Research Publications

Academic theses and dissertations are regularly published and widely disseminated in YUOE Journal, Monographs, Universities Research Journal (URJ), Myanmar Academy of Arts and Science (MAAS) Journal, AsTEN Research Journal and International online Journals for sharing knowledge and contributing to the development of our education.

Myanmar Academy of Art & Science List of Research

No. Researcher Title Abstract Year
761 May Thu Aung COMPARATIVE STUDY ON PHOTOVOLTAIC BEHAVIOR IN ORGANIC- INORGANIC HYBRID PHOTOVOLTAIC CELLS OF SI AND FTO SUBSTRATES Organic Inorganic hybrid Photovoltaic cells were fabricated by using Polyaniline (PANI) nanofibers and semiconducting oxide (BSO). PANI-BSO hybrid polymeric blend were coated on two different substrates Si and FTO by using spin coating method. The structure and surface morphology of PANI-BSO/Si film and PANI-BSO/FTO film were characterized by using XRD, SEM, and AFM respectively. UV-vis spectroscopy was carried out to study light absorption behavior of fabricated films. Especially, comparison between photovoltaic properties of fabricated hybrid photovoltaic cells was studied. 2020
762 Nyunt Win DEVELOPMENT OF P(Py-2FPy)/ ZnO COMPOSITE FILMS AND INVESTIGATION OF THEIR ELECTRICAL PROPERTIES Poly (pyrrole-2formyl pyrrole) /zinc oxide, P(Py-2FPy)/ZnO composite film has been developed in this work. The inorganic ZnO nanoparticles were synthesized by room temperature solution method. While the pure copolymer P(Py-2FPy) film was prepared by spin coating through copolymerization, the copolymer composited with ZnO, (P(Py-2FPy)/ZnO) films, were prepared by novel ex-situ copolymerization method. The volumes of ZnO in the copolymer matrices were varied from 0.1, 0.2, 0.3, 0.4 and 0.5 mL. ZnO nanoparticles and the composite film formation were characterized by Ultraviolet visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) analysis. The important parameters of films including dissipation factor and capacitance depending on AC (alternating current) frequencies in the range from 1MHz to10 MHz were measured by LCR meter. The electrical conductivities of pure copolymer film and organic-inorganic composite films were investigated based on their measurements of electrical parameters. It was found out that the composite films were conductive and AC conductivities of composite films increase with increasing the volume of ZnO nanoparticles. 2020
763 Pwint Yee Thein STRUCTURAL PROPERTIES AND NON-LINEAR BEHAVIOR OF Mn DOPED ZnO VARISTORS Mn doped ZnO ceramics are prepared in solid state reaction method and conventional funance annealing process. Mn (2 mol, 4 mol, 6 mol, 8mol & 10mol) are doped into ZnO, and heat treated at 500oC (melting point of Mn is 535oC) for 3 hrs. After pre heat treated at 500oC, samples are heat treated again at 1100oC for 2 hrs. XRD investigations are carried out to determine the structural properties, such as lattice parameters, crystalline size and micro strain of the samples. Mn doped ZnO ceramics are prepared as varistors and non-linear coefficients of varistors are studied. Optical band gaps of the ceramic samples are also determined. 2020
764 Khin Mar Lar Lwin MICROCONTROLLER BASED SECURITY LOCKSYSTEM WITH PASSWORD Microcontroller based security lock system is an access control system that allows only authorized persons. The electronic controlled assembly allows the system to unlock the device with password. This system has a keypad which the password can be entered through it. If the entered password is correct then the word “CORRECT” will display on LCD and the lock opens. If the incorrect password is entered three times then the word “THIEF” will display on LCD and the alarm will ring by producing sound from buzzer. This circuit can be used in bank for security, steel safe and security door lock to secure them against thief. The microcontroller based security lock system is designed and constructed by using major components programmed microcontroller PIC18F452, 4×4 keypad, LCD (Liquid Crystal Display) and abuzzer. 2020
765 Kyauk Khe Sein STUDY ON PROPERTIES OF TiO2-GO BY TERAHERTZ SPECTROSCOPY The terahertz time-domain spectroscopy (THz-TDS) is a noncontact tool to measure the optical and electrical parameters of the nanometrics semiconductors/semimetals. Terahertz electromagnetic waves from 0.1 to 10 THz, bounded between the infrared and microwave regions of the spectrum, has been intensively attracted to explore scientific and engineering phenomena for the materials. Terahertz time domain spectroscopy (THz TDS) is a powerful tool for both, to characterize the free carrier response of graphene and probe the inter and intraband response of excited carriers with sub-ps (pico second) time resolution. This work presents application of noncontact THz-TDS techniques and analysis for the terahertz properties of TiO2-GO in the new generation of optoelectronic devices. 2020
766 Sandar Kyaw DETERMINATION THEEFFICIENCY OF SOLAR CELL DERIVED FROM POINSETTIA DYE EXTRACTION In this research, the natural dyes, Poinsettia leaves were used as photosensitizer. These dyes were measured with ethanol solvent at different temperatures (25 ?C,45 ?C,65 ?C). The absorbance and energy levels of the dye solution were characterized using UV-Vis Spectroscopy measurement. XRD measurement was used to know the purification and structural properties of TiO2 powder. The sandwich structure of DSSC consisted of TiO2as photo electrode, carbon layer as counter electrode, poinsettia as photosensitizer and electrolyte as electron transfer media. The efficiencies of DSSC were calculated by using I-V measurement. 2020
767 Sabal Phyu Thein MICROCONTROLLER BASED AUTOMATIC DOOR OPENING AND LIQUID PETROLEUM GAS DETECTING SYSTEM The purpose of the current research is to construct “Automatic Door Opening and Liquid Petroleum Gas Detecting System”. The design is based on an Arduino Uno board, PIR (passive infrared) motion sensor, L298N motor driver, CD tray with 5V DC motor, Gas sensor MQ3, 0.96 I2C LCD driver and jumper wires. The PIR sensor is used to open and close the door automatically. The MQ3 sensor is used as liquid petroleum gas detecting system because it is suitable for detecting alcohol, benzine, CH4, hexane, LPG and CO. The Arduino UNO board is used to control all sensors’ operation and gives an output. The controlled program is written in C programming language. The system can also be expanded with an inductive detector for metal detection purpose of security. 2020
768 Wah Wah Myint DESIGN AND IMPLEMENTATION OF MICROCONTROLLER BASED MUSIC REACTIVELED CUBE A music reactive LED cube is constructed by Arduino Microcontroller ATmega328P. The components used in this system are Arduino Uno Board, 512 LEDs, npn-transistors (2N2222), 74HC595 ICs, speaker, some resistors. The LEDs are designed into 8×8×8 cube which contains eight rows and eight columns. The output of the system shows various pattern designs of LEDs and also produces melody sound. The controlled program source code is written in C programming language. The error free source code is uploaded to the A Tmega 328P microcontroller and it controls the operation of the whole system. This system can be used for altar decoration, house and advertisement decoration. 2020
769 Nyo Nyo Myint STUDY ON TEMPERATURE DEPENDENCE SUPERIONIC CONDUCTIVITY OF SOLID ELECTROLYTE LITHIUM-COBALTNICKEL OXIDES Superionic conductors or solid electrolyte materials are mainly useful in batteries and various sensors. In the present work, Lithium-Cobalt-Nickel Oxide, LiCo1-xNixO2, (where x = 0.00 – 1.00 with the step of 0.25) were prepared by solid state reaction method. Lithium Hydroxide Monohydrate (LiOH.H2O), Cobalt Oxide (CoO) and Nickel Oxide (NiO) with desired stoichiometric compositions were used as the starting materials. X-ray diffraction (XRD) patterns indicated that the samples belong to hexagonal structure from the observed diffractograms were compared with the JCPDS data. To confirm the phase formation of the samples, Fourier Transform Infrared (FTIR) spectroscopic method was used to analyze the vibrational characteristics. Temperature dependence electrical conductivities of the samples were investigated in the temperature range of 303 K – 773 K. It was found that the samples exhibited as the superionic conductors in the high temperature. 2020
770 Tin Tin Myint EXPERIMENTAL INVESTIGATION ON THE IMPROVEMENT OF MECHANICAL PROPERTIES OF CLAY BRICK USING CORYPHA FIBRES The currently used local bricks from Hmawzar Acient City, Pyay distinct, Bago division, were determined their compressive strengths. EDXRF,XRD techniques were used for the quality of earthling. In order to obtain the desired bricks, layers of coryphe fibres were inserted inside the bricks with distinct positions. Then the newly created bricks were used to investigate their mechanical properties such as compressive strength and density by using universal testing machine. This research work is intended to be able to use the qualitative bricks for the benefit of construction sites. 2020