National University of Singapore

Barbaros Oezyilmaz

Jonghak Lee

Antonio Helio Castro Neto

Chee Tat Toh

Cagdas Cetin

Yong Kang Ong

Xiao Feng Lim

Henrik Andersen

Giorgia Pastorin

Irfan Haider Abidi

Guang Xin Ni

Andreas Volker Stier

Yi Zheng

Clarissa Chui Ling Wong

Arunabha Ghosh

Srinivasan Natarajan

A seed layer for inducing nucleation to form a layer of material is described. In an embodiment, the seed layer comprising a layer of two-dimensional monolayer amorphous material having a disordered atomic structure adapted to create localised electronic states to form electric potential wells for bonding adatoms to a surface of the seed layer via van der Waals interaction to form the layer of material, wherein each of the electric potential wells has a potential energy larger in magnitude than surrounding thermal energy to capture adatoms on the surface of the seed layer. Embodiments in relation to a method for forming the seed layer, a heterostructure comprising the seed layer, a method for forming the heterostructure comprising the seed layer, a device comprising the heterostructure and a method of enhancing vdW interaction between adatoms and a surface of the seed layer are also described.

Seed layer, a heterostructure comprising the seed layer and a method of forming a layer of material using the seed layer

A monolithic carbon foam formed of fused onion-like carbon (OLC) nanoparticles, in which the monolithic carbon foam contains interconnected pores, has a volumetric micropore surface area of 200 m/cc-600 m/cc, and has an electrical conductivity of 20 cm-140 S/cm. Also disclosed are a fractal carbon foam prepared from the monolithic carbon foam, methods of preparing both foams, and supercapacitors constructed therefrom. Specifically, the methods of preparing the foams comprising, inter alia, spark plasma sintering the OLC nanoparticles at a pressure of 30 MPa-1000 MPa and a temperature of 300° C.-800° C. for 2 seconds-30 minutes.

Monolithic and fractal carbon foams and methods of preparing and using same

A monolithic carbon foam formed of fused onion-like carbon (OLC) nanoparticles, in which the monolithic carbon foam contains interconnected pores, has a volumetric micropore surface area of 200 m/cc-600 m/cc, and has an electrical conductivity of 20 s/cm-140 s/cm. Also disclosed are electrodes and energy storage devices constructed therefrom.

A method of protecting a magnetic layer of a magnetic recording medium is provided to reduce the thickness of the magnetic spacing while improving corrosion resistance and tribological performance of the magnetic recording medium.

Method of protecting a magnetic layer of a magnetic recording medium

The invention relates to methods for directing differentiation of stem cells comprising graphene. In additional embodiments, the invention relates to methods for repairing and improving bone tissue functions comprising accelerating differentiation in stem cell growth by exposing stem cells to graphene and transplanting the graphene with the exposed stem cells in the tissue at the site of repair.

Method for controlling differentiation of stem cells using graphene substrates

Hot pressing hollow carbon nanoparticles results in a nano-carbon foam that can be used for energy storage, carbon dioxide capture or water desalination.

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Singapore, Singapore

Barbaros Oezyilmaz