Spray deposited localized surface plasmonic Au–ZnO nanocomposites for solar cell application

Tarwal, N.L.; Devan, Rupesh S.; Ma, Ye; Patil, R. S.; Karanjkar, M. M.; Patil, Pramod B.

doi:10.1016/j.electacta.2012.03.135

Cited by 48 publications

(21 citation statements)

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“…The observed red shift in the LSPR spectra is due to the increase in size of gold nanoparticles [26] and agglomeration of gold nanoparticles [2], which is accompanied by changes in materials and chemical properties. In addition, the plasmon bandwidth at half maximum increases with the size of gold nanoparticles (diameter larger than 22 nm) [26].…”

Section: Resultsmentioning

confidence: 99%

“…As a result, the equivalent circuit, depicted in Fig. 4d, includes only those components of the series, which (1) have the largest absolute value of the residuum |c i |; (2) pole |p i | lies on the left half-plane; (3) for the complex conjugate pole pair, Foster passivity condition is satisfied. The impedance measurement results were compared with the input impedance of the equivalent circuit, as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…SnO 2 , due to its unique properties, has been widely used for gas sensing, various photocatalytic applications, such as optical coatings and liquid crystal displays [1][2][3][4][5]. Indium tin dioxide (ITO) and antimony-doped tin dioxide (ATO) are used as anode material in organic light emitting diodes (OLEDs) [6].…”

Section: Introductionmentioning

confidence: 99%

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Electrical and optical properties of spin-coated SnO2 nanofilms

Izydorczyk

Waczyński

Izydorczyk

et al. 2014

Materials Science-Poland

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SnO 2 nanocrystalline thin films have been deposited on oxidized silicon substrates by spin-coating from a precursor solution, followed by slow thermal annealing in oxygen atmosphere at different temperatures (500 to 900°C). The precursor solution consisted of 1.0 to 2.0 M SnCl 4 ·5H 2 O in isopropanol. It was shown that the concentration of the precursor solution, annealing temperature and heating rate had a significant effect on the structural, optical and electrical properties of the studied thin films. The topography of SnO 2 thin films was examined by scanning electron microscopy (SEM). Furthermore, as-deposited films were characterized by X-ray diffraction (XRD), UV-Vis and impedance spectroscopy.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Electrical and optical properties of spin-coated SnO2 nanofilms

Izydorczyk

Waczyński

Izydorczyk

et al. 2014

Materials Science-Poland

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“…To obtain Au-NPs by spray pyrolysis either preformed nanoparticles are sprayed [13] or Au-NPs are generated via thermal decomposition of Au-precursor salts such as HAuCl4•nH2O, HAuCl4,14,15]. The previous thermoanalytical study has shown that the thermal decomposition of HAuCl4•3H2O into pure gold and gaseous products takes place as a gradual decomposition process in the temperature range of 75-320 °C in air.…”

Section: Introductionmentioning

confidence: 99%

“…The previous thermoanalytical study has shown that the thermal decomposition of HAuCl4•3H2O into pure gold and gaseous products takes place as a gradual decomposition process in the temperature range of 75-320 °C in air. Despite that, Au and AuCl were detected as the intermediate decomposition products at 240 °C [16].Au-NPs deposited in-situ by chemical spray pyrolysis method have been grown directly onto glass and ITO (indium tin oxide) covered glass substrates by ultrasonic spray pyrolysis [11,12] or deposited in combination with several metal oxide [11,12,14,15] and sulfides [10] matrixes. Moreover, it has been shown lately, that Au-NPs deposited in-situ by chemical spray pyrolysis method have enhanced the out-put characteristics of the solely sprayed thin film solar cell [17].…”

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confidence: 99%

In-situ deposition of gold nanoparticles onto different substrates by chemical spray pyrolysis

Açik

Oyekoya

Mere

et al. 2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Au-nanoparticles were deposited in-situ by chemical spray pyrolysis method onto glass and indium tin oxide (ITO) covered glass substrates in the temperature range of 260 to 400 °C. SEM studies showed that the number of Au-NPs increased and the particle size decreased with increasing the deposition temperature. The surface plasmon resonance effect of Au-NPs on glass substrate shifts from 550 to 520 nm with decreasing the mean crystallite size of Au-NPs from 49 to 24 nm. The surface plasmon resonance effect of Au-NPs on ITO substrate shift from 570 to 540 nm with decreasing the mean crystallite size of Au-NPs from 53 to 16 nm. IntroductionNoble metal nanoparticles (NPs) such as gold, silver and copper have attracted researchers' interest due to their unique plasmonic properties and potential applications in optics, nanoelectronics, biomedicine, catalysis and photovoltaics [1][2][3][4]. Spectral position of plasmon resonance depends on the size and shape of nanoparticles, distance between them and permittivity of environment and metal [5]. Metal nanoparticles have been deposited by several methods such as electrodeposition [6], sputtering [7], spin-coating [8,9] and spray pyrolysis [10][11][12].Chemical spray pyrolysis (CSP) is a low-cost material deposition method; here the solution of appropriate precursor materials is deposited in the form of fine droplets onto the preheated substrate where the growth of material takes place. To obtain Au-NPs by spray pyrolysis either preformed nanoparticles are sprayed [13] or Au-NPs are generated via thermal decomposition of Au-precursor salts such as HAuCl4•nH2O, HAuCl4,14,15]. The previous thermoanalytical study has shown that the thermal decomposition of HAuCl4•3H2O into pure gold and gaseous products takes place as a gradual decomposition process in the temperature range of 75-320 °C in air. Despite that, Au and AuCl were detected as the intermediate decomposition products at 240 °C [16].Au-NPs deposited in-situ by chemical spray pyrolysis method have been grown directly onto glass and ITO (indium tin oxide) covered glass substrates by ultrasonic spray pyrolysis [11,12] or deposited in combination with several metal oxide [11,12,14,15] and sulfides [10] matrixes. Moreover, it has been shown lately, that Au-NPs deposited in-situ by chemical spray pyrolysis method have enhanced the out-put characteristics of the solely sprayed thin film solar cell [17].

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