A5100650362- Gold and Silver Nanoparticles Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Copper-based nanomaterials and applications
- Chalcogenide Semiconductor Thin Films
- Carbon Nanotubes in Composites
- Nanocluster Synthesis and Applications
- Plasmonic and Surface Plasmon Research
- Graphene research and applications
- Advanced biosensing and bioanalysis techniques
- Nanowire Synthesis and Applications
- Advanced Memory and Neural Computing
- Diamond and Carbon-based Materials Research
- TiO2 Photocatalysis and Solar Cells
- Gas Sensing Nanomaterials and Sensors
- Semiconductor materials and devices
- Advanced Sensor and Energy Harvesting Materials
- Electrochemical Analysis and Applications
- Advanced Battery Materials and Technologies
- 2D Materials and Applications
- Mitochondrial Function and Pathology
- Metamaterials and Metasurfaces Applications
- Phase Change Materials Research
- Electromagnetic wave absorption materials
- Trace Elements in Health
- Diet and metabolism studies
First Affiliated Hospital of Xi'an Jiaotong University
2025
Fuyang Maternity and Child Health Care Hospital
2024
Zhejiang Normal University
2023-2024
Northwestern Polytechnical University
2023
State Key Laboratory of Superhard Materials
2019-2021
Jilin University
2019-2021
Jilin Medical University
2019
Jilin Normal University
2017-2018
Tsinghua University
2013-2014
State Key Laboratory of New Ceramics and Fine Processing
2014
Pressure-induced surface-enhanced Raman spectroscopy (PI-SERS) represents a new frontier in the research field of SERS. However, relatively few studies have focused on PI-SERS due to many difficulties, such as easy aggregation nanoparticles, and difficulty understanding interaction mechanisms between probe molecules SERS substrate at high pressure. Here we developed an efficient semiconductor-metal (MoS2/Au) study PI-SERS. Different from previously reported monotonous decrease intensities...
Graphite is known to transform into diamond under dynamic compression or combined high pressure and temperature, either by a concerted mechanism nucleation mechanism. However, these mechanisms fail explain the recently reported discovery of formation during ambient temperature with shear stress. Here we report new transition pathway for graphite shear, based on results from both theoretical simulations advanced experiments. In contrast model thermally activated pressure, shear-induced takes...
In this study, we designed shell-dependent Ag@Cu<sub>2</sub>O core–shell nanoparticles (NPs) for SERS study. Compared to Cu<sub>2</sub>O NPs, NPs exhibited high activity because of the localized surface plasmon resonance (LSPR) from Ag core.
As a newly emerging approach for surface-enhanced Raman spectroscopy (SERS), pressure-induced SERS (PI-SERS) has been attracting increasing interest its applications in signal enhancement at extreme conditions. However, how to efficiently realize the PI-SERS and elucidate corresponding mechanism remain open questions. Herein, we demonstrate up 8.04 GPa using monolayer molybdenum disulfide (ML-MoS2) as substrate three organic molecules with similar energy levels but different symmetries...
Cu2ZnSn(S,Se)4 (CZTSSe) thin-film solar cells have been encountering a bottleneck period since the champion power conversion efficiency (PCE) of 12.7% was achieved by Kim et al. in 2014. One critical factors that impede its further development is relatively low open-circuit voltage (VOC) caused serious interface carrier recombination. In this regard, back surface field (BSF) employment feasible strategy to address VOC issue CZTSSe some extent. Here, we demonstrated self-organized BSF...
Prussian blue analogues (PBAs) are regarded as effective pre-catalysts for oxygen evolution reaction (OER), but the underlying mechanism of their electrochemical activation is still not well elucidated. In this work, we design and construct PBAs-based to unveil achieve high-efficient OER. The PBAs undergo <em>in situ</em> transformation form corresponding metal (oxy)hydroxides (M(O)OH) true OER catalyst. More importantly, hexacyanoferrate ligands unveiled experience repetitive interfactial...
For further efficiency improvement in kesterite-type Cu2ZnSn(S,Se)4 (CZTSSe) solar cells, it is essential to address the carrier recombination issue at back electrode interface (BEI) caused by undesirable built-in potential orientation toward an absorber as n-MoSe2 interfacial layer formed. In this regard, surface field (BSF) incorporation, i.e., field-effect passivation, shows promise for dealing with due its positive effect decreasing BEI. study, BSF was realized p-type conduction...
Pressure-induced surface-enhanced Raman spectroscopy (PI-SERS) is among the foremost achievements of high-pressure fields, benefiting from advantage that pressure-modulated interactions between substrates and molecules overcome weakness individual or molecules. However, pressure corresponding to PI-SERS enhancement currently still at a low-pressure stage within 8 GPa. Therefore, how realize under higher ultrahigh remains huge challenge. Here, we applied few-layer WS2 (FL-WS2) nanosheets as...
Flexible heterojunction solar cells were fabricated from carbon nanotubes (CNTs) and mono-crystalline Si thin films at room temperature. The with thickness less than 50 μm are prepared by chemically etching wafer in a KOH solution. initial efficiency of the thin-film cell varies approximately 3% to 5%. After doping few drops 1 M HNO3, increases 6% short-circuit current density 16.8 mA/cm(2) fill factor 71.5%. performance depends on surface state films, as well interface CNT/Si. flexible...
Achieving a high‐quality heterojunction interface (HEI) and absorber is crucial for the efficient Cu 2 ZnSn(S,Se) 4 (CZTSSe) solar cells. Herein, an alternative feasible passivation strategy aiming to harness synergistic effects (SPE) by introducing CuAlO (CAO) into HEI developed. During selenization process, interdiffusion of elements occurs between CAO, resulting in anticipated inversion electrical properties from p‐ n‐type shallow bulk enabling construction homogeneous field passivation....
Surface-enhanced Raman spectroscopy (SERS) has emerged as a highly sensitive trace detection technique in recent decades, yet its exceptional performance remains elusive semiconductor materials due to the intricate and ambiguous nature of SERS mechanism. Herein, we have synthesized MoS2 nanoflowers (NFs) decorated with Au nanoparticles (NPs) by hydrothermal redox methods explore size-dependence effect. This strategy enhances interactions between substrate molecules, resulting uniformity...
Pressure-induced surface-enhanced Raman spectroscopy (PI-SERS) has garnered significant attention as a subfield of SERS detection due to its capacity regulate the band gap between molecules and substrates through pressure modulation. Currently, primarily focuses on single at atmospheric with limited investigations conducted under high conditions. Herein, we employed rose-shaped MoS
An increased local field is crucial to create hotspots when applied in detections, which usually means the fabrication of nanostructure arrays with strong electromagnetic couplings.
As compared to the predecessor Cu(In,Ga)Se 2 device, current efficiency of kesterite Cu ZnSn(S,Se) 4 (CZTSSe) solar cells is still much lower mainly due known carriers recombination issue within interface and absorber bulk. In contrast majority researches concerning issues that focus on either single bulk or passivation strategy, this study pioneering in constructing synergistic effects (SPE) address simultaneously. By introducing a novel niobium pentoxide layer into back electrode (BEI), it...
Traditional TiO2 based photodetectors (PDs) suffer from high dark resistance, which increases loss of photoexcited charge carriers. Here, we report a new and simple way to improve the performance PDs on double-walled carbon nanotube (DWCNT)/TiO2 heterojunctions. Highly ordered arrays were fabricated using two-step anodic oxidation method, coated with DWCNT film, functioned as semitransparent electrode photoactive layer. Via pre-electroforming, device was switched resistance state (HRS) low...
We study the influence of gas absorption on photovoltaic properties carbon nanotube/Si solar cells (CSSCs). The power efficiency CSSCs changes evidently when exposed in gas, resulting from resistance change nanotube (CNT) by absorption. performances degrade they are long time air, which results mainly excessive Gas desorption CNTs is accelerated applying a current through cells, making recovery efficiency. By before light illumination, show stable at ∼10% one month.
When excited by microwaves, carbon clusters of C<sub>2</sub> are exfoliated from nanotubes, leading to structural changes and strong light emission.