Cyclic Electrodeposition of PbS Thin Films

Saloniemi, Heini; Ritala, Mikko; Leskelä, Markku; Lappalainen, Reijo

doi:10.1149/1.1391965

Cited by 22 publications

(7 citation statements)

References 18 publications

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“…PbS nanostructures and thin films have been fabricated using a variety of wet and dry methods including molecular beam epitaxy, spray pyrolysis, electrodeposition, vacuum evaporation, , atomic layer deposition, and chemical bath deposition (CBD). − ,− Chemical bath deposition is an attractive method for the deposition of chalcogenide thin films because it can be employed at low temperatures (≤50 °C) which are compatible with organic substrates, such as polymers and self-assembled monolayers (SAMs), and is inexpensive since the deposition is performed under ambient conditions.…”

Section: Introductionmentioning

confidence: 99%

Morphological Control of PbS Grown on Functionalized Self-Assembled Monolayers by Chemical Bath Deposition

Yang

Walker

2014

Langmuir

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We have investigated the chemical bath deposition (CBD) of PbS on functionalized alkanethiolate self-assembled monolayers (SAMs) using time-of-flight secondary ion mass spectrometry (SIMS), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy. The deposition mechanism involves both cluster-by-cluster and ion-by-ion growth. The dominant reaction pathway and the chemical composition and morphology of the deposited layer are dependent on both the SAM terminal group and the experimental conditions. On -COOH-terminated SAMs, three types of crystallites are observed: nanocrystals formed by heterogeneous ion-by-ion growth, larger needle-like particles, and ~2 μm particles deposited by homogeneous cluster-by-cluster deposition. The nanocrystals nucleate at Pb(2+)-carboxylate surface complexes, and so strongly adhere to the substrate. On -OH- and -CH3-terminated SAMs, only the micrometer-sized particles are formed by a cluster-by-cluster deposition mechanism. These particles do not adhere strongly to the SAM surface and can be easily removed. SIMS and XPS analyses indicate that the larger needle-like crystals and micrometer-sized particles are composed of oxidized lead sulfide and lead oxides, while the nanocrystals are composed of ≥85% PbS. Using sonication-assisted CBD, we demonstrate that PbS is deposited by ion-by-ion growth alone on -COOH-terminated SAMs. The deposited film is more compact with a smaller grain size and is >90% PbS.

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Section: Introductionmentioning

confidence: 99%

Morphological Control of PbS Grown on Functionalized Self-Assembled Monolayers by Chemical Bath Deposition

Yang

Walker

2014

Langmuir

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“…PbS thin films can be obtained by different deposition techniques such as vacuum evaporation [10], successive ionic layer adsorption and reaction (SILAR) [11], chemical vapor deposition (CVD) [12], electrodeposition (ED) [13][14][15][16], and chemical bath deposition (CBD) [17,18]. Among the above mentioned methods CBD and ED are mostly used as low cost film growth techniques.…”

Section: Introductionmentioning

confidence: 99%

Physical properties of pulse electrodeposited lead sulfide thin films

Mathews

Ángeles–Chávez

Cortés-Jácome

et al. 2013

Electrochimica Acta

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“…To date, extensive researches have been devoted to produce PbS by various deposition processes and methods. Conventionally, chemical bath deposition (CBD) [6], photochemical deposition (PCD) [7], atomic layer epitaxy (ALE) [8], successive ionic layer adsorption and reaction (SILAR) [9] and electrodeposition [10][11][12][13][14] have been utilized to prepare this semiconductor. Electrochemical deposition techniques are attractive methods alternatives to conventional deposition methods because they are inexpensive, operate at ambient temperatures and pressure and provide film thickness control [15].…”

Section: Introductionmentioning

confidence: 99%

“…Electrodeposition of PbS from aqueous solutions has been carried out by constant potential methods, either cathodically [10,11], or anodically [12]. Also, Saloniemi has been prepared PbS by cycling the potential between anodic and cathodic windows using the disodium salt of ethylenediaminetetraacetic acid (EDTA) as a complexing agent for Pb and sodium sulfide (Na 2 S) as a source of sulfide [14].…”

Section: Introductionmentioning

confidence: 99%