Adel Najar

TL;DR: In this paper, the structural and optical properties of porous silicon nanowires (PSiNWs) fabricated using silver ions assisted electroless etching method were investigated and the strongest photoluminescence (PL) signal has been measured from samples etched with 4.8 M of HF, beyond which a significant decreasing in PL emission intensity was observed.

TL;DR: In this paper, high density vertically aligned Porous Silicon NanoWires (PSiNWs) were fabricated on silicon substrate using metal assisted chemical etching process and a linear dependency of nanowire length to the etching time was obtained and the change in the growth rate of the nano-wires by increasing etching durations was shown.

TL;DR: The results show that GaN NPs fabricated using the ultraviolet metal-assisted electroless etching method are promising for tunable-color-temperature white light-emitting diode applications.

TL;DR: In this paper, the fabrication of porous GaN nanostructures using UV-assisted electroless etching of bulk GaN layer grown on c-plane sapphire substrate in a solution consisting of HF:CH3OH:H2O2 was reported.

TL;DR: In this article , the progress of wide-bandgap organic-inorganic hybrid perovskite solar cells (PSCs) is summarized and the issues of phase segregation and voltage loss are assessed, and diverse applications of widebandgap PSCs in semitransparent devices, indoor photovoltaics, and various multijunction tandem devices are discussed and their challenges and perspectives are evaluated.