Challenges and opportunities:•The paramagnetic zero-valent species, middle-size clusters, heavier group 13 congeners are untrodden.•Investigation of the ability species to transfer elemental fragments En(0) other substrates remains underdeveloped.•A stepwise catenation aimed at a precise construction main-group allotropes could offer an exciting new avenue for materials science. This perspectiv...

We propose to exploit the natural mechanical instability of thin solid films form regular patterns monocrystalline atomically smooth silicon and germanium nanostructures that cannot be realized with conventional methods. The solid-state dewetting dynamics is guided by pre-patterning sample a combination electron-beam lithography reactive-ion etching, obtaining precise control over number, size,...

This paper shows the attempt to increase performance of triple-junction hydrogenated silicon solar cells with structure nc-Si:H/a-Si:H/a-SiGe:H. The wxAMPS software was used simulate and optimize design. In an performance, a-SiC:H layer on p-layer replaced a-Si:H a-SiGe a step graded Si1-xGex layer. Then, achieve best performing device, we optimized concentration germanium thickness result that...