Hao Zheng

ORCID: 0000-0003-3034-2397
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About
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Research Areas
  • Advancements in Battery Materials
  • Advanced Battery Materials and Technologies
  • Perovskite Materials and Applications
  • Electrodeposition and Electroless Coatings
  • Advanced Battery Technologies Research
  • Metallic Glasses and Amorphous Alloys
  • Conducting polymers and applications
  • Cyclone Separators and Fluid Dynamics
  • Semiconductor materials and interfaces
  • Medical Imaging and Analysis
  • Iron-based superconductors research
  • Thermal Expansion and Ionic Conductivity
  • Advanced materials and composites
  • Topological Materials and Phenomena
  • Nuclear Materials and Properties
  • 2D Materials and Applications
  • Innovative Microfluidic and Catalytic Techniques Innovation
  • Solid-state spectroscopy and crystallography
  • Electronic Packaging and Soldering Technologies
  • Advanced Thermoelectric Materials and Devices
  • Neuroscience and Neural Engineering
  • Metal and Thin Film Mechanics
  • Luminescence Properties of Advanced Materials
  • Ocular and Laser Science Research
  • Additive Manufacturing and 3D Printing Technologies

Shanghai Jiao Tong University
2018-2020

Wuhan Ship Development & Design Institute
2018-2020

Forschungszentrum Jülich
2018-2019

Changshu Institute of Technology
2019

Nickel oxide (NiO x ) has exhibited great potential as a hole transport layer (HTL) for fabricating efficient and stable perovskite solar cells (PSCs). However, it been greatly limited by its fabrication manipulation process. In this work, simple processing method on an ultrathin electrochemical mesoporous NiO film manipulated controllable ultraviolet/ozone (UVO) treatmentis employed; the duration of UVO treatment significantly affects photovoltaic properties PSCs. When exposure increases,...

10.1002/solr.201900045 article EN Solar RRL 2019-03-28

Recent experiments and simulations have sparked growing interest in the study of Rayleigh–Bénard convection very slender cells. One pivotal inquiry arising from this is elucidation flow structure within these Here we employ tomographic particle image velocimetry, for first time, to capture experimentally full-field three-dimensional three-component velocity field a cylindrical cell with aspect ratio $\Gamma =1/10$ . The cover Rayleigh number range $5.0 \times 10^8 \leqslant Ra 5.0 10^9$...

10.1017/jfm.2025.183 article EN other-oa Journal of Fluid Mechanics 2025-03-18

In article no. 1900045, Hong Liu, Wenzhong Shen, and co-workers employ a controllable ultraviolet/ozone (UVO) treatment to prepare high-quality electrochemically deposited NiOx hole transport layer (HTL). Under optimal conditions of UVO treatment, the increased conductivity in HTL, reduced interface defects, narrowed offset valence band between HTL perovskite film result high-performing solar cells with an efficiency 19.67%.

10.1002/solr.201970063 article EN Solar RRL 2019-06-01

Ligand-assisted reprecipitation (LARP) is a convenient and low-cost method to synthesize perovskite nanoplatelets (NPLs) with great optoelectronic properties. However, it still suffers from delicate purification passivation. Here, we report the synthesis of NPLs via simple one-step through using chlorobenzene as poor solvent. These as-prepared exhibit good lateral-size homogeneity emission wavelength tunability. Controlled experiment indicates that compared commonly used toluene, advantaged...

10.1088/1361-6528/aadc8e article EN Nanotechnology 2018-08-23

Noninvasive transcorneal electrical stimulation (TES) has emerged as a potential strategy to facilitate visual restoration and promote retinal cell survival for certain optic nerve diseases owing its neuroprotective effects. However, the neurovascular responses of neurons evoked by TES have not been completely determined. To investigate this issue, we utilized custom-designed spectral-domain optical coherence tomography (SD-OCT) record neural vascular under in vivo simultaneously....

10.1177/1535370219900495 article EN Experimental Biology and Medicine 2020-01-20

Abstract Multi-hole jets are commonly employed in most technical applications for cooling and depressurization of high-temperature high-pressure steam emissions due to their extraordinarily high heat mass transfer efficiency. Due the complexity micromechanics condensation, numerical calculations, existing models do not fully satisfy simulation needs, particularly under porous circumstances, past research has concentrated on single-pore jet direct contact condensation (DCC). Based ADS 1-3...

10.1115/icone31-135676 article EN 2024-08-04

The interference of overlapping bones and pulmonary structures can reduce the effectiveness Chest X-ray (CXR) examinations. Bone suppression techniques have been developed to improve diagnostic accuracy. Dual-energy subtraction (DES) imaging, a common method for bone suppression, is costly exposes patients higher radiation levels. Deep learning-based image generation methods proposed as alternatives, however, they often fail produce high-quality high-resolution images, resulting in loss...

10.48550/arxiv.2412.15670 preprint EN arXiv (Cornell University) 2024-12-20

In this paper, a theoretical analysis is carried out on the pneumatic diaphragm drop-on demand technology. The typical forming process of droplet analyzed, and working principle injection studied. fluid calculation software FLUENT used as platform to simulate formation metal micro-droplets under gas pulse. Experiments demonstrate that micro-jetting technology has good performance micron droplets generation dispensing. And experimental results agree well with simulation results, which proves...

10.1109/ectc.2019.00212 article EN 2019-05-01

With the high operating temperature in power electronics, intermetallic compounds (IMCs) formed between solders and substrates can rapidly grow lead to integration failure, which requires a robust diffusion barrier at elevated temperature. Electroless Ni-Fe-P coating be good alternative due its excellent electrical conductivity, thermal stability property. In this work, preparation of ternary alloy quality were reported. Mechanical properties evaluated by nanoindentation tests. It was found...

10.1109/eptc.2018.8654439 article EN 2022 IEEE 24th Electronics Packaging Technology Conference (EPTC) 2018-12-01

After the unexpected discovery of similar metal dendrite issues in dense ceramic electrolytes as conventional liquid ones, key factors governing lithium growth e.g. Li 7 La 3 Zr 2 O 12 are still not fully understood. Possible include ion diffusion kinetics at grain boundaries, influenced by microstructure [1, 2] and density [3], well inhomogeneous contact between LLZ solid electrolyte electrodes, leading to high resistance. Multiple strategies can be employed reduce resistance: first,...

10.1149/ma2018-01/3/480 article EN Meeting abstracts/Meeting abstracts (Electrochemical Society. CD-ROM) 2018-04-13

The theoretical limit photoelectric conversion efficiency of the new perovskite/silicon-based tandem solar cell can reach 42%, which has attracted wide attention due to its spectral response and low preparation cost. At present, optical loss mechanical stack is large, so design laminated battery crucial. In this paper, cells with backplate grating structure are used as models analyze absorption characteristics stacked by FDTD. results show that parameters such period height backplane...

10.1117/12.2539761 article EN 2019-07-08
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