Hai Zhang

ORCID: 0000-0001-7704-1589
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About
Contact & Profiles
Research Areas
  • Combustion and flame dynamics
  • Advanced Combustion Engine Technologies
  • Thermochemical Biomass Conversion Processes
  • Catalytic Processes in Materials Science
  • Organic Light-Emitting Diodes Research
  • Fire dynamics and safety research
  • Combustion and Detonation Processes
  • Particle Dynamics in Fluid Flows
  • Luminescence and Fluorescent Materials
  • Cyclone Separators and Fluid Dynamics
  • Heat transfer and supercritical fluids
  • Geomechanics and Mining Engineering
  • Organic Electronics and Photovoltaics
  • Adsorption and Cooling Systems
  • Rocket and propulsion systems research
  • Advanced Photocatalysis Techniques
  • Conducting polymers and applications
  • Industrial Gas Emission Control
  • TiO2 Photocatalysis and Solar Cells
  • Chemical Looping and Thermochemical Processes
  • Blasting Impact and Analysis
  • Granular flow and fluidized beds
  • Geoscience and Mining Technology
  • Ammonia Synthesis and Nitrogen Reduction
  • Coal and Its By-products

Tsinghua University
2015-2025

Shanghai Jiao Tong University
2024-2025

China Railway Fifth Survey and Design Institute Group
2023

China Railway First Survey and Design Institute Group Co. Ltd.
2023

Research Institute of Highway
2020

Ministry of Transport
2020

Guangxi University
2020

Zunyi Normal College
2018-2019

Carl Zeiss (United States)
2018

Yalong Hydro (China)
2014

Abstract A fast reverse intersystem crossing (RISC) remains an ongoing pursuit for multiresonance (MR) emitters but faces formidable challenges, particularly indolocarbazole (ICz) derived ones. Here, heavy‐atom effect is introduced first to construct ICz‐MR emitter using a sulfur‐containing substitute, simultaneously enhancing both spin–orbit and spin–vibronic coupling afford RISC with rate of 1.2 × 10 5 s −1 , nearly one order magnitude higher than previous maximum values. The also exhibits...

10.1002/adma.202408816 article EN Advanced Materials 2024-09-17

Abstract Color‐tunable white organic light‐emitting diodes (CT‐WOLEDs) have attracted widespread attention given their large color variation to meet the different daily scenarios from perspective of circadian rhythm. However, most reported CT‐WOLEDs, especially tri‐color devices, exhibit poor performances and sophisticated structures. Here, a simple structure CT‐WOLED is demonstrated that simultaneously exhibits high efficiency, ultralong operation lifetime, wide color‐tunable range for...

10.1002/advs.202411364 article EN cc-by Advanced Science 2025-01-21

Moderate or intense low-oxygen dilution (MILD) combustion of pulverized coal is regarded as a new technology with great potential due to its advantages reducing NO x emission and improving the uniformity heat flux in furnace. Increasing jet velocity has been proved be an important technical means achieve MILD oxy-coal combustion, especially without high level preheat, but transition mechanism modes increase not clear enough. In this work, high-velocity coal-laden system on basis flat-flame...

10.1021/acsomega.2c07709 article EN cc-by-nc-nd ACS Omega 2023-03-20

Abstract Thermally activated delayed fluorescent (TADF) emitters are promising for the next generation organic light-emitting diodes (OLEDs), yet their efficiency and stability still cannot meet requirements commercialization. Here, we establish a design rule highly efficient stable TADF by introducing an auxiliary acceptor to delocalize electron distributions, not only enhancing molecular in negative polaron state but also accelerating triplet-to-singlet up-conversion singlet radiative...

10.21203/rs.3.rs-4025018/v1 preprint EN cc-by Research Square (Research Square) 2024-03-12
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