A5100678454- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Solar-Powered Water Purification Methods
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photocatalysis Techniques
- Silicon and Solar Cell Technologies
- Conducting polymers and applications
- Thermal Radiation and Cooling Technologies
- Molecular Junctions and Nanostructures
- Quantum optics and atomic interactions
- Nanowire Synthesis and Applications
- Semiconductor materials and devices
- Chalcogenide Semiconductor Thin Films
- Nanopore and Nanochannel Transport Studies
- Advanced biosensing and bioanalysis techniques
- Atomic and Subatomic Physics Research
- Integrated Circuits and Semiconductor Failure Analysis
- Shape Memory Alloy Transformations
- Organic Light-Emitting Diodes Research
- Magnetic Properties and Applications
- Soil Mechanics and Vehicle Dynamics
- Organic Electronics and Photovoltaics
- Mechanical Engineering and Vibrations Research
- Mechanical and Optical Resonators
- 2D Materials and Applications
Soochow University
2009-2023
Technical University of Munich
2023
Suzhou University of Science and Technology
2023
The University of Kitakyushu
2023
Suzhou Research Institute
2020
State Council of the People's Republic of China
2020
Huaiyin Normal University
2020
Renfe Operadora (Spain)
2019
Changshu Institute of Technology
2018-2019
State Key Laboratory of Molecular Reaction Dynamics
2017
Direct electricity generation from water flow/evaporation, coined hydrovoltaic effect, has recently attracted intense interest as a facile approach to harvest green energy ubiquitous capillary flow or evaporation. However, the current device is inferior in output power efficiency compared other renewable devices. Slow evaporation rate and inefficient charge collection at electrodes are two fundamental drawbacks limiting efficiency. Here, we report bioinspired hierarchical porous fabric...
Recently, considerable researches have reported that the incorporation of potassium cation (K + ) in lead halide perovskites obviously improves performance perovskite solar cells. The recent finding indicates interstitial occupancy position K lattice can increase ion‐migration barrier, which dramatically suppresses hysteresis device. However, enhancement photoluminescence (PL) as well bandgap variation cannot be interpreted by state perovskite. Considering this discrepancy, it has been found...
Abstract Recently, hydrovoltaic technology emerged as a novel renewable energy harvesting method, which dramatically extends the capability to harvest water energy. However, urgent issue restricting its device performance is poor carrier transport properties of solid surface if large charged interface considered simultaneously. Herein, based on silicon nanowire arrays (SiNWs), provide surface/volume ratio and excellent properties, yields sustained electricity by concentration gradient...
Moisture-triggered electricity generator (MEG) harvesting energy from the ubiquity of atmospheric moisture is one promising potential candidates for renewable power demand. However, MEG device performance strongly dependent on concentration, which results in its large fluctuation electrical output. Here, a Janus heterojunction consisting nanostructured silicon and hygroscopic polyelectrolyte incorporating hydrophilic carbon nanotube mesh proposed to enable ambient continuous stable output...
The poor operational stability remains a key challenge in perovskite light-emitting diodes. In this work, we investigate the detrimental effects of thermal-induced interface degradation on device performance
Abstract In non‐fullerene‐based photovoltaic devices, it is unclear how excitons efficiently dissociate into charge carriers under small driving force. Here, we developed a modified method to estimate dielectric constants of PM6 donor and non‐fullerene acceptors. Surprisingly, most acceptors blend films showed higher constants. Moreover, they exhibited larger differences at the optical frequency. These results are likely bound reduced exciton binding energy bimolecular recombination....
Abstract Quasi‐2D perovskites are enchanting alternative materials for solar cells due to their intrinsic stability. The manipulation of crystal orientation quasi‐2D is indispensable target efficient devices, however, the origin during film fabrication process still lacks in‐depth understanding and convincing evidence yet, which hinders further boosting performance photovoltaic devices. Herein, crystallizing processes spin‐coating annealing probed by in situ grazing‐incidence wide‐angle...
Organic–inorganic hybrid perovskite solar cells have attracted much attention due to their high power conversion efficiency (>25%) and low-cost fabrication. Yet, improvements are still needed for more stable higher-performing cells. In this work, a series of TiO2 nanocolumn photonic structures been intentionally fabricated on half the compact TiO2-coated fluorine-doped tin oxide substrate by glancing angle deposition with magnetron sputtering, method particularly suitable industrial...
Non-radiative recombination in all-inorganic CsPbBr<sub>3</sub> perovskite films was dramatically reduced upon partial replacement of lead ions with magnesium, leading to efficient and stable light-emitting diodes.
Abstract Halide perovskites are promising emitters for light‐emitting diodes (LEDs) due to their outstanding optoelectronic properties, i.e., tunable bandgap, high photoluminescence quantum efficiency, and excellent color purity. However, in contrast green red cousins, the present blue perovskite LEDs still suffering from poor operational lifetime electroluminescence shift during bias operation, hindering practical applications full‐color information displays. Developing rational strategies...
Abstract The hydrovoltaic effect is a recently‐developed means to directly generate electric power from omnipresent water resources, which has drawn substantial attention in the energy harvesting and conversion domain. Unfortunately, output density significantly lags behind other generation ways. Although numerous efforts have been made develop various active materials catering improved output, yet less paid interface between electrodes. Here, an atomic layer deposition deposited titanium...
We experimentally demonstrate an erasure of stored optical information in a Pr3+:Y2SiO5 crystal by applying erasing pulse to destroy atomic spin coherence. observed efficiency about 85%. Such operation may have practical applications the field processing and all-optical network.
We experimentally demonstrate light storage and release in a four-level double-lambda atomic system of Pr (3+):Y(2)SiO(5) crystal. Based on the technique storage, we realize optical information transfer between two channels. The coherent probe pulse stored crystal can be selectively released into different channels by varying frequency propagation direction switch-on control field.
The higher-order harmonic resonances, including second and third modes, were induced by applying alternative current signals inside a high-resolution transmission electron microscope (HRTEM), which have been used to study the mechanical properties of individual cadmium sulphide (CdS) nanowires. Young's moduli (E) quality factors (Q) CdS nanowires with diameters in range 50–350 nm measured assistance resonances. results indicate that smooth larger E Q comparison rough nanowires, for increase...
Carrier‐selective passivating contacts play a crucial role in highly efficient silicon solar cells targeting the cost‐effective photovoltaic industry. Widely developed hole‐selective passivating‐contact molybdenum oxide (MoO x ) exhibits inferior long‐term stability induced by chemical reactions between MoO and adjacent metals. Herein, low‐temperature magnetron‐sputtering‐deposited nitride (MoN films are as stable for crystal cells. The work function of MoN can be deep 5.62 eV featuring low...
We demonstrate storage and selective release of a light pulse in Pr:YSO crystal, which is based on atomic spin coherence created by fractional stimulated Raman adiabatic passage (STIRAP). The STIRAP gives better fidelity compared to STIRAP. Selective stored optical information have practical applications processing all-optical communication.
Molybdenum nitride (MoNx) was perceived as carrier-selective contacts (CSCs) for crystalline silicon (c-Si) solar cells due to having proper work functions and excellent conductivities. However, the poor passivation non-Ohmic contact at c-Si/MoNx interface endow an inferior hole selectivity. Here, surface, interface, bulk structures of MoNx films are systematically investigated by X-ray scattering, surface spectroscopy, electron microscope analysis reveal features. Surface layers with...
Abstract Solution‐processed white quantum dot light‐emitting diodes (WQLEDs) hold great promise for lighting and backlight applications. Stacked blue/green/red dots (QDs) films as an emitting layer through the layer‐by‐layer deposition offer a simple way to realize WQLEDs. However, redissolution issue rising from of adjacent QDs layers prevents fabrication high‐quality multilayer emissive layers. Here, ligand exchange strategy is developed improve solvent‐resistance by exposing in trace acid...