A5109929766- Graphene research and applications
- Graphene and Nanomaterials Applications
- Diamond and Carbon-based Materials Research
- Carbon Nanotubes in Composites
- Ga2O3 and related materials
- Thermal properties of materials
- Retinal Diseases and Treatments
- Retinal Imaging and Analysis
- Histone Deacetylase Inhibitors Research
- Education and Critical Thinking Development
- Viral gastroenteritis research and epidemiology
- Phenothiazines and Benzothiazines Synthesis and Activities
- Educational Technology and Pedagogy
- Synthesis and Catalytic Reactions
- Risk Management in Financial Firms
- Synthesis of β-Lactam Compounds
- 2D Materials and Applications
- Antioxidant Activity and Oxidative Stress
- Boron and Carbon Nanomaterials Research
- Radiation Effects in Electronics
- Ideological and Political Education
- Peptidase Inhibition and Analysis
- MXene and MAX Phase Materials
- Vaccine Coverage and Hesitancy
- Thermal Radiation and Cooling Technologies
University of Chinese Academy of Sciences
2024
Changchun Institute of Optics, Fine Mechanics and Physics
2024
Chinese Academy of Sciences
2010-2024
Harbin Institute of Technology
2021-2022
Frankfurt School of Finance & Management
2022
Tianjin University of Traditional Chinese Medicine
2017
National Laboratory for Superconductivity
2012-2014
Institute of Physics
2012-2014
Beihang University
2011
Merck & Co., Inc., Rahway, NJ, USA (United States)
2010
Emergence of severe acute respiratory syndrome (SARS) from the winter 2002 to spring 2003 has caused a serious threat public health.To evaluate safety and immunogenicity inactivated SARS coronavirus (SARS-CoV) vaccine, 36 subjects received two doses 16 SARS-CoV units (SU) or 32 SU placebo control.On day 42, seroconversion reached 100% for both vaccine groups. On 56, participants in group receiving 91.1% had seroconverted. The geometric mean titre neutralizing antibody peaked 2 weeks after...
Temperature-dependent Raman scattering is performed on unsupported vertical graphene sheets, which are approximate to free without supporting the substrate. Here observed G peak line shift with temperature completely consistent theoretical prediction based first-principles calculation graphene, and our result helpful understand intrinsic anharmonic phonon characteristics of divergence temperature. However, linewidth variation different from prediction. To reveal origins, a simplified Klemens...
Graphene covered SiC powder (GCSP) has been fabricated by well established method of high temperature thermal decomposition SiC. The structural and photocatalystic characteristics the prepared GCSP were investigated compared with that pristine powder. Under UV illumination, more than 100% enhancement in activity is achieved degradation Rhodamine B (Rh B) catalyst possible mechanisms underlining observed results are discussed. suggested as a composite graphene based material great potential...
Two-dimensional (2D) graphene has emerged as an excellent partner for solving the scarcity of ultraviolet photodetectors based on three-dimensional (3D) AlGaN, in which design a 2D graphene/3D AlGaN junction becomes crucial. This study investigates response mechanisms two distinct graphene/AlGaN (Gr-AlGaN) lateral and vertical configurations. For Gr-AlGaN photodetector, photogenerated electrons drifting into p-type channel induce negative photoconductivity persistent photoconductive effect,...
The present study proposes a two-step doping strategy for achieving efficient Mg of h-BN, involving an additional post-annealing treatment. This approach leads to ∼10 8 -fold enhancement in conductivity compared with the as-doped h-BN grown by low-pressure chemical vapor deposition. mechanism large efficiency after was investigated, providing evidence that this treatment not only facilitates nanoparticle decomposition and incorporation atoms into but also restores its lattice defects. p-type...
A scheme of identification scattering mechanisms in epitaxial graphene (EG) on SiC substrate is developed and applied to three EG samples grown (0001), (112¯0), (101¯0) substrates. Hall measurements combined with defect detection technique enable us evaluate the individual contributions carrier scatterings by defects It found that dominant can be due either or defects, dependent orientations. The (112¯0) exhibits a better control over two major achieves highest mobility even high...
We report new Raman features of epitaxial graphene (EG) on Si-face 4H-SiC prepared by pulsed electron irradiation (PEI). With increasing layers, frequencies G and 2D peaks show blue-shifts approach those bulk highly-oriented pyrolytic graphite. It is indicated that the EG slightly tension strained tends to be strain-free. Meanwhile, single Lorentzian line shapes are well fitted SiC(0001) their full widths at half maximum decrease with which indicates multilayer can also contain turbostratic...
Defects in silicon carbide (SiC) substrate are crucial to the properties of epitaxial graphene (EG) grown on it. Here we report effect defects SiC crystalline quality EGs through comparative studies characteristics (0001) substrates with different defect densities. It is found that high possess regular steps surface and there no discernible D peak its Raman spectrum. Conversely, EG a density has strong peak, irregular stepped morphology poor uniformity layer numbers. responsible for lead...
A nonpolar SiC(110) substrate has been used to fabricate epitaxial graphene (EG). Two EGs with layer numbers of 8–10 (referred as MLG) and 2–3 FLG) were representative study the effect on EG through temperature-dependent Raman scattering. It is found that lineshifts G 2D peaks MLG temperature are consistent free graphene, predicted by theory calculation, indicating influence undetectable. While peak FLG obvious, however, its lineshift rate (−0.016 cm−1/K) almost one third (−0.043 an 6H-SiC...
This paper aims to explore and analyze the effect of blended teaching learning model used in college English cultural courses by taking course "Introducing Chinese Culture English" as an example.The brings optimal integration on-line off-line into reality employing state level MOOC (Massive Open Online Course) English", constructing SPOC (Small Private on U-Campus platform, adopting a variety activities classroom.The practice proves that advocates "learner-centered" idea, fits...