School of Engineering Researcher Profiles | Page 26

24MECHANICAL ENGINEERING

24MECHANICAL ENGINEERING

Thermal Management of Microelectronics Systems to improve energy efficiency and lifespan

Dr Hung , Yew Mun Associate Professor PhD
Research expertise : Electronics Cooling , Microscale Heat Transfer , Interfacial Phenomena , Graphene Nanostructures , Ultrafast Water Permeation .
E : hung . yew . mun @ monash . edu T : + 603 5514 6251
This study aims to investigate the effective phase-change heat transfer achieved via surface functionalization using graphene coatings . The fast water transport confined in the nanocapillaries formed between graphene sheets is attributed to the frictionless interaction between the atomically smooth , hydrophobic carbon wall and the well-ordered hydrogen bonds of water molecules . For the sake of achieving high evaporation rate , high surface temperature , large surface area , and low intermolecular strength of molecules are favourable conditions . The graphene coating on the heated surface provides nanocapillaries that distribute the liquid water over the coated surface by promoting filmwise evaporation , giving rise to a larger surface area for evaporation and facilitating a higher evaporation
rate . With the application of GNPs coating , the high-temperature region is eliminated while maintaining the LED surface temperature for optimal operation . The development of grapheneassisted two-phase cooling devices manifests impact on the efficiency and lifespan of microelectronics components and thus the nation ' s economy .
Enhancement of phase-change heat transfer attributed to the ultrafast water permeation property of graphene nanostructures
Significant temperature reduction of LED due to graphene functionalization .

Advanced Nanoscale Materials : Fundamentals and Applications

Dr Varghese Swamy Associate Professor PhD , CEng ( IMechE )
Research expertise : Nanoscale Advanced Materials , Nanoscale Properties . Bioand Device Applications , and Computational Modelling
E : varghese . swamy @ monash . edu T : + 603 5514 6245
Our current research focuses on the fundamental properties and applications of advanced materials , especially nanoscale materials . We explore the fundamental structural and physical properties of nanostructured carbon , silicon , metal oxides , 2-dimensional materials , and hybrid metalorganic materials using laboratorybased and synchrotron-based tools ( diffraction , vibrational spectroscopy , optical spectroscopy ) and atomistic or quantum mechanical computations . Recent and ongoing projects : ( 1 ) in situ characterisation of the nanomechanical behaviours ( Malaysia ’ s Ministry of Higher Education FRGS grant supported ), ( 2 ) thermal and mechanical properties of functional materials such as carbon-boron nitride nanosheets and nanotubes ,
borophene , hybrid metalorganic perovskites using molecular dynamics simulations , first principles quantum mechanical calculations and / or in situ experiments , ( 3 ) application of advanced nanomaterials in state-of-the-art solar cells , lightemitting diodes , and sensors , and ( 4 ) fluorescent materials for bioimaging and drug delivery ( FRGS grant supported ). Our chief collaborators include experts from University of Bayreuth ( Germany ), CSIRO ( Australia ), Nanyang Technological University ( Singapore ), Yokohama National University ( Japan ) and University of North Texas ( USA ).
Hybrid metal-organic perovskites for solar cells : stabilization routes
Legumain binding by cocrystal peptide ( blue ), linear peptide ( purple ), and Y-peptide ( green ) for breast cancer bioimaging .
R E S E A R C H E R P R O F I L E 2022 / 2023