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Semiconductor and Optical Materials Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
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- Adhesion; Anti-fog; Durability; Optical transparency; Self-cleaning (1)
- Conduction charge mechanism (1)
- Dynamic range (1)
- Gallium Nitride; M-plane sapphire; MOCVD; In-situ defect reduction technique; UV-photodetector (1)
- Glass substrate (1)
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- Gold-silver (1)
- Humidity (1)
- Nanoparticles (1)
- Nanorods (1)
- Poole-Frenkel Emission (1)
- Rare earth material; Polymer coating; Down-conversion; Hydrophobic; PV panel (1)
- Schottky Emission (1)
- Seed colloidal techniques (1)
- Silicon Carbide (SiC) (1)
- Ultraviolet-visible spectroscopy (1)
- Zinc oxide (1)
- Zirconium Oxynitride (ZrON) (1)
Articles 1 - 6 of 6
Full-Text Articles in Semiconductor and Optical Materials
Development Of Hybrid Self-Cleaning Coating Using Lanthanide-Based Light Spectral Response Material To Enhance Photovoltaic (Pv) Panel Efficiency In Operational Environment, Khishn Kumar Kandiah
Development Of Hybrid Self-Cleaning Coating Using Lanthanide-Based Light Spectral Response Material To Enhance Photovoltaic (Pv) Panel Efficiency In Operational Environment, Khishn Kumar Kandiah
Student Works (2020-2029)
The efficiency of photovoltaic (PV) panels is crucial, as solar energy has become an alternative energy source that meets today’s global energy demands. Hence, dust accumulation and spectral mismatch have major effects on the efficiency of PV panels, around 20 %, but in extreme situations, this can reach up to 64 %. Therefore, initiatives are underway to address these issues, including PV cooling systems, conventional cleaning methods, and various coatings to enhance efficiency. In this work, a novel coating is fabricated with high transparency, excellent self-cleaning properties, and good spectral-modifying properties. Two types of powder composites are employed in this …
Epitaxial Growth Of Semi-Polar (11-22) Gallium Nitride For Uv Photosensing Application, Abdullah Haaziq Ahmad Makinudin
Epitaxial Growth Of Semi-Polar (11-22) Gallium Nitride For Uv Photosensing Application, Abdullah Haaziq Ahmad Makinudin
Student Works (2020-2029)
Semi-polar (11-22) gallium nitride (GaN) epilayers have attracted numerous interests in GaN based technology as it possess significant advantages over its polar (c-plane) counterparts such as low to none spontaneous and piezoelectric polarization which is known to impair the device performance. However, growth along semi-polar (11-22) orientation has been known to exhibit numerous defect densities such as dislocations and stacking faults (SFs). In order to acquire high quality semi-polar (11-22) GaN epilayers, various growth optimizations must be employed. In this work, the semi-polar (11-22) GaN epilayers were grown on planar m-plane sapphire substrate with the use of a 2-inch capability …
Schottky And Poole-Frenkel Conduction Mechanisms In Zron/Sic System, Lusus Vanessa
Schottky And Poole-Frenkel Conduction Mechanisms In Zron/Sic System, Lusus Vanessa
Student Works (2020-2029)
In this work, the conduction mechanisms of Schottky Emission (SE) and Poole–Frenkel (PF) Emission for the ZrON/SiC system with a temperature range between 400 oC to 900 oC were analyzed. Understanding of the conduction charge mechanisms will help to estimate leakage characteristics of the ZrON/SiC system. Based on the J-E plot measured at different temperatures for 15 minutes, the obtained r2 was ranged between 0.90–0.98, which confirmed the data obtained complied with the standard SE model. Furthermore, the data plotted from the Effective Barrier Height Extracted from the SE plot showed the highest values of
Synthesis And Characterization Of Bimetallic Gold-Silver (Au-Ag) Nanocatalyst Via Seed Colloid Technique, Berahim Nurafaliana
Synthesis And Characterization Of Bimetallic Gold-Silver (Au-Ag) Nanocatalyst Via Seed Colloid Technique, Berahim Nurafaliana
Student Works (2020-2029)
In the present study, unique catalysts of monometallic gold (Au), silver (Ag) and bimetallic gold-silver (Au-Ag) nanoparticles (NPs) were prepared with different size or diameters by the citrate-thermal reduction and the seed colloidal techniques, respectively. The catalytic nanoparticles were characterized by various advanced analytical techniques such as Ultraviolet-visible spectroscopy (UV-vis), zeta potential, electron dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), High-angle annular dark-field (HAADF) scanning transmission-electron microscopy (STEM) imaging and the energy dispersive spectroscopy (EDS) elemental mapping. The catalytic performance of the nanoparticles were ascertained through the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in …
Synthesis And Characterization Of Self-Cleaning Hydrophobic Organic Coating, Abdul Jaafar Amirul Syafiq
Synthesis And Characterization Of Self-Cleaning Hydrophobic Organic Coating, Abdul Jaafar Amirul Syafiq
Student Works (2020-2029)
Three self-cleaning coating systems namely Polydimethylsiloxane (PDMS)/Sylgard, PDMS/3-Aminopropyltriethoxysilane (APTES) (tagged as A1) and A1 blended with nano-Calcium Carbonate (CaCO3) have been synthesised on glass substrates via dip-coating and spray-coating techniques. All of the prepared coatings were dried under ambient condition before being subjected to characterisations and testing(s). The effect of various weight percentages of Sylgard resin that are 5wt.% (S1 coating), 10wt.% (S2 coating), 15wt.% (S3 coating), and 20 wt.% (S4 coating) on the hydrophobicity, self-cleaning property, anti-fog performance and mechanical property of PDMS/Sylgard coating have been discussed in the first section of this thesis. The PDMS/Sylgard coated glass substrates …
Development Of Integrated Zinc Oxide Nanorods Coated Glass Substrate Sensing Device, Mohd Yusof Haziezol Helmi
Development Of Integrated Zinc Oxide Nanorods Coated Glass Substrate Sensing Device, Mohd Yusof Haziezol Helmi
Student Works (2020-2029)
A simple and practical cost-effective integrated zinc oxide (ZnO) nanorods coated glass substrate sensing device for humidity and formaldehyde vapor sensing applications is reported. The developed sensor device is composed of a commercial light-emitting diode (LED) and photodiode that correspondingly served as light source and detector which precisely positioned on a 3D printed sensor platform. A receiver circuit and Arduino platform were employed for signal amplification and processing. A uniform ZnO nanorods coating were grown on the surface of glass substrate via hydrothermal method by controlling the growth durations and coating length. A standard reference for the optimum working condition …