Although the work function of graphene under a given metal electrode is critical information for realization high-performance graphene-based electronic devices, relatively little relevant research has been carried out to date. In this work, values various metals are accurately measured first time through detailed analysis capacitance-voltage (C-V) characteristics metal-graphene-oxide-semiconductor (MGOS) capacitor structure. contrast high exposed 4.89-5.16 eV, varies depending on species....

We report an efficient and highly enantioselective hydroboration of aliphatic 1,1-disubstituted alkenes with pinacolborane using a phosphine-Cu catalyst. The method allows facile preparation enantiomerically enriched β-chiral alkyl pinacolboronates from range high enantioselectivity up to 99% ee. Unprecedented enantiodiscrimination between the geminal substituents was observed functional group compatibility in hydroboration. Furthermore, catalyst loading as low 1 mol % furnished desired...

We report an alternative approach to lower contact resistance and extend charge transfer length by forming graphene antidot arrays under metal electrode introduce edge of graphene. The resistivity ∼2.2 × 10−9 Ω·cm2 is experimentally estimated, based on the experiment one-dimensional equivalent circuit model, result agrees well with previous theoretical report. proposed module structure can open ways overcome poor performance current crowding effect at metal-graphene contact.

The properties of micromechanically exfoliated graphene on different oxide dielectrics--SiO(2), Al(2)O(3), and HfO(2)--are investigated by Raman spectroscopy AFM measurement. pristine has stronger adhesion a higher hole concentration when the dielectric constant underlying is higher. It found that annealing under high vacuum significantly enhances between oxides causes shift G 2D bands to wavelength. also an increase in carrier up ten times with corresponding Fermi level approximately 0.65...

We demonstrate that the use of a monolayer graphene as gate electrode on top high-κ dielectric eliminates mechanical-stress-induced-gate degradation, resulting in quantum leap reliability. The high work function hole-doped also helps reduce mechanical tunneling current from electrode. This concept is applied to nonvolatile Flash memory devices, whose performance critically affected by quality dielectric. Charge-trap flash (CTF) with shows superior data retention and program/erase CTF devices...

The large synthesis of graphene films by chemical vapor deposition (CVD) is expected to enable various applications. However, the transfer process from metal dielectric substrate becomes a practical limitation in CVD method because and mechanical stresses. In this paper, we have studied critical factor degradation thereby improve electrical performance CVD. It has been found that O=C–OH bonding related mobility doping effect. removal improves carrier 30%.

The nephrotoxicity of bortezomib, a proteasome inhibitor, has not yet been elucidated, although tumor lysis syndrome (TLS) associated with multiple myeloma (MM) reported to increase after introduction the drug. This study compared incidence and risk factors for acute kidney injury (AKI) TLS in patients MM bortezomib-based chemotherapy investigate drug-related nephrotoxicity.From 2006 2017, 276 who underwent first cycle were identified single tertiary hospital. Laboratory was defined...

Understanding of the contact between graphene and metal is a key issue to improve device performance. We extend previous finding work function pinning monolayer under various metals multilayer discover that can be tuned from 4.3 eV 5.1 by controlling number layers. The found gradually shift with layers four successfully screen this shift. These findings provide an alternative approach control electrodes.

Abstract Graphene devices for radio frequency (RF) applications are of great interest due to their excellent carrier mobility and saturation velocity. However, the insufficient current in graphene field effect transistors (FETs) is a barrier preventing enhancements maximum oscillation voltage gain, both which should be improved RF transistors. Achieving high output resistance therefore crucial step utilized applications. In present study, we report resistances gains graphene-on-silicon (GoS)...

We report a copper-catalyzed enantioselective hydroboration of α,β-unsaturated aldehydes with pinacolborane. α,β-Unsaturated were converted to the corresponding γ-pinacolboronate alcohols in good yields and enantioselectivities through consecutive C═O C═C bonds. This process provides simple access hydroborated product allylic alcohols, resulting could be utilized various transformations.

We demonstrate for the first time that high-k gate dielectric reliability is dramatically improved by replacing metal electrode with graphene electrode. The atomic-scale thickness and flexible nature of completely eliminate mechanical stress in dielectric, resulting significant reduction trap generation film. Almost all electrical properties related to MOSFET such as PBTI, TDDB, leakage current, etc are significantly improved. Data retention program/erase charge Flash memory also greatly

Background: Immune cells regulate organ repair from ischemia-reperfusion injury (IRI), which affects outcomes after deceased donor transplantation.With a rising number of organs elderly donors, there is an increasing recognition senescence immune response, but it less clear in kidney transplantation.We hypothesized that responses IRI are affected by aging.Methods: Renal surgery with 45 minutes unilateral ischemia was performed C57BL/6 mice three different age groups (7 weeks, 6 months, and...

Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Seung Min Song, Byung Jin Cho; Dependence of Graphene Properties on Dielectric Under‐layers. AIP Conference Proceedings 23 December 2011; 1399 (1): 777–778. https://doi.org/10.1063/1.3666607 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar...