Characterization of PbS films deposited by successive ionic layer adsorption and reaction (SILAR) for CdS/PbS solar cells application

Pérez-García, C.E.; Meraz-Davila, S.; Arreola-Jardón, G.; Moure-Flores, F. de; Ramı́rez-Bon, R.; Vorobiev, Yu. V.

doi:10.1088/2053-1591/ab6b5c

Cited by 22 publications

(5 citation statements)

References 23 publications

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“…In the materials and structures studied, two types of quantum confinement effects are observed: one connected with near-boundary quantum wells (blue shift of CdS photoluminescence spectrum), and another resulting from the material porosity (band gap blue shift found in CdS, CdSe and PbS). The first effect was analyzed in previous publication [5]; here we discuss the second one.…”

Section: Discussion Of Quantum Effectsmentioning

confidence: 92%

“…Materials produced by these methods are usually nano porous; this porosity causes the corresponding quantum confinement that affects the band gap value. The corresponding band gap variation can be regulated by experimental conditions; for illustration, in PbS we observed the band gap variation between 0.4 and 0.8 eV [4,5]. Thus, within the family of materials discussed (CdS, CdSe and PbS) we have a set of band gaps of approximately 2.4, 1.7 and 0.8 eV sufficient to cover the whole solar spectrum in corresponding multi-union solar cell.…”

Section: Introductionmentioning

confidence: 78%

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Nanostructured Chalcogenide Thin Films Synthesized by Chemical Methods for Photovoltaic Applications

Vorobiev¹,

Willars-Rodríguez²,

Chimal-Moreno³

et al. 2020

IJTAN

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The chalcogenide semiconductors, like CdS, CdSe, CdTe, PbS, PbSe are of great interest for photovoltaic applications, in particular, due to the possibility to be part of multi-layered (tandem) photovoltaic converters. These materials are not expensive and can be produced by economic and ecologically friendly techniques like CBD (Chemical Bath Deposition) and its recent versions (SILAR -Successive Ionic Layer Adsorption and Reaction, and LACBD -Light Assisted Chemical Bath Deposition). It is known that nano--porosity is an essential feature of these techniques. In this paper we study its effects upon the band gap values; the corresponding band gap variations can be used for optimizing the device efficiency. The porosity was modeled by close-packed ball system. In general, we conclude that the quantum confinement effects caused by nano-structuration of semiconductor thin films for photovoltaic converters improve the converter's parameters.

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Section: Discussion Of Quantum Effectsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 78%

Nanostructured Chalcogenide Thin Films Synthesized by Chemical Methods for Photovoltaic Applications

Vorobiev¹,

Willars-Rodríguez²,

Chimal-Moreno³

et al. 2020

IJTAN

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“…Other sulfides used in the broader photovoltaic and photocatalysis fields both as nanostructured thin films and quantum dots include silver sulfide (Ag 2 S), [72][73][74] tin sulfide (SnS), [75,76] nickel sulfide (NiS), [77,78] and lead sulfide (PbS). [79][80][81] Again, in many of these cases the precursors are inorganic metal salts (chlorides, nitrates, sulfates) or acetates, and the sulfide precipitation occurs upon reaction with sodium sulfide. SILAR-deposited sulfide coatings have also applications in gas sensing, like in the case of CuS, [82] energy storage, including examples of Bi 2 S 3 [83] and MoS 2 , [14] and thermoelectric and superconductors, like in the case of lanthanum sulfides.…”

Section: Sulfidesmentioning

confidence: 99%

SILAR Deposition of Metal Oxide Nanostructured Films

Ratnayake

Ren

Colusso

et al. 2021

Small

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Methods for the fabrication of thin films with well controlled structure and properties are of great importance for the development of functional devices for a large range of applications. SILAR, the acronym for Successive Ionic Layer Adsorption and Reaction, is an evolution and combination of two other deposition methods, the Atomic Layer Deposition and Chemical Bath Deposition. Due to a relative simplicity and low cost, this method has gained increasing interest in the scientific community. There are, however, several aspects related to the influence of the many parameters involved, which deserve further deepening. In this review article, the basis of the method, its application to the fabrication of thin films, the importance of experimental parameters, and some recent advances in the application of oxide films are reviewed. At first the fundamental theoretical bases and experimental concepts of SILAR are discussed. Then, the fabrication of chalcogenides and metal oxides is reviewed, with special emphasis to metal oxides, trying to extract general information on the effect of experimental parameters on structural, morphological and functional properties. Finally, recent advances in the application of oxide films prepared by SILAR are described, focusing on supercapacitors, transparent electrodes, solar cells, and photoelectrochemical devices.

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“…This device consists of an ITO-coated glass substrate, on which a cadmium sulfide semiconductor film is deposited, followed by a second lead sulfide semiconductor film, back contact/PbS/CdS/ITO/glass. The semiconductor films involved were synthesized by CBD, with formulations previously reported in the scientific literature. ,,− …”

Section: Introductionmentioning

confidence: 99%

“…The semiconductor films involved were synthesized by CBD, with formulations previously reported in the scientific literature. 86 , 87 , 89 − 91…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of a Semiconductor Diodic Bilayer PbS/CdS Made by the Chemical Bath Deposition Technique

Encinas-Terán,

Pineda-León,

Gómez-Colín

et al. 2024

ACS Omega

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In this work, we report a heterojunction formed by a PbS/CdS bilayer using the chemical bath deposition (CBD) technique because it is a relatively simple, fast, and low-cost technique; is permitted to obtain highquality thin films (TFs); and also covers large areas. Some characterizations have been carried out to confirm the identity of the involved bilayer. For the cadmium sulfide (CdS) film, optical properties such as absorption, transmission, reflection, extinction coefficient, and refractive index were measured. Moreover, the bandgap was calculated, and morphology was obtained by scanning electron microscopy (SEM). Also, X-ray diffraction (XRD) and high-resolution transmission electron microscopy (TEM) were performed for the synthesis of CdS films. On the other hand, for the synthesis of lead sulfide (PbS) films, we performed TEM, energy-dispersive spectroscopy, and XRD. A surface morphological SEM image of the PbS film synthesized was also taken. The multiheterojunction PbS/CdS bilayer was characterized by the current−voltage (I−V) curve, and the behavior of the bilayer was evaluated under the conditions of darkness and controlled fixed lighting, detecting a very slight photosensitivity of the complete diodic device through those measurements. The calculated bandgap for the CdS TF was E g = 2.55 eV, while after a chosen thermal annealing, the bandgap decreased to 2.38 eV. On the other hand, the PbS film presented a cubic structure.

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Characterization of PbS films deposited by successive ionic layer adsorption and reaction (SILAR) for CdS/PbS solar cells application

Cited by 22 publications

References 23 publications

Nanostructured Chalcogenide Thin Films Synthesized by Chemical Methods for Photovoltaic Applications

Nanostructured Chalcogenide Thin Films Synthesized by Chemical Methods for Photovoltaic Applications

SILAR Deposition of Metal Oxide Nanostructured Films

Synthesis and Characterization of a Semiconductor Diodic Bilayer PbS/CdS Made by the Chemical Bath Deposition Technique

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