Jedsada Manyam
(NANOTEC, National Science and Technology Development Agency, Pathumthani, THAILAND 12120)
20/05/2015, 14:00
Condensed Matter Physics
Oral presentation
Point defects in ZnO play importance roles in chemical, optical and electrical properties of the material. Capability of manipulating the defects could lead to material engineering and benefit the field of ZnO based sensor, catalyst and optoelectronics. Here we examined redistribution of charge point defects in hydrothermally grown ZnO single crystal under the influence of external electric...
Mr
Komsilp Kotmool
(Department of Physics, Mahidol Wittayanusorn School, Nakhon Pathom, Thailand 73170; Department of Physics, Faculty of Science, Chulalongkorn University, Bangkok, Thailand 10330)
20/05/2015, 14:15
Condensed Matter Physics
Oral presentation
First principles–based electronic structure calculations of superhard iron tetraboride (FeB$_4$) under high pressure have been undertaken in this study. Starting with a “conventional” superconducting phase of this material under high pressure leads to an unexpected phase transition toward a semiconducting one. This transition occurred at 53.7 GPa, and this pressure acts as a demarcation...
Mr
Chirayu Sainamthip
(Mahidol Wittayanusorn School, Nakhon Pathom 73170, Thailand)
20/05/2015, 14:30
Condensed Matter Physics
Oral presentation
Lanthanide-monophosphate materials have been used in many applications, such as scintillators for detecting radiation and inorganic fluorescent labels. In this work, high-pressure phase transitions of XP (X = La, Ce, Pr, and Nd) have been undertaken. Based on density functional theory (DFT), the energetic stability of XP materials were investigated to verify the most stable structures at...
42.
Hydrogen adsorption of Ti decorations in Mg-Metal Organic Framework-74: A First-Principles Study
Ms
Pitphichaya SUKSAENGRAT
(Department of Physics, Faculty of science, Khon Kaen University, Khon Kaen, THAILAND 40002)
20/05/2015, 14:45
Condensed Matter Physics
Oral presentation
Metal-Organic Frameworks show to be one of the most promising materials for hydrogen storage materials owing to containing lots of hydrogen trapping sites, tunable pore size and cheap to produce. However, the hydrogen adsorption energy of these materials is very low. In the present work, we functionalized Ti on the surface of Mg-Metal Organic Framework-74 (Mg-MOF-74) in order to enhance the...
Ms
Kamonrat Kasornmala
(Materials Science and Nanotechnology Program, Faculty of science, Khon Kaen University, 40002 Khon Kaen, Thailand)
20/05/2015, 15:00
Condensed Matter Physics
Oral presentation
This project deals with the calculation of adsorption energies of carbon dioxide adsorbed on single-walled carbon nanotube with three different radii, namely 1.35, 2.71 and 4.07 Å by using the Density Functional Theory. Our results revealed that carbon dioxide molecule prefers to bind on single-walled carbon nanotubes with the molecular axis parallel to carbon nanotubes surface....
Mr
Titipong Phoopathong
(Theoretical Condensed Matter Physics Research Unit, Department of Physics, Faculty of Science, Mahasarakham University, THAILAND 44150)
20/05/2015, 15:15
Condensed Matter Physics
Oral presentation
Stability diagrams are a powerful tool for both analysis and design of single electron devices. These diagrams generally show stable regions and also state-transition lines. This tool has become useful for the investigation on the tunneling process within the devices. In this work, the procedure to build a stability diagram of the single electron transistor has therefore presented. The...
