20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Synthesis and Characterization of Cu${}_{2-x}$Te Quantum Dot on ZnO Nanoparticles

21 May 2015, 08:30
15m
Phokeethra Grand Ballroom ()

Phokeethra Grand Ballroom

Oral presentation Material Physics, Nanoscale Physics and Nanotechnology Material Physics, Nanoscale Physics and Nanotechnology

Speaker

Mr Aram Boonti (Department of Physics, Faculty of Science,Chiang Mai University, Chiang Mai, THAILAND 50200)

Description

It has been shown that semiconducting materials with particle size comparable to exciton Bohr radius, called “quantum dot,” exhibit distinct physical property referring to their bulk. This leads to various applications in computing, biology, solar cell, light emitting, and photodetector. In this work, we synthesized quantum dots of copper telluride on films of zinc oxide using successive ionic layer absorption technique at low temperature. The quantum dots were characterized by transmission electron microscope, scanning electron microscope, x-ray diffractometer, and UV-Vis spectroscope for particle size, morphology, crystal phase, and optical property, respectively. The results showed that the quantum dots were orthorhombic of Cu${}_{1.44}$Te with the average particle size of 5 nm. The growth mechanism of quantum dot will be explained.

Primary author

Mr Aram Boonti (Department of Physics, Faculty of Science,Chiang Mai University, Chiang Mai, THAILAND 50200)

Co-authors

Dr Atcharawon GARDCHAREON (Department of Physics, Faculty of Science,Chiang Mai University, Chiang Mai, THAILAND 50200) Dr Duangmanee WONGRATANAPHISAN (Department of Physics, Faculty of Science,Chiang Mai University, Chiang Mai, THAILAND 50200) Dr Pipat Ruankham (Department of Physics, Faculty of Science,Chiang Mai University, Chiang Mai, THAILAND 50200) Dr Supab Choopun (Department of Physics, Faculty of Science,Chiang Mai University, Chiang Mai, THAILAND 50200) Dr Surachet Phadungdhitidhada (Department of Physics, Faculty of Science,Chiang Mai University, Chiang Mai, THAILAND 50200)

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