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Electrical bistability and memory switching phenomenon in Cu2FeSnS4 thin films: role of p-n junction
Madhusudanan Sreejith P. Mohanta Kallol Batabyal Sudip K. 《Journal of Solid State Electrochemistry》2019,23(5):1307-1314
Journal of Solid State Electrochemistry - Electrical bistability of Cu2FeSnS4 (CFTS) thin films fabricated via successive ionic layer adsorption and reaction (SILAR) method was studied here. The... 相似文献
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We consider the thermoelastic plate under the presence of along range memory. We find uniform rates of decay (in time)of the energy, provided that suitable assumptions on the relaxationfunctions are given. Namely, if the relaxation decays exponentiallythen the first order energy also decays exponentially. Whenthe relaxation g satisfies -c1g(t)1+1/p g'(t) -cog(t)1+1/p; and g,g1-1/p L1 (R) withp > 2 then the energy decays as 1/(1+t)p. A new Liapunov functionalis built for this problem. 相似文献
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Using integer and noninteger n-Slater type orbitals in single- and double-zeta approximations, the Hartree-Fock-Roothaan calculations were performed for the ground states of first ten cationic members of the isoelectronic series of He atom. All the noninteger parameters and orbital exponents were fully optimized. In the case of noninteger n-Slater type orbitals in double zeta basis sets, the results of calculations obtained are more close to the numerical Hatree-Fock values and the average deviations of our ground state energies do not exceed 2×10-6 hartrees of their numerical results. 相似文献
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Kand D Kalle AM Varma SJ Talukdar P 《Chemical communications (Cambridge, England)》2012,48(21):2722-2724
A new chromenoquinoline-based fluorescent off-on thiol probe 2 is reported. In aqueous buffer solutions at physiological pH, the probe exhibited 223-fold enhancement in fluorescence intensity by a Michael addition of cysteine to the maleimide appended to a chromenoquinoline. Cell permeability and live cell imaging of thiols are also demonstrated. 相似文献
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ÜMMÜHAN OCAK HALIT KANTEKIN YAŞAR GÖK H. BASIR ŞENTÜRK 《Journal of inclusion phenomena and macrocyclic chemistry》2006,55(1-2):87-91
The selective liquid–liquid extraction of various transition metal cations from the aqueous phase to the organic phase was carried out using a 14-membered N2O2S2-macrobicycle. Metal picrates such as Pb2+, Co2+, Zn2+, Ni2+,Cu2+ and Cd2+ were used in this extraction studies. It was found that the ligand showed moderate selectivity towards Pb2+ only among the other metals. The extraction constant (log K
ex) was determined to be 13.8 for Pb2+ complex. 相似文献
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Jinu George P. Sudheesh P. Neelakanta Reddy Lisa Sreejith 《Journal of solution chemistry》2009,38(3):373-381
The effect of the simultaneous presence of salt, sodium chloride and gelatin on micellar association structures (morphology)
of cetyl trimethylammonium bromide (CTAB) has been monitored by viscosity, conductivity, Circular Dichroism (CD) spectroscopy,
Differential Scanning Calorimetry (DSC) and Fourier Transform Infrared Spectroscopic (FTIR) measurements. The steep rise in
viscosity indicated micellar structural transitions from a sphere to higher orders in the system. CD spectroscopy revealed
that gelatin has not undergone any conformational changes but induced the structural transitions in the system. Instead of
a denaturing effect of the salt, the resultant gel formed was found to be stable. Electrostatic repulsion of the surfactant
head groups were reduced by the screening of the halide ion that favored closer packing of the surfactant monomers. Conversely,
the presence of an ion may decrease the surface charge of the micelle and thus increase the micellar packing parameter. DSC
and FTIR measurements corroborated these findings. 相似文献