Growth of nanocrystalline CuIn3Se5 (OVC) thin films by ion exchange reactions at room temperature and their characterization as photo-absorbing layers

2009 ◽  
Vol 255 (18) ◽  
pp. 8158-8163 ◽  
Author(s):  
Ramphal Sharma ◽  
Anil Ghule ◽  
Vidya Taur ◽  
R. Joshi ◽  
Rajaram Mane ◽  
...  
Keyword(s):  
Thin Films ◽  
Ion Exchange ◽  
Room Temperature ◽  
Exchange Reactions

A facile room temperature chemical transformation approach for binder-free thin film formation of Ag2Te and lithiation/delithiation chemistry of the film

2016 ◽  
Vol 45 (43) ◽  
pp. 17312-17318 ◽  
Author(s):  
Eun-Kyung Kim ◽  
Dasom Park ◽  
Nabeen K. Shrestha ◽  
Jinho Chang ◽  
Cheol-Woo Yi ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Aqueous Solution ◽  
Ion Exchange ◽  
Chemical Transformation ◽  
Room Temperature ◽  
Film Formation ◽  
Synthetic Method ◽  
Binder Free ◽  
Thin Film Formation

An aqueous solution based synthetic method for binder-free Ag2Te thin films using ion exchange induced chemical transformation of Ag/AgxO thin films.

Kinetics of Ion-Exchange Reactions in Hybrid Organic–Inorganic Perovskite Thin Films Studied by In Situ Real-Time X-ray Scattering

2018 ◽  
Vol 9 (23) ◽  
pp. 6750-6754 ◽  
Author(s):  
Alessandro Greco ◽  
Alexander Hinderhofer ◽  
M. Ibrahim Dar ◽  
Neha Arora ◽  
Jan Hagenlocher ◽  
...  
Keyword(s):  
Thin Films ◽  
Ion Exchange ◽  
Real Time ◽  
Exchange Reactions ◽  
Inorganic Perovskite ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Kinetics Of Ion Exchange

Photoinduced Topotaxial Exchange Reactions in Cadmium Sulphide Thin Films

1986 ◽  
Vol 75 ◽  
Author(s):  
T. J. Cumberbatch ◽  
P. E. Barden ◽  
J. Knightley
Keyword(s):  
Thin Films ◽  
Ion Exchange ◽  
Laser Beam ◽  
Cadmium Sulphide ◽  
Frequency Range ◽  
Exchange Reactions ◽  
Organic Solution ◽  
Cuprous Salt ◽  
Visible Frequency ◽  
Cuprous Sulphide

AbstractA CO2 laser, operating at 10.6μm, has been used to promote the growth of topotaxial layers of the chalcocite phase of cuprous sulphide in cadmium sulphide thin films immersed in an organic solution of a cuprous salt at ambient temperature. Cuprous sulphide growth is initiated by the laser beam which passes through the liquid and raises the surface temperature of the CdS allowing ion exchange to take place without changing the surface topography. An investigation into different combinations of organic solvents and cuprous/cupric salts has revealed that cuprous iodide in acetonitrile or propionitrile yields the fastest growth rates. The results are compared with those obtained from junctions fabricated using lasers operating in the visible frequency range.

Ion Exchange Behavior of the Febex Bentonite. 1. Na/K, Na/Mg and Na/Ca Experimental Exchange Isotherms

2000 ◽  
Vol 663 ◽  
Author(s):  
F.J. Huertas ◽  
P. Carretero ◽  
J. Delgado ◽  
J. Linares ◽  
J. Samper
Keyword(s):  
Ion Exchange ◽  
Divalent Cation ◽  
Room Temperature ◽  
Selectivity Coefficient ◽  
Exchange Constant ◽  
Exchange Reactions ◽  
Selectivity Coefficients ◽  
Equivalent Fractions ◽  
A Value ◽  
Wyoming Bentonite

ABSTRACTNa/K, Na/Mg, and Na/Ca exchange isotherms have been experimentally determined for the FEBEX bentonite. Na-homoionized FEBEXbentonite was reacted at room temperature with mixedsalt dissolution of NaCl/KCl, NaCl/MgCl2, or NaCl/CaCl2, while keeping a total cation normality of 0.5 eq L-1. Isotherm exchange experiments were performed using ten (duplicated)experimental points, which cover the complete range of the corresponding binary equivalent fractions. Results indicate that for the Na/K exchange reaction, Vanselow coefficients are larger than one, what is in agreement with the tendency of the smectite of having greater affinity for K than for Na. The exchange constant decreases as K progressively replaces Na in the smectite. This tendency ends when the equivalent fraction of potassium, EK, reaches a value of around 0.250.3. From this point to higher K contents, it remains nearly constant irrespective of EK but slightly decreasing again at values near one. The Vanselow selectivity coefficient for the Na/Mg isotherm indicates a preference for the divalent cation. It is nearly constant (Kv ≍ 5.6) for EMg < 0.6, but increases up to 10.2 for a nearly Mg-saturated smectite.The Na/Ca exchange resembles that of Na/Mg, although the selectivity coefficients are larger (Kv ≍ 7.0 for ECa < 0.6). The comparison of the selectivity coefficients for the Na/Mg and Na/Ca exchange reactions indicates that the smectite has a slightly higher affinity for Ca than for Mg. This result is consistent with those observed for the Wyoming bentonite.

ChemInform Abstract: CdSe Thin Films.: Chemical Deposition Using N,N-Dimethylselenourea and Ion Exchange Reactions to Modify Electrical Conductivity.

ChemInform ◽  
2010 ◽  
Vol 25 (6) ◽  
pp. no-no
Author(s):  
M. T. S. NAIR ◽  
P. K. NAIR ◽  
H. M. K. K. PATHIRANA ◽  
R. A. ZINGARO ◽  
E. A. MEYERS
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Ion Exchange ◽  
Chemical Deposition ◽  
Exchange Reactions

CdSe Thin Films: Chemical Deposition Using N,N‐Dimethylselenourea and Ion Exchange Reactions to Modify Electrical Conductivity

1993 ◽  
Vol 140 (10) ◽  
pp. 2987-2994 ◽  
Author(s):  
M. T. S. Nair ◽  
P. K. Nair ◽  
H. M. K. K. Pathirana ◽  
Ralph A. Zingaro ◽  
Edward A. Meyers
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Ion Exchange ◽  
Chemical Deposition ◽  
Exchange Reactions

Rapid direct conversion of Cu2−xSe to CuAgSe nanoplatelets via ion exchange reactions at room temperature

Nanoscale ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 9452-9456 ◽  
Author(s):  
N. A. Moroz ◽  
A. Olvera ◽  
G. M. Willis ◽  
P. F. P. Poudeu
Keyword(s):  
Ion Exchange ◽  
Room Temperature ◽  
Direct Conversion ◽  
Exchange Reactions ◽  
The Creation

High Cu+ mobility in cubic Cu2−xSe facilitates Cu+ and Ag+ ion exchange leading to the creation of cubic CuAgSe at 300 K.

Incubation of PbSe Thin Films in a Tin(II) Salt Aqueous Solution: Modification and Ion-Exchange Reactions

2015 ◽  
Vol 31 (8) ◽  
pp. 790-797 ◽  
Author(s):  
Zinaida I. Smirnova ◽  
Larisa N. Maskaeva ◽  
Vyacheslav F. Markov ◽  
Vladimir I. Voronin ◽  
Mikhail V. Kuznetsov
Keyword(s):  
Thin Films ◽  
Aqueous Solution ◽  
Ion Exchange ◽  
Exchange Reactions

scholarly journals Ion-exchange properties of Zn4(OH)6(SO4) 2.5H2O

2020 ◽  
Vol 81 (3) ◽  
pp. 28-30
Author(s):  
Zlatka Delcheva ◽  
Tsveta Stanimirova ◽  
Nadia Petrova
Keyword(s):  
Ion Exchange ◽  
Room Temperature ◽  
Water Solution ◽  
Exchange Reactions ◽  
Hydrate Phase ◽  
Sulfate Hydrate ◽  
Kinetics Of ◽  
New Phase ◽  
Exchange Properties ◽  
Kinetics Of Ion Exchange

The aim of the present study is to check the possibilities for ion exchange of a new zinc-hydroxy-sulfate-hydrate phase, Zn4(OH)6SO4·2–2.25H2O. The new zinc hydroxy sulfate hydrate phase was obtained by mixing of 0.5 g of Zn5(OH)8(NO3)2.2H2O and 50 ml of 1M Na2SO4 for 48h at room temperature and pH of the solution between 5–7. Ion-exchange properties were investigated by mixing of 0.2 g Zn4(OH)6(SO4) 2.5H2O with 20 ml water solution of NaCl, CaCl2 or SrCl2 with different concentrations (0.5М, 1М, or 2M) for different time (24h, 48h and 72h) at room temperature. The pH of the solutions varied in the range 6–8. The new phase has exchange properties potentials, like other zinc hydroxy sulfate hydrates composed of octahedral-tetrahedral layers. The results obtained for the kinetics of ion-exchange reactions are additional useful data for the solving of the structure of the new zinc-hydroxy-sulfate-hydrate phase in the future.

Studies on Water in the Hydration Chamber of a Modified Electron Microscope

1970 ◽  
Vol 28 ◽  
pp. 544-545
Author(s):  
R. C. Moretz ◽  
G. G. Hausner ◽  
D. F. Parsons
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electron Microscope ◽  
Steady State ◽  
Room Temperature ◽  
Small Mass ◽  
Equilibrium Pressure ◽  
Biological Objects ◽  
Mechanical Pump ◽  
Differential Pumping

Use of the electron microscope to examine wet objects is possible due to the small mass thickness of the equilibrium pressure of water vapor at room temperature. Previous attempts to examine hydrated biological objects and water itself used a chamber consisting of two small apertures sealed by two thin films. Extensive work in our laboratory showed that such films have an 80% failure rate when wet. Using the principle of differential pumping of the microscope column, we can use open apertures in place of thin film windows.Fig. 1 shows the modified Siemens la specimen chamber with the connections to the water supply and the auxiliary pumping station. A mechanical pump is connected to the vapor supply via a 100μ aperture to maintain steady-state conditions.

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