Crystal Structure and Growth Mechanism of Lead Monoxide Thin Films Produced by Pulsed Laser Deposition

Baleva, M.; Bozukov, Luchezar N.; Tuncheva, V.

doi:10.1021/j100101a033

Cited by 12 publications

(4 citation statements)

References 4 publications

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“…The presence of other lead oxide phases has been reported by Kirkbir et al [12] in PbO powders synthesized from spray pyrolysis of lead nitrate. Traces of higher oxides of lead have also been detected in PbO thin films deposited using different techniques under different conditions by various groups [9,19].…”

Section: Structural Studiesmentioning

confidence: 98%

Optical and structural studies on spray deposited α-PbO thin films

Thangaraju¹,

Kaliannan²

2000

Semicond. Sci. Technol.

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Thin films of tetragonal lead monoxide have been prepared from spray pyrolytic decomposition of an aqueous solution of lead nitrate. The spray pyrolysis set-up developed for this study is also described briefly. From the structural investigations it has been found that the films generally grow with some admixture of monoclinic PbO 1.57 phase. The absorption coefficients of the films have been determined from transmittance measurements in the 400-1200 nm region. From an analysis of the room temperature optical absorption data, a direct transition band gap of 1.9 eV has been obtained for α-PbO.

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Section: Structural Studiesmentioning

confidence: 98%

Optical and structural studies on spray deposited α-PbO thin films

Thangaraju¹,

Kaliannan²

2000

Semicond. Sci. Technol.

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“…Hence the β-PbO although in metastable state can exist below the transition temperature. 19 The preferred orientation along the (002) plane at lower temperature (380°C) reveals that the c-axis is perpendicular to the surface of the films, while the change in the preferred orientation to the (100) plane at higher deposition temperatures (470°C) reflects the tilting of the c-axis with respect to the substrate surface. Raman spectra for the films deposited at different temperatures (380°C, 450°C, and 470°C) are shown in Fig.…”

Section: Morphological Characterization-surface Morphology Of Sprayed...mentioning

confidence: 98%

Photoelectrochemical Properties of α-PbO Films Prepared by Spray Pyrolysis

Bhagat

Waldiya

Mukhopadhyay

et al. 2019

J. Electrochem. Soc.

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Thin films of photoactive α-PbO have been prepared on fluorine doped tin oxide substrates using spray pyrolysis in the range of 380°C to 470°C. SEM showed the formation of interconnected PbO grains with increase in grain size at elevated temperature. The Raman peak at 147 cm −1 shows the formation of phase pure α-PbO. XPS indicates the phase purity of α-PbO as well as its stoichiometric nature. Photoelectrochemical studies of as-deposited α-PbO in 0.1 M potassium ferrocyanide (K 4 Fe(CN) 6 ) or potassium iodide (KI) at pH 9.2 under visible light irradiation showed photoanodic and photocathodic current, indicating nearly intrinsic behavior. Photocurrent spectra showed the presence of a semiconductor with an indirect bandgap of 1.9 eV. Doping by inducing oxygen deficiency through annealing in hydrogen and addition of 2 at. % In, shifted the onset potential to more negative values (down to −0.5 vs. Hg/HgO) in KI, indicating successful conversion into n-type semiconducting material. The In doped hydrogen annealed α-PbO shows a flatband potential of −0.58 V vs. Hg/HgO. The IPCE (incident photon to current conversion efficiency) in KI electrolyte was found to be 0.016 in the plateau region (0.6 V vs. Hg/HgO) at an incident wavelength of 532 nm.

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“…These TCO s find extensive applications in thin film transistors, solar cells, phototransistors, optical storage devices, gas sensors, photo-thermal and photovoltaic conversions [5][6][7][8]. PbO exists in tetragonal (α-phase) and orthorhombic (β-phase) structures at low and high temperatures respectively [9]. The difficulty of preparing exclusively single phase α-or β-PbO was pointed out earlier.…”

Section: Introductionmentioning

confidence: 99%

Constructing Spray Pyrolysis System for the Preparation of Thin Films and Study the Optical Properties of PbO Films

Hasan

Mohammed

2015

ILCPA

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In this paper, the design of spray pyrolysis system to prepare thin films of various materials system. The study showed that films prepared with good characteristics. films were prepared from lead oxide PbO this way. The study of the optical properties of these films and through recording the absorbance spectrum and transmittance spectrum of films prepared in the wavelength range (300-1100) nm . Optical constant for thin films prepared such as absorption coefficient, the extinction coefficient , the refractive index and the optical energy gap was calculated as well. films prepared found that it has a direct energy gap value 3.1eV.

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Crystal Structure and Growth Mechanism of Lead Monoxide Thin Films Produced by Pulsed Laser Deposition

Cited by 12 publications

References 4 publications

Optical and structural studies on spray deposited α-PbO thin films

Optical and structural studies on spray deposited α-PbO thin films

Photoelectrochemical Properties of α-PbO Films Prepared by Spray Pyrolysis

Constructing Spray Pyrolysis System for the Preparation of Thin Films and Study the Optical Properties of PbO Films

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