Numerous valuable studies on electron dynamics have focussed the extraordinary properties of molybdenum disulfide (MoS2); however, most them were confined to level below damage threshold. Here MoS2 under intense ultrafast laser irradiation was investigated by experiments and simulations. Two kinds ablation mechanisms revealed, which led two distinct types final morphology. At a higher fluence, emergence superheated liquid induced dramatic change in transient reflectivity micro-honeycomb...

Abstract A series of new energetic salts based on 4‐nitro‐3‐(5‐tetrazole)furoxan (HTNF) has been synthesized. All the have fully characterized by nuclear magnetic resonance ( 1 H and 13 C), infrared (IR) spectroscopy, elemental analysis, differential scanning calorimetry (DSC). The crystal structures neutral HTNF 3 ) its ammonium 4 N ‐carbamoylguanidinium 9 determined single‐crystal X‐ray diffraction analysis. densities nine were found to range from 1.63 1.84 g cm −3 . Impact sensitivities...

New polynitro-substituted bispyrazoles were synthesised and fully characterised in this study. Ammonium 4-(4′-amino-3′,5′-dinitro-1′-pyrazol)-3,5-dinitropyrazole (3), 4-(4′-amino-3′,5′-dinitro-1′-pyrazol)-1-amino-3,5-initropyrazole (6), diaminoguanidinium (9), 3,4,5-triamino-1,2,4-triazolium (12) further confirmed using single-crystal X-ray diffraction. The compounds exhibited excellent thermal stabilities, insensitivities high detonation performance. measured LC50 of the suggested that...

Energetic salts based on 4,4′-oxybis[3,3′-(1H-5-tetrazol)]furazan were readily synthesized and fully characterized by NMR (1H, 13C), IR spectroscopy, elemental analysis, differential scanning calorimetry (DSC). Bis(guanidinium) (6), bis(aminoguanidinium) (7), bis(diaminoguanidinium) (8) carbonic dihydrazidinium(HBTFOF)2 (13) further confirmed single-crystal X-ray diffraction. All the exhibit excellent thermal stabilities with decomposition temperatures over range 212–289 °C. The densities of...

Abstract Nitrogen‐rich 3, 4‐bis(1 H ‐tetrazol‐5‐yl)furoxan (H 2 BTF, ) and its energetic salts with excellent thermal stability were successfully synthesized fully characterized by 1 H, 13 C NMR, IR spectroscopy, differential scanning calorimetry (DSC), elemental analyses. Additionally, the structures of barium ( 3 1‐methyl‐3, 4, 5‐triamino‐triazolium 10 confirmed single‐crystal X‐ray diffraction. The densities paired organic cations range between 1.56 1.85 g · cm –3 as measured a gas...

Novel super-highly energetic bis(2,2-dinitroethyl)nitramine-based salts exhibiting excellent physical and detonation properties, such as low solubility in common solvents, moderate thermal stabilities, high densities, pressures velocities, were synthesized fully characterized. The densities of the range between 1.77 2.02 g cm−3 measured using a gas pycnometer. velocities calculated by EXPLO5 code are 31.5–46.2 GPa 8586–10 004 m s−1, which make them competitive materials.

Abstract Energetic salts based on bis‐heterocycle‐substituted 1,2,3‐triazole (HTANFT) were synthesized and characterized by 1 H 13 C NMR spectroscopy, infrared elemental analysis. The crystal structure of neutral HTANFT ( 4 ) was confirmed through single‐crystal X‐ray diffraction. density its ranged from 1.60 to 1.83 g cm –3 , their nitrogen contents 56.4 65.2 % decomposition temperatures between 187 236 °C. determined sensitivities towards impact, friction electrostatic discharge suggest...

Energetic salts based on dipicrylamine and its amino derivative were synthesized. All fully characterized by multinuclear NMR spectroscopy ((1)H, (13)C), vibrational (IR), elemental analysis. Ethylenediammonium di-DPA (DPA=dipicrylamine) 1,3-diaminoguanidinium DPA further confirmed single-crystal X-ray diffraction. These exhibit reasonable physical properties, such as high densities (1.71-1.81 g cm(-3)), good thermal stabilities (T(d) =155-285 °C), low solubilities in water. The impact...

Energetic salts based on bis(N-dinitroethyl)aminofurazan were synthesised. All fully characterised using 1H and 13C multinuclear NMR spectroscopy, infrared elemental analysis, density differential scanning calorimetry. These exhibited reasonable physical properties, such as high densities (1.72 g cm−3 to 1.94 cm−3) low solubilities in water. Based the experimental densities, detonation pressures velocities of energetic calculated, ranging from 26.1 GPa 39.4 8055 m s−1 9388 s−1, respectively....

The third-generation semiconductors are the cornerstone of power semiconductor leap forward and have attracted much attention because their excellent properties wide applications. Meanwhile, femtosecond laser processing as a convenient method further improves performance related devices expands application prospect. In this work, an approximate 3 times improvement internal quantum efficiency (IQE) 5.5 enhancement photoluminescence (PL) intensity were achieved in GaN film prepared using...

New energetic salts based on 1-nitramino-2,4-dinitroimidazole were successfully synthesized. The fully characterized by 1H, 13C NMR and IR spectroscopy, differential scanning calorimetry (DSC), elemental analyses. found to have good physical detonation properties. structure of guanidinium salt (3) was further confirmed single-crystal X-ray diffraction. densities the ranged between 1.70 1.93 g cm−3 as measured a gas pycnometer. pressures velocities calculated EXPLO5 code within 29.3–40.5 GPa...

Abstract Energetic salts that contain nitrogen‐rich cations and the 2‐(dinitromethyl)‐3‐nitro‐1, 3‐diazacyclopent‐1‐ene anion were synthesized in high yield by direct neutralization reactions. The resulting fully characterized multinuclear NMR spectroscopy ( 1 H 13 C), vibrational (IR), elemental analysis, density differential scanning calorimetry (DSC), analysis. Additionally, structures of ammonium ) isopropylideneaminoguanidinium 9 3‐diazacyclopent‐l‐ene confirmed single‐crystal X‐ray...

The enthalpies of dissolution 1,2,4-triazole nitrate in N-methyl pyrrolidone (NMP) were measured using a RD496−2000 Calvet microcalorimeter at four different temperatures under atmospheric pressure. Differential (ΔdifH) and molar (ΔdissH) determined for NMP. corresponding kinetic equations that describe the processes are discussed.

In this paper we introduce the concept of strong L-convexity by making use fuzzy inclusion order on power set. And category L-convex spaces is topological and a co-reflective subcategory bi-stratified spaces. It apparently different f rom L-topology in sense Zhang that exactly L-topology. Finally, present L-convexities can be characterized algebraic L-ordered closure operators.

Abstract New energetic bis(2, 2‐dinitroethyl‐ N ‐nitro)ethylenediamine‐based salts exhibiting moderate physical properties, good detonation and relatively low impact sensitivities were synthesized in high yield by direct reactions of ‐nitro)ethylenediamine with organic bases. The resulting fully characterized multinuclear NMR spectroscopy ( 1 H 13 C), vibrational (IR), differential scanning calorimetry (DSC), elemental analysis. Solid‐state 15 was used as an effective technique to further...

The study investigates the two different underlying ablation mechanisms of WS2 processed by femtosecond (fs) laser with fluences. With increasing fluence, saturable expansion craters and transformation three distinct crater morphologies are found. material response transfer deposition energy tracked using a plasma model based on classical single rate equation Drude model. results numerical simulation time-resolved transient reflectivity reveal mechanisms, which coulomb explosion phase...