Sam Zhang

ORCID: 0000-0002-0716-1910
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About
Contact & Profiles
Research Areas
  • Metal and Thin Film Mechanics
  • Diamond and Carbon-based Materials Research
  • Semiconductor materials and devices
  • Advanced materials and composites
  • Bone Tissue Engineering Materials
  • ZnO doping and properties
  • Advanced ceramic materials synthesis
  • Temporomandibular Joint Disorders
  • Silicon Nanostructures and Photoluminescence
  • Perovskite Materials and Applications
  • Quantum Dots Synthesis And Properties
  • Dental materials and restorations
  • Electronic and Structural Properties of Oxides
  • High-Temperature Coating Behaviors
  • GaN-based semiconductor devices and materials
  • TiO2 Photocatalysis and Solar Cells
  • Dental Implant Techniques and Outcomes
  • Conducting polymers and applications
  • Gas Sensing Nanomaterials and Sensors
  • Ferroelectric and Piezoelectric Materials
  • High Entropy Alloys Studies
  • Shape Memory Alloy Transformations
  • Aluminum Alloys Composites Properties
  • Advanced Photocatalysis Techniques
  • Acoustic Wave Resonator Technologies

Shanghai Ninth People's Hospital
2015-2025

Shanghai Jiao Tong University
2015-2025

Shandong Normal University
2025

Harbin Institute of Technology
2007-2025

Guizhou Institute of Technology
2025

Anhui University
2019-2025

Nanjing University of Posts and Telecommunications
2025

National Clinical Research Center for Digestive Diseases
2019-2025

Shandong University
2020-2024

Pfizer (United States)
2021-2024

We report the intrinsic room-temperature ferromagnetism in undoped ZnO nanoparticles with different sizes synthesized by a wet chemical method at temperatures. Electron paramagnetic resonance, X-ray photoelectron spectroscopy, and photoluminescence measurements demonstrate clearly singly charged oxygen vacancies are main defects, relative occupancy of that decreases increasing annealing Importantly, direct correlation between concentration is established, which suggests play crucial role...

10.1021/jp3014749 article EN The Journal of Physical Chemistry C 2012-03-27

10.1016/j.surfcoat.2014.07.007 article EN Surface and Coatings Technology 2014-07-08

10.1016/0921-5093(93)90588-6 article EN Materials Science and Engineering A 1993-05-01

A synchronous reduction and assembly strategy is designed to fabricate large-area graphene films patterns with tunable transmittance conductivity. Through an oxidation-reduction reaction between the metal substrate oxide, oxide reduced chemically converted organized into highly ordered in situ. This work will form precedent for industrial-scale production of materials future applications electronics optoelectronics.

10.1002/adma.201300586 article EN Advanced Materials 2013-04-19

A block copolymer with Au nanoparticles is shown to exhibit a memory effect, the acting as floating charge storage components for holes from pentacene in metal–pentacene–insulator–silicon (MPIS) structure (see figure). This novel displays large window of 2.1 V after programming and erasing modes, excellent retention ability. Supporting information this article available on WWW under http://www.wiley-vch.de/contents/jc_2089/2008/adma200702567_s.pdf or author. Please note: The publisher not...

10.1002/adma.200702567 article EN Advanced Materials 2008-05-15

10.1016/s0167-577x(02)01419-2 article EN Materials Letters 2003-01-30

Deposition process of Cr species at the (LSCF) electrode and (GDC) electrolyte system is investigated under reduction conditions in presence a Fe–Cr alloy interconnect for solid oxide fuel cells. preferentially occurs on surface LSCF with without cathodic polarization , forming phase. At initial stage reaction, deposition was not detected inside or electrode/GDC interface. rib substantial comparison to that channel interconnect. The results demonstrate clearly essentially chemical reaction...

10.1149/1.2136077 article EN Journal of The Electrochemical Society 2005-12-21

Although much of the initial progress in perovskite solar cells has been made by archetypal CH3NH3PbI3, incorporation an additional cation such as formamidinium, cesium, and mixed halides have shown promising results both stability device performance. However, role cations well is yet to be fully understood. In this work, we investigate different additives including group I alkali metal (K, Rb, Cs NH4) halide anions (Br I) on double-cation perovskites, i.e., [(MAPbBr3)0.15(FAPbI3)0.85]. A...

10.1021/acs.jpcc.8b00980 article EN The Journal of Physical Chemistry C 2018-03-25
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