About

Hongbin Wang, PhD, is a faculty member at Texas A&M University Naresh K. Vashisht College of Medicine. The page does not provide specific details about his research focus, background, or key contributions. Therefore, no further biographical information is available from the provided content.

Research topics

• Materials science
• Computer Science
• Optoelectronics
• Nanotechnology
• Chemistry
• Electronic engineering
• Optics
• Physical chemistry
• Metallurgy
• Nuclear chemistry
• Composite material
• Organic chemistry
• Chemical engineering

Selected publications

• Rapid Upcycling of Waste Polyethylene Terephthalate to Energy Storing Disodium Terephthalate Flowers with DFT Calculations

  ACS Sustainable Chemistry & Engineering · 2020 · 62 citations

  • Materials science
  • Chemical engineering
  • Nuclear chemistry

  In this work, we report an efficient synthesis approach of disodium terephthalate and its application as a potential battery anode material. Disodium terephthalate is upcycled from waste polyethylene terephthalate flakes with the aid of an ultrafast microwave irradiation process within 2 minutes. The phase and chemical purity of the as-synthesized disodium terephthalate is confirmed by X-ray diffraction, Fourier-transform infrared spectroscopy, and nuclear magnetic resonance spectroscopy. The electrochemical behavior of this low-cost, environmentally benign organic molecular compound is studied in Li- and Na-ion cells. The density functional theory-based calculations are performed to get insights into specifics of electronic properties of Li- and Na-ion cells and rationalize the differences in behavior for the two systems. The delithiation potential of a disodium terephthalate anode is found to be approximately 0.65 V higher than the desodiation potential. The disodium terephthalate-carbon black (Super P) composite electrode delivers discharge capacities of 182 and 224 mAh g–1 at a current density of 25 mA g–1 after 50 cycles in Li-ion and Na-ion cells, respectively. The better C-rate performance of the composite anode for a Li-ion cell, as compared to a Na-ion cell, is due to inferior mobility of Na-ions in the electrode material, which is largely defined by ion size.

  PublisherDOI

• Real-time in situ optical tracking of oxygen vacancy migration in memristors

  Nature Electronics · 2020 · 93 citations

  • Computer Science
  • Materials science
  • Optoelectronics
  DOI

• Couplings of Polarization with Interfacial Deep Trap and Schottky Interface Controlled Ferroelectric Memristive Switching

  Advanced Functional Materials · 2020 · 97 citations

  • Computer Science
  • Materials science
  • Optoelectronics

  Abstract Memristors with excellent scalability have the potential to revolutionize not only the field of information storage but also neuromorphic computing. Conventional metal oxides are widely used as resistive switching materials in memristors. Interface‐type memristors based on ferroelectric materials are emerging as alternatives in the development of high‐performance memory devices. A clear understanding of the switching mechanisms in this type of memristors, however, is still in its early stages. By comparing the bipolar switching in different systems, it is found that the switchable diode effect in ferroelectric memristors is controlled by polarization modulated Schottky barrier height and polarization coupled interfacial deep states trapping/detrapping. Using semiconductor theories with consideration of polarization effects, a phenomenological theory is developed to explain the current–voltage behavior at the metal/ferroelectric interface. These findings reveal the critical role of the interaction among polarization charges, interfacial defects, and Schottky interface in controlling ferroelectric resistive switching and offer the guidance to design ferroelectric memristors with enhanced performance.

  DOI

• Metal-Free Oxide-Nitride Heterostructure as a Tunable Hyperbolic Metamaterial Platform

  Nano Letters · 2020 · 57 citations

  Senior authorCorresponding
  • Materials science
  • Optoelectronics
  • Nanotechnology

  Metal-free plasmonic metamaterials with wide-range tunable optical properties are highly desired for various components in future integrated optical devices. Designing a ceramic-ceramic hybrid metamaterial has been theoretically proposed as a solution to this critical optical material demand. However, the processing of such all-ceramic metamaterials is challenging due to difficulties in integrating two very dissimilar ceramic phases as one hybrid system. In this work, an oxide-nitride hybrid metamaterial combining two highly dissimilar ceramic phases, i.e., semiconducting weak ferromagnetic NiO nanorods and conductive plasmonic TiN matrix, has been successfully integrated as a unique vertically aligned nanocomposite form. Highly anisotropic optical properties such as hyperbolic dispersions and strong magneto-optical coupling have been demonstrated under room temperature. The novel functionalities presented show the strong potentials of this new ceramic-ceramic hybrid thin film platform and its future applications in next-generation nanophotonics and magneto-optical integrated devices without the lossy metallic components.

  DOI

Recent grants

• Materials Discovery through Novel Nanocomposite Design

  NSF · $284k · 2014–2016

• Collaborative Research: ECCS-EPSRC: Development of uniform, low power, high density resistive memory by vertical interface and defect design

  NSF · $250k · 2019–2023

• From Atomic Scale Strain Probing to Smart 3D Interface Design

  NSF · $722k · 2016–2022

• DMREF: Magneto-electro-optically coupled hybrid metamaterial thin film platform for photonic integrated circuits

  NSF · $2.0M · 2023–2027

• CAREER: Novel Ceramic Nanocomposites with Smart Interface Design

  NSF · $400k · 2009–2016

Frequent coauthors

• X. Zhang

  Purdue University West Lafayette

  368 shared

• Q. X. Jia

  280 shared

• Judith L. MacManus‐Driscoll

  University of Cambridge

  238 shared

• Aiping Chen

  Center for Integrated Nanotechnologies

  187 shared

• Jie Jian

  Chongqing Medical University

  158 shared

• Jijie Huang

  Sun Yat-sen University

  140 shared

• Di Zhang

  Purdue University West Lafayette

  111 shared

• Wenrui Zhang

  110 shared

Education

• Ph.D., MSEN

  North Carolina State University

  2002

Similar researchers at Texas A&M University

• Stephen Safeh-131
• Raymond Carrollh-119
• Fuller Bazerh-114
• Renyi Zhangh-106
• Kim Dunbarh-103