Mechanism of Chemical Bath Deposition of Cadmium Sulfide Thin Films in the Ammonia‐Thiourea System: In Situ Kinetic Study and Modelization

1993 ◽  
Vol 140 (12) ◽  
pp. 3464-3473 ◽  
Author(s):  
Raúl Ortega‐Borges ◽  
Daniel Lincot
Keyword(s):  
Thin Films ◽  
Kinetic Study ◽  
Cadmium Sulfide ◽  
Chemical Bath Deposition

scholarly journals Cadmium Sulfide Thin Films Deposited onto MWCNT/Polysulfone Substrates by Chemical Bath Deposition

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
M. Moreno ◽  
G. M. Alonzo-Medina ◽  
A. I. Oliva ◽  
A. I. Oliva-Avilés
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Cadmium Sulfide ◽  
Chemical Bath Deposition ◽  
Multiwall Carbon Nanotubes ◽  
Low Concentrations ◽  
Average Grain Size ◽  
Cds Thin Films ◽  
Current Electric Field

Cadmium sulfide (CdS) thin films were deposited by chemical bath deposition (CBD) onto polymeric composites with electric field-aligned multiwall carbon nanotubes (MWCNTs). MWCNT/polysulfone composites were prepared by dispersing low concentrations of MWCNTs within dissolved polysulfone (PSF). An alternating current electric field was “in situ” applied to align the MWCNTs within the dissolved polymer along the field direction until the solvent was evaporated. 80 μm thick solid MWCNT/PSF composites with an electrical conductivity 13 orders of magnitude higher than the conductivity of the neat PSF were obtained. The MWCNT/PSF composites were subsequently used as flexible substrates for the deposition of CdS thin films by CBD. Transparent and adherent CdS thin films with an average thickness of 475 nm were obtained. The values of the energy band gap, average grain size, rms roughness, crystalline structure, and preferential orientation of the CdS films deposited onto the polymeric substrate were very similar to the corresponding values of the CdS deposited onto glass (conventional substrate). These results show that the MWCNT/PSF composites with electric field-tailored MWCNTs represent a suitable option to be used as flexible conducting substrate for CdS thin films, which represents an important step towards the developing of flexible systems for photovoltaic applications.

In situ monitoring the role of citrate in chemical bath deposition of PbS thin films

CrystEngComm ◽  
2016 ◽  
Vol 18 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Sucheta Sengupta ◽  
Maayan Perez ◽  
Alexander Rabkin ◽  
Yuval Golan
Keyword(s):  
Thin Films ◽  
Light Scattering ◽  
Optical Absorption ◽  
Chemical Bath Deposition ◽  
Trisodium Citrate ◽  
In Situ Monitoring ◽  
Cluster Mechanism ◽  
Absorption Measurements

We report the formation of size tunable PbS nanocubes induced by the presence of trisodium citrate during growth of PbS thin films by chemical bath deposition. The presence of citrate induces growth by the cluster mechanism which is monitored by XRD and HRSEM, along with real time light scattering and optical absorption measurements.

Kinetic study on Zn(O,OH)S thin films deposited by chemical bath deposition

2010 ◽  
Vol 55 (20) ◽  
pp. 5610-5616 ◽  
Author(s):  
W. Vallejo ◽  
M. Hurtado ◽  
G. Gordillo
Keyword(s):  
Thin Films ◽  
Kinetic Study ◽  
Chemical Bath Deposition

scholarly journals Electrochromism in tungsten oxide thin films prepared by chemical bath deposition

2017 ◽  
pp. 27 ◽  
Author(s):  
Julijana Velevska ◽  
Nace Stojanov ◽  
Margareta Pecovska-Gjorgjevich ◽  
Metodija Najdoski
Keyword(s):  
Thin Films ◽  
Tungsten Oxide ◽  
Chemical Bath Deposition ◽  
Response Times ◽  
Glass Substrates ◽  
Deep Blue ◽  
Energy Gaps ◽  
Visible Transmittance ◽  
Tungsten Oxide Thin Films

<p class="PaperAbstract"><span lang="EN-US">Tungsten oxide (WO<sub>3</sub>) thin films were prepared by a simple, economical, chemical bath deposition method onto fluorine doped tin oxide (FTO) coated glass substrates. The electrochemical properties of the films were characterized by cyclic voltammetry. The obtained films exhibited electrochromism, changing color from initially colorless to deep blue, and back to colorless. Visible transmittance spectra of (WO<sub>3</sub>) films were recorded in-situ in their both, bleached and colored states. From those spectra, absorption coefficient (</span><span lang="EN-US">a</span><span lang="EN-US">) and the optical energy gaps were evaluated. The dependence of the optical density on the charge density was examined and the coloration efficiency (</span><span lang="EN-US">h</span><span lang="EN-US">) was calculated to be 22.11 cm<sup>2 </sup>C<sup>-1</sup>. The response times of the coloring and bleaching to an abrupt potential change from -2.5 V to +2.5 V and reverse, were found to be 9.3 and 1.2 s respectively. The maximum light intensity modulation ability of the films, when the AM1.5 spectrum is taken as an input, was calculated to be about 50 %.</span></p>

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