Structural, Spectroscopic, Electronic and Optical Properties of Novel Platinum Doped (PMMA/ZrO2) and (PMMA/Al2O3) Nanocomposites for Electronics Devices

• Published in: Transactions on electrical and electronic materials Vol. 21; no. 6; pp. 550 - 563
• Main Authors: Hazim, Angham, Abduljalil, Hayder M., Hashim, Ahmed
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Institute of Electrical and Electronic Material Engineers (KIEEME) 01.12.2020; 한국전기전자재료학회
• Subjects: Chemistry and Materials Science; Electronics and Microelectronics; Instrumentation; Materials Science; Optical and Electronic Materials; Regular Paper; 전기공학; Electronics; Zirconium oxide; PMMA; Pt; Alumina; Optical properties
• ISSN: 1229-7607; 2092-7592
• DOI: 10.1007/s42341-020-00210-2

This work reports a theoretical study to investigate the electronic structure and optimized geometry for pure PMMA and PMMA doped with ZrO 2 , Al 2 O 3 and Pt nanoparticles for electronics devices. The studied structures are initially relaxed by employing the hybrid functional three parameter Lee–Yang–Parr B3LYP density functional theory at Gaussian 09 package of programs and Gaussian view 5.0.8 program. The PMMA is origin molecule before adding nanoparticles, also this work includes calculations of the electronic properties which contain total energy, energy of highest occupied molecular orbital, energy of lowest unoccupied molecular orbital, energy gap, ionization potential, electronic affinity, hardness, softness, electronegativity and electrophilic index. The geometrical optimization of PMMA has been found in good agreement with the experimental data due to its relaxed geometrical parameters. The electronic variables, such as, I E , E A , χ, S, H and ω are computed by the orbital vertical (Koopmans theorem), the nanocomposites studied need small energy to become cation due to ionization potential is smaller than original PMMA, but the electronic affinity are larger than the original PMMA. So, the hardness for nanocomposites was lowering values as compared with PMMA, therefore all the new molecules are softer, and this reduces the resistance of a species to lose electrons, and the total energy of the studied PMMA was decreased with added nanoparticles to the pure PMMA, total energy is a reflection of, binding energy of each sheet. The results showed that the nanoparticles added to PMMA reduces the energy gap. All nanoparticles constructed in this work have energy gap lower than that of original PMMA and the (PMMA–ZrO 2 –Pt) nanocomposites have the lowest value of energy gap. These results refer to construct new structures with new electronic properties to use it for modern electronics fields.