Context. The chemical pathways linking the small organic molecules commonly observed in molecular clouds to large, complex, polycyclic species long suspected of being carriers ubiquitous unidentified infrared emission bands remain unclear. Aims. To investigate whether formation mono- and cold cores could form via bottom-up reaction carbon-chain with, for example, atomic hydrogen, a search is ma...

ZnO thin films are deposited by atomic layer deposition (ALD) using diethylzinc as the Zn source and H2O H2O2 oxygen sources. The oxidant- temperature-dependent electrical properties growth characteristics systematically investigated. Materials analysis results suggest that provides an oxygen-rich environment so vacancies (VO) is suppressed, implying a lower carrier concentration higher resisti...

Context. The Rosetta and Giotto missions investigated the composition of cometary comae 67P/Churyumov-Gerasimenko 1P/Halley, respectively. In both cases, a surprisingly large amount molecular oxygen (O 2 ) was detected well correlated with observed abundances H O. Laboratory experiments simulating chemical processing for various astronomical environments already showed that formation solid stat...

While editing this week’s cover story on the electrolyzers needed for clean hydrogen production, I couldn’t help wondering if producing H 2 really makes sense a national scale (page 24). The idea is to run low-carbon electricity through that split water into and oxygen. can then be stored used as fuel or raw material in place of oil natural gas. It’s nice idea, one already being carried out lim...

Quasi-bound resonances of H$_2$ are produced via two-photon photolysis H$_2$S molecules as reactive intermediates or transition states, and detected before decay the parent molecule into three separate atoms. As was previously reported [K.F. Lai et al., Phys. Rev. Lett. 127, 183001 (2021)] four centrifugally bound quantum with lifetimes multiple $\mu$s, lying energetically above dissociation li...

Sustained H 2 photoproduction by green alga Chlamydomonas reinhardtii is achieved under pulse-illumination superimposed on continuous low background light. Pulse-illuminated algae act as biocatalysts producing via direct water biophotolysis.

Recently non-thermal plasma (NTP) is applied for many therapeutic applications. By NTP irradiating to the tissues or cell-lines, the water molecules (H2O) would be also activated leading to generate hydrogen peroxide (H2O2). By irradiating plasma to bio-solution, its main output including vacuum UV to UV causes the photolysis of H2O leading to generat...