As the energy of excitation photons increases, the spectra of cascade photons and electrons acquire a more and more complicated satellite structure, with the probability of formation of final ions with a higher charges increasing.A. P. Chaynikov...
13offer atomic precision for optoelectronics and energy-efficient nanoelectronics, but most are not easily patterned and tuned. The long-sought14,15,16,17,18,19,20,21,22porphene [(C20N4H2)∞,1] is formed in a hole-doped form from the zinc salt C20N4H12Zn (Zn-2) of porphyrin (C20N4H...
i.The direction of vibration is parallel to its direction of propagation. ii.The wave length is the distance between two adjacent compression. iii.It is a progressive wave iv.Compression has high pressure, and rare-fraction has low pressure. v.Wave transfers energy by stretching and squashing ...
Water is a key ingredient for the emergence of life as we know it. Yet, its destruction and reformation in space remain unprobed in warm gas (T > 300 K). Here we detect with the James Webb Space Telescope the emission of the hydroxyl radical (OH) from d203-506, a planet-for...
Photoconductivity measurements reveal the existence of another energy level located at 0.16 eV. In the studied temperature range, the photocurrent increases with increasing temperature. The dependence of the photoconductivity on the incident light intensity exhibits a linear recombination character near room ...
The secondary electron energy distributions for a gold photocathode as excited by CKα(277 eV) and AlKα(1487 eV) x rays have been measured. The shapes of the energy distributions are essentially the same for these two x‐ray photon excitation energies. For thick evaporated gold samples on gl...
The PL spectrum exhibits asymmetric peaks, therefore the PL spectra at each temperature could be well fitted by a two-Gaussian function shown in Fig.2c. The high energy band, band I; the low energy band, band II (Fig.2d). Furthermore, the energy gap (bandwidth) of fluorescence was insp...
(the traditional design concept of the organic dyes is the donorπ-linker–acceptor structure), a series of organic dyes with pyridinium as acceptor have been synthesized in order to approach the optimal energy level composition in the TiO 2 –dye–iodide/triiodide system in the dye-sensitized ...
The presence of mobile ions in metal halide perovskites has been shown to adversely affect the intrinsic stability of perovskite solar cells (PSCs). However, the actual contribution of mobile ions to the total degradation loss compared with other factors
Here we experimentally investigate the contrast mechanism of IR-PiFM for recording vibrational resonances. We show that the measured spectroscopic information of a sample is directly related to the energy lost in the oscillating cantilever, which is a direct consequence of a molecule excited at its ...