The rate of NH3 formation is first order in the atomic nitrogen coverage and linearly proportional to the H2 pressure below 5 × 10-7 mbar. Static secondary ion mass spectrometry (SSIMS) indicates that N and NH2 are the predominant reaction intermediates, while small amounts of NH3 are also...
using low-dose imaging technique by direct-detection electron-counting camera in a transmission electron microscope, we investigate the atomic structure and decomposition pathway of CH3NH3PbI3(
Here, using low-dose imaging technique by direct-detection electron- counting camera in a transmission electron microscope, we investigate the atomic structure and decomposition pathway of CH3NH3PbI3 (MAPbI3) at the atomic scale. We successfully image the atomic structure of perovskite in real ...
The reaction efficiency for graphite nitridation was derived from the interpolated N-atom concentration and the measured graphite mass loss for a given test time. The reaction efficiency, defined as the fraction of N-atom collisions with the surface that result in the title reaction, was found to...
Undoped and doped tetrahedrally bonded amorphous carbon films (ta-C) were grown in UHV by alternating deposition of low energy mass separated 12C+ ions and dopant ions. For undoped ta-C the fraction of sp3-bonded carbon atoms was determined by EELS as a function of ion energy. The observed...
The ultrathin Al2O3 layer deposited at room temperature significantly increases the lifetime of the perovskite solar cells, and we hope this may be a step toward the mass production of stable devices. Graphical Abstract Download: Download high-res image (209KB) Download: Download full-size ...
Higher order ligation reactions were observed with M+ to form M+(NH3)(n) with n up to 6 and MNH+(NH3)(n) with n up to 3. Experiments with three of the 3rd row MNH+ cations (M =Ta+, W+, and Os+) revealed the rapid formation of a second imido bond to produce M(NH)(2)(...
Exact Mass:-0.7 XLogP3-AA:14.003074004 Monoisotopic Mass:14.003074004 Complexity:0 Rotatable Bond Count:0 Hydrogen Bond Donor Count:0 Hydrogen Bond Acceptor Count:0 Topological Polar Surface Area:1 Heavy Atom Count::1 Defined Atom Stereocenter Count:0 Undefined Atom Stereocenter Count:0 Defined Bond...
S.,Chiappim,W.,Medeiros,Testoni,G. E.,de Lima,J. S. B.,Vieira,L. 展开 摘要: The effect of process temperature and reaction cyc 关键词: Atomic layer deposition Titanium tetrachloride Titanium dioxide thin film Mass spectrometry RBS Film crystallinity Morphology 年份: 2016 ...
This trend was expected, given that the density of thin TiN films reaches a maximum when the ratio of Ti and N approaches unity and exhibits a lower mass density for nonstoichiometric films [37], [38]. 3.3. GI-XRD analysis To investigate the structural properties of TiN thin films, ...