and diffraction measurements, we performed a systematic investigation on the correlation of energy level alignment, film growth, molecular orientation 2,7-diocty[1]benzothieno[3,2-b]benzothiophene (C8-BTBT) highly oriented pyrolytic graphite. The molecules lie down in first layer then stand up from second layer. ionization potential shows sharp decrease lying region to standing region. When C8-BTBT start up,...
Modification of the ultrathin N,N′-Di(1-naphthyl)-N,N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine (NPB) insertion layer on electronic structures CH3NH3PbI3 (MAPbI3)/MoO3 interfaces is investigated using ultraviolet photoelectron spectroscopy (UPS) and X-ray (XPS). It found that when an NPB 16 Å inserted between MAPbI3 MoO3, chemical reaction latter two can be effectively suppressed, a favorable energy-level alignment achieved. The valence band maximum (VBM) or highest occupied molecular orbital...
We have developed inorganic copper antimony sulfide (Cu<sub>3</sub>SbS<sub>4</sub>) nanocrystals as a hole transporting material (HTM) for PSCs by hot-injection and spray-deposition technique.
Two dimensional atomic crystals, like grapheme (G) and molybdenum disulfide (MoS2), exhibit great interest in electronic optoelectronic applications. The excellent physical properties, such as transparency, semiconductivity, flexibility, make them compatible with current organic electronics. Here, we review recent progress the understanding of interfaces van der Waals (vdW) heterostructures between small molecules (pentacene, copper phthalocyanine (CuPc), perylene-3,4,9,10-tetracarboxylic...