Phase evolution and PEC performance of ZnxCd(1−x)S nanocrystalline thin films deposited by CBD

Bagdare, P.B.; Patil, S. B.; Singh, AK

doi:10.1016/j.jallcom.2010.06.152

Cited by 20 publications

(11 citation statements)

References 21 publications

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“…As far as we know, there are few attempts to synthesize mixed Cu-Zn sulphide compounds [27][28][29][30][31][32][33][34] . Uhuegbu et al claimed to have synthesized Cu-Zn-S compounds through a one-pot synthesis with metal chlorides and thiourea in solution, assisted by opportune complexing agents 27 .…”

Section: Phases Occurring In the Cu-zn-s Compositional Fieldmentioning

confidence: 99%

Thermochemistry of the E-ALD process for the growth of CuxZnyS on Ag(111): Interpretation of experimental data

Giaccherini

Montegrossi

Benedetto

et al. 2018

Electrochimica Acta

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The electrochemical atomic layer deposition (E-ALD) growth of chalcogenides materials enables the deposition of technologically interesting ultra-thin films. However, this method raises some questions about the actual growth mechanism. We addressed one of the more interesting anomalies reported lately: the occurrence of the Zn-deficiency and of the polycrystalline thread-like overgrown structures in the E-ALD growth of Cu x Zn y S. The present study was developed using a computational speciation approach under the mass balance method. Exploiting a well-established computational approach, but uncommonly applied to the electrochemical science, we calculated the predominance charts and the equilibrium speciation of the solid phases during the electrochemical process. On this basis, we obtained a deep insight into the mechanism underlying the E-ALD process from a thermodynamic standpoint. Thus, we identified the crucial steps of the Cu x Zn y S growth leading to the anomalies object of this research.

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Section: Phases Occurring In the Cu-zn-s Compositional Fieldmentioning

confidence: 99%

Thermochemistry of the E-ALD process for the growth of CuxZnyS on Ag(111): Interpretation of experimental data

Giaccherini

Montegrossi

Benedetto

et al. 2018

Electrochimica Acta

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“…This critical point can be overcome under out-of-equilibrium conditions of synthesis. As well as we know, few studies report the attempt of synthesizing CuZnS 2 , (Cu, Zn)S or Cu 2 Zn 2 S 3 [7][8][9][10][11][12]. Uhuegbu et al synthesized Cu-Zn-S compounds through a one-pot synthesis with metal chlorides and thiourea in solution, assisted by opportune complexing agents [7].…”

Section: Introductionmentioning

confidence: 99%

“…Conversely, Aduloju et al doped ZnS from a contact solution of Cu 2+ , the resulting products being homogenized by a mild temperature treatment (300 • C) Kitagawa et al claimed to have successfully deposited thin films of Cu 2 Zn 2 S 3 by spray pyrolysis [10]. Bagdare et al claimed to have obtained a nanocrystalline thin films of Cu x Zn 1-x S by means of chemical bath deposition [11]. Moreover, Adelifard et al obtained claimed to have obtained a biphasic CuS-ZnS thin film by means of spray pyrolysis [12].…”

Section: Introductionmentioning

confidence: 99%

Operando SXRD of E-ALD deposited sulphides ultra-thin films: Crystallite strain and size

Giaccherini

Russo

Carlà

et al. 2018

Applied Surface Science

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a b s t r a c tElectrochemical Atomic Layer Deposition (E-ALD), exploiting surface limited electrodeposition of atomic layers, can easily grow highly ordered ultra-thin films and 2D structures. Among other compounds Cu x Zn y S grown by means of E-ALD on Ag(111) has been found particularly suitable for the solar energy conversion due to its band gap (1.61 eV). However its growth seems to be characterized by a micrometric thread-like structure, probably overgrowing a smooth ultra-thin films. On this ground, a SXRD investigation has been performed, to address the open questions about the structure and the growth of Cu x Zn y S by means of E-ALD. The experiment shows a pseudo single crystal pattern as well as a powder pattern, confirming that part of the sample grows epitaxially on the Ag(111) substrate. The growth of the film was monitored by following the evolution of the Bragg peaks and Debye rings during the E-ALD steps. Breadth and profile analysis of the Bragg peaks lead to a qualitative interpretation of the growth mechanism. This study confirms that Zn lead to the growth of a strained Cu 2 S-like structure, while the growth of the thread-like structure is probably driven by the release of the stress from the epitaxial phase.

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“…Moreover, its tunable optical band gap allows Cd 1-x Zn x S to be used for short wavelength optoelectronic devices such as blue, violet, or even ultraviolet LED's, laser diodes and photodetectors. [10][11][12] Apart from optoelectronic applications, CdZnS also has potential applications in photoelectrochemical devices such as photoelectrochemical (PEC) cells (for solar energy conversion) [13] and photoelectrochemical/ photocatalytic cells for splitting of water for hydrogen production. [14][15][16][17][18] Cd 1-x Zn x S is preferred over CdS for photoelectrochemical/photocatalytic splitting of water because A series of nanocrystalline thin films of cadmium zinc sulphide (Cd1-xZnxS) solid solution were deposited on glass substrates using spray pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

“…CdS on the other hand, degrades into soluble cadmium cations, which are not only hazardous but also restrict the performance of the device. [13,20] Several techniques have been employed to grow thin films of Cd 1-x Zn x S like vacuum evaporation, [21][22][23][24] electrochemical deposition, [25] successive ionic layer adsorption, reaction technique, [26] chemical vapor deposition, [27] chemical bath deposition (CBD), [13,28,29] spray pyrolysis, [30,31] etc. Spray pyrolysis is a very simple and inexpensive technique.…”

Section: Introductionmentioning

confidence: 99%

Structural, morphological and optical properties of sprayed nanocrystalline thin films of Cd1-xZnxS solid solution

Verma

Thakur

Rajaram

et al. 2015

Electron. Mater. Lett.

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Phase evolution and PEC performance of ZnxCd(1−x)S nanocrystalline thin films deposited by CBD

Cited by 20 publications

References 21 publications

Thermochemistry of the E-ALD process for the growth of CuxZnyS on Ag(111): Interpretation of experimental data

Thermochemistry of the E-ALD process for the growth of CuxZnyS on Ag(111): Interpretation of experimental data

Operando SXRD of E-ALD deposited sulphides ultra-thin films: Crystallite strain and size

Structural, morphological and optical properties of sprayed nanocrystalline thin films of Cd1-xZnxS solid solution

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