Deposition and characterization of pure and Cd doped SnO2 thin films by the nebulizer spray pyrolysis (NSP) technique

Mariappan, R.; Ponnuswamy, V.; Suresh, P.; Suresh, R.; Ragavendar, M.; Sankar, Cheriyedath Raj

doi:10.1016/j.mssp.2013.01.006

Cited by 53 publications

(17 citation statements)

References 30 publications

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“…The negative temperature coefficient of the resistance was observed previously for different percolating networks of nanoparticles [8,16,17]. Furthermore, the results expose that sensor resistances are dominated by SnO 2 which is consistent with published values of resistivity: ρ CuO = 18 Ω m [18] and ρ SnO2 ~ 85 Ω m [19] at room temperature.…”

Section: Resultssupporting

confidence: 90%

Production of sensitive gas sensors using CuO/SnO2 nanoparticles

et al. 2019

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Metal oxide nanoparticles, such as CuO and SnO 2 , are outstanding systems for H 2 S gas sensing in air. In this work, those nanoparticles were deposited with different mixing percentages on substrates to form percolating networks of nanoparticles. Electrical electrodes were deposited on the nanoparticles' films to investigate their gas sensing response against H 2 and H 2 S, and their electrical characteristics. The sensor devices based on CuO-SnO 2 nanoparticles revealed enhanced sensing characteristics against H 2 S with a sensitivity of 10 ppm. The enhanced sensing characteristics could be attributed to the formation of PN-junctions among CuO and SnO 2 nanoparticles. The reasonable production cost (due to simple structure and cheap used materials), low power consumption (~ 1 µW for H 2 S at room temperature), high sensitivity, high response, and reasonable response time of the present sensors qualify them for practical implementation in portable gas sensing devices with enhanced characteristics.

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Section: Resultssupporting

confidence: 90%

Production of sensitive gas sensors using CuO/SnO2 nanoparticles

et al. 2019

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“…This technique can be ascendable to large area deposition. NSP technique has been widely used to deposit binary, ternary and chalcogenide thin films [22][23][24][25][26][27]. In the present investigation, the binary In 2 S 3 thin films have been deposited on the micro glass substrate by NSP technique for different precursor concentrations 1 depicts a schematic diagram of a simple nebulizer which is also named as "atomizer".…”

Section: Introductionmentioning

confidence: 99%

Effect of precursor concentration on physical properties of nebulized spray deposited In₂S₃ thin films

Mohamed¹,

Amalraj²

2016

Journal of Asian Ceramic Societies

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The present work investigates the effect of precursor concentration (m c) on the structural, optical, morphological and electrical conductivity properties of In 2 S 3 thin films grown on amorphous glass substrates by nebulized spray pyrolysis (NSP) technique. The mixed phase of cubic and tetragonal structure of In 2 S 3 thin films at higher concentration has been observed by X-ray diffraction pattern. The reduced strain by increasing the precursor concentration increased the average crystallite from 17.8 to 28.9 nm. The energy dispersive analysis by X-ray (EDAX) studies confirmed the presence of In and S. The transmittance, optical direct band gap energy, Urbach energy and skin depth of In 2 S 3 films have been analyzed by optical absorption spectra. The better conductivity and mobility noticed at m c = 0.15 M are explained by carrier concentration and crystallite. Better optical and electrical conductivity behaviour of In 2 S 3 thin film sample proposes for effective solar cell fabrication.

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“…Nebulized spray pyrolysis technique is simple and cost effective by which an efficient way of growing thin films is possible. Binary and ternary semiconductor oxide thin films such as MgO [17], tin doped zinc oxide [18], and Cd-doped SnO 2 [19] have been deposited by NSP technique. A ternary chalcogenide CdSnSe thin film had also been deposited by this technique [20].…”

Section: Introductionmentioning

confidence: 99%

Influence of substrate temperature on physical properties of (111) oriented CdIn₂S₄ thin films by nebulized spray pyrolysis technique

Mohamed¹,

Sanjeeviraja

Amalraj³

2016

Journal of Asian Ceramic Societies

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In this work, we present the substrate temperature influenced change in the structural, optical, morphological, and electrical conductivity properties of CdIn 2 S 4 thin films deposited on amorphous glass substrates by nebulized spray pyrolysis (NSP) technique. X-ray diffraction pattern revealed that the asdeposited CdIn 2 S 4 thin films had a cubic structure with a preferred orientation along (111) plane. The reduced strain by increasing the substrate temperature from 200 to 350 • C increased the average crystalline size from 17 to 33 nm while the formation of secondary phases such as CdIn 2 O 4 and In 2 O 3 reduced it to 21 nm after the substrate temperature at 450 • C. The energy dispersive analysis by X-ray (EDAX) studies confirmed the presence of Cd, In, and S. The absorption coefficient, direct band gap energy, Urbach energy, skin depth, and extinction coefficient of CdIn 2 S 4 films were analyzed by optical absorption spectra. The better conductivity and mobility noticed at T s = 350 • C are explained by carrier concentration and crystalline size. Better optical and electrical conductivity behavior of CdIn 2 S 4 thin film sample suggests for effective PEC solar cell fabrication.

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Deposition and characterization of pure and Cd doped SnO2 thin films by the nebulizer spray pyrolysis (NSP) technique

Cited by 53 publications

References 30 publications

Production of sensitive gas sensors using CuO/SnO2 nanoparticles

Production of sensitive gas sensors using CuO/SnO2 nanoparticles

Effect of precursor concentration on physical properties of nebulized spray deposited In₂S₃ thin films

Influence of substrate temperature on physical properties of (111) oriented CdIn₂S₄ thin films by nebulized spray pyrolysis technique

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Deposition and characterization of pure and Cd doped SnO2 thin films by the nebulizer spray pyrolysis (NSP) technique

Cited by 53 publications

References 30 publications

Production of sensitive gas sensors using CuO/SnO2 nanoparticles

Production of sensitive gas sensors using CuO/SnO2 nanoparticles

Effect of precursor concentration on physical properties of nebulized spray deposited In2S3 thin films

Influence of substrate temperature on physical properties of (111) oriented CdIn2S4 thin films by nebulized spray pyrolysis technique

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Effect of precursor concentration on physical properties of nebulized spray deposited In₂S₃ thin films

Influence of substrate temperature on physical properties of (111) oriented CdIn₂S₄ thin films by nebulized spray pyrolysis technique