报告主题: Study on different dimensional composite materials and its applications
报告时间: 2018.5.20 13:45-14:30
报告人及简介: Dr. Dong Ick Son received the Ph.D. degree in Department of Information Display Engineering from Hanyang University Korea, in 2010. After that, he joined Korea Institute of Science and Technology (KIST) as a star post-doc during 2010-2012. He worked as a visiting researcher in Department of Physics, KU Leuven, Belgium during post-doc period in 2011. Since 2012, he has worked as a senior research scientist in KIST and an Associate Professor at University of Science & Technology (UST). His main research fields are study on optical and electronic devices (nonvolatile organic bistable memory device, light-emitting device, photodetector, and photovoltaic cell) fabricated utilizing hybrid organic/inorganic nanocomposites and study on application devices utilizing hybrid van der Waals 2D materials (including carbon nanomaterials) and inorganic nanoparticles.
报告大纲: Recently, the van der Waals 2D materials (including carbon nanomaterials) has attracted due to numerous investigations into its remarkable physical, chemical, and mechanical properties, opening up a new research area for materials science, chemistry and physics, and including for a diverse ranging and exiting potential applications.To manipulate 0D+2D, 2D+0D+2D hybrid materials using the assembly of low-dimensional nanomaterials of different dimensionalities, such as dichalcogenides (TMDs), hBN and quantum dots (0D), to control the bandgap of the hybridized structures, and to investigate emergent properties of vertically-layered different dimensional composite materials and photoelectronic devices.Here we employ a simple solution method to prepare emissive hybrid quantum dots consisting of metal oxide quantum dots (QDs) core wrapped in a shell of single-layer graphene, and use these QDs to make a white light-emitting diode. The intermediate consolidated quasi-metal oxide-graphene core-shell QD is a kind of newly developed material which will be appropriate for a functional layer acting as an electron transport layer with high mobility in the field of such as DSSC, photovoltaic devices, sensor, lithium ion batteries (LIBs), photodetector, fuel cells, and light emitting diode etc.