Vol.1, Iss.1, December 2021

Abstract

The Applied Functional Materials is a peer-reviewed, open-access journal devoted to publishing research papers in the fields of materials engineering and technology. In a modern technological society, engineers and designers must work together with a variety of other professionals in their quest to find materials solutions to complex problems. Fast advances in material science and technology have broadened the horizons of material science whilst simultaneously creating a multitude of chal...

Abstract

The Sr3La(PO4)3:Eu3+ (SLP:Eu3+) phosphor was prepared with the coprecipitation method, which emited red visible-light along with a near-infrared (NIR) luminescence in the biological window region. The influence of synthesis temperature and Eu3+ doping concentration on the characteristics of the phosphor was discussed. The optimal crystallinity was obtained when the phosphor was doped with 0.7 mol% of Eu3+ and annealed at 1200 °C for 2 h. The particle size was approximately 1 μm. As compared with...

Abstract

We synthesized a novel hybridized perovskite-silica (SiO2) solar cell using an electrospray process under ambient conditions. The Silica scaffold not only provided optical transmission from visible to infrared regions but also blocked the back flow transport of the holes and electrons to reach the electrodes, leading to reduced charge recombination. Moreover, the CH3NH3PbI3 (MAPbI3) film quality can be improved by using the combination of vacuum annealing enhanced crystal growth and the methylam...

Abstract

In this study, electron beam (E-beam) was used to deposit Ga2O3 films on the sapphire (Al2O3) substratest, then Ga2O3 films were divided three groups, unannealed, annealed at 850 oC, and annealed at 950 oC, respectively. After that, three different methods were investigated to find the optical energy bandgap of un-annealed and annealed Ga2O3 films. First was used n&k analyzer to measure all the optical energy bandgaps of un-annealed and annealed Ga2O3 films directly; Second, all the measured tra...

Abstract

Polysilicon wire (PSW) sensor with a sensing membrane of 3-aminopropyltrimethylsiloxan (γ-APTES) incorporated with polydimethylsiloxane (PDMS)-treated silica nanoparticles (NPs) (γ-APTES+NPs nanocomposite) deposited by a focus ion beam (FIB)-milled capillary atomic force microscopy (AFM) tip have been reported to have excellent biochemical sensing characteristics, and improved performance can be achieved after the sensing films being subjected to ultraviolet (UV) light illumination. While most o...

Abstract

Graphene has attracted a lot of attention in gas sensing applications for its high surface area ratio and unique chemical or physical gas adsorption ability. Being an important research method, theoretical calculations play a key role in both illustrating the gas sensing mechanism of graphene and improving the gas sensing performance of graphene-based sensors. This review discusses the application of adsorption isotherm theory and first-principles studies to graphene gas sensors. Different isoth...

Abstract

In this study, we investigated a novel technology to grow the ZnO nanoflower arrays on a patterned sapphire substrate using hydrothermal method. The process to prepare the substrate and grow ZnO nanoflower arrays were that the patterned concave sapphire substrates were cleaned using acetone, isopropyl alcohol, and D.I. water in an ultrasonic cleaner. Al sacrificial layer with the thickness of 600 nm was deposited using a thermal evaporation technology. The sol-gel process was used to deposit the...