Facile deposition and characterization of large area highly conducting and transparent Sb-doped SnO2 thin film

Ramarajan, R.; Kovendhan, M.; Thangaraju, K.; Joseph, D. Paul; Babu, R. Ramesh

doi:10.1016/j.apsusc.2019.05.079

Cited by 61 publications

(40 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Commonly used doped variants of SnO 2 contain Fat the anion site which is a good candidate to replace ITO and possesses a resistivity of $ 4 Â 10 À4 X cm and an over 80% transmittance [12][13][14]. Additionally, antimony (Sb) with a resistivity of around 6 Â 10 À4 X cm and approximately 80% transmittance [15][16][17] and tantalum (Ta) [11,18] at the cation site can also be used as dopants to improve conductivity. Consequently, research on doped SnO 2 is crucial for discovering alternative TCO materials.…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

“…To date, a wide variety of synthetic pathways towards doped SnO 2 thin films have been reported including magnetron sputtering, [19] pulsed laser deposition (PLD) [20,21], spin coating [22][23][24], spray pyrolysis [15,25,26] and aerosol-assisted chemical vapour deposition (AACVD) [11,12,27]. AACVD is a variant of conventional CVD which depends on carrier gas transporting precursor aerosols to the deposition zone with elevated temperature.…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A novel and potentially scalable CVD-based route towards SnO2:Mo thin films as transparent conducting oxides

Nikiel

Thomas

et al. 2021

J Mater Sci

View full text Add to dashboard Cite

In this report, we prepared transparent and conducting undoped and molybdenum-doped tin oxide (Mo–SnO2) thin films by aerosol-assisted chemical vapour deposition (AACVD). The relationship between the precursor concentration in the feed and in the resulting films was studied by energy-dispersive X-ray spectroscopy, suggesting that the efficiency of doping is quantitative and that this method could potentially impart exquisite control over dopant levels. All SnO2 films were in tetragonal structure as confirmed by powder X-ray diffraction measurements. X-ray photoelectron spectroscopy characterisation indicated for the first time that Mo ions were in mixed valence states of Mo(VI) and Mo(V) on the surface. Incorporation of Mo6+ resulted in the lowest resistivity of $$7.3 \times 10^{{ - 3}} \Omega \,{\text{cm}}$$ 7.3 × 10 - 3 Ω cm , compared to pure SnO2 films with resistivities of $$4.3\left( 0 \right) \times 10^{{ - 2}} \Omega \,{\text{cm}}$$ 4.3 0 × 10 - 2 Ω cm . Meanwhile, a high transmittance of 83% in the visible light range was also acquired. This work presents a comprehensive investigation into impact of Mo doping on SnO2 films synthesised by AACVD for the first time and establishes the potential for scalable deposition of SnO2:Mo thin films in TCO manufacturing. Graphical abstract

show abstract

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Section: Graphical Abstract Introductionmentioning

confidence: 99%

A novel and potentially scalable CVD-based route towards SnO2:Mo thin films as transparent conducting oxides

Nikiel

Thomas

et al. 2021

J Mater Sci

View full text Add to dashboard Cite

show abstract

“…Various techniques were used to deposit SnO 2 material, for instance sol-gel, chemical vapor deposition (CVD), metal organic deposition, and radio frequency (RF) sputtering. The latter was adopted in this work due to its successful use in the processing of thin, adherent, stable, and reproducible films [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Embedded Transdermal Alcohol Detection via a Finger Using SnO2 Gas Sensors

Annanouch

Martini-Laithier

Fiorido

et al. 2021

Sensors

View full text Add to dashboard Cite

In this paper, we report the fabrication and characterization of a portable transdermal alcohol sensing device via a human finger, using tin dioxide (SnO2) chemoresistive gas sensors. Compared to conventional detectors, this non-invasive technique allowed us the continuous monitoring of alcohol with low cost and simple fabrication process. The sensing layers used in this work were fabricated by using the reactive radio frequency (RF) magnetron sputtering technique. Their structure and morphology were investigated by means of X-ray spectroscopy (XRD) and scanning electron microscopy (SEM), respectively. The results indicated that the annealing time has an important impact on the sensor sensitivity. Before performing the transdermal measurements, the sensors were exposed to a wide range of ethanol concentrations and the results displayed good responses with high sensitivity, stability, and a rapid detection time. Moreover, against high relative humidity (50% and 70%), the sensors remained resistant by showing a slight change in their gas sensing performances. A volunteer (an adult researcher from our volunteer group) drank 50 mL of tequila in order to realize the transdermal alcohol monitoring. Fifteen minutes later, the volunteer’s skin started to evacuate alcohol and the sensor resistance began to decline. Simultaneously, breath alcohol measurements were attained using a DRAGER 6820 certified breathalyzer. The results demonstrated a clear correlation between the alcohol concentration in the blood, breath, and via perspiration, which validated the embedded transdermal alcohol device reported in this work.

show abstract

“…[26,27] Previous studies of ATO coatings deposited by ultrasonic spray pyrolysis have individually and unsystematically explored the structural, electrical, and optical properties of the deposited films by altering some of the key parameters including dopant concentration, film thickness, and processing temperature. [28][29][30][31][32] However, a comprehensive investigation of these parameters and a deeper understanding of their role is still required to generate reproducible, high performance ATO films.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Spray Pyrolysis of Antimony‐Doped Tin Oxide Transparent Conductive Coatings

Kim

Murdoch

Partridge

et al. 2020

Adv Materials Inter

View full text Add to dashboard Cite

Transparent conducting oxides are fundamental for the fabrication of optoelectronic devices including touchscreen displays, solar cells, and light emitting diodes. However, they mostly rely on rare elements and expensive vacuum‐based deposition methods that negatively affect the overall cost of optoelectronics. Here, a detailed investigation on the synthesis of antimony‐doped tin oxide films using an ultrasonic spray coating system is presented. High‐quality, crystalline SnO2 films are deposited via decomposition of metal precursors sprayed directly onto hot (>400 °C) substrates. Doping is easily achieved by adding the dopant salt to the spray solution, and the presence of the dopant atoms heavily influences the optical, electrical, and structural properties of SnO2. These coatings are characterized using a comprehensive suite of techniques including X‐ray diffraction, electron microscopy, X‐ray and ultraviolet photoelectron spectroscopies, Hall effect measurements, optical spectroscopy in the visible and near infrared, and atomic force microscopy, in order to elucidate the relationship between the synthetic conditions and functional properties. Through a careful optimization process, Sb‐doped SnO2 coatings showing transmittance values in the visible spectrum between 80% and 90%, and sheet resistances of 10–20 Ω/sq−1 are achieved. Such values are suitable for immediate applications of these Sb‐doped SnO2 films as high‐performance transparent conductors.

show abstract

Facile deposition and characterization of large area highly conducting and transparent Sb-doped SnO2 thin film

Cited by 61 publications

References 58 publications

A novel and potentially scalable CVD-based route towards SnO2:Mo thin films as transparent conducting oxides

A novel and potentially scalable CVD-based route towards SnO2:Mo thin films as transparent conducting oxides

Embedded Transdermal Alcohol Detection via a Finger Using SnO2 Gas Sensors

Ultrasonic Spray Pyrolysis of Antimony‐Doped Tin Oxide Transparent Conductive Coatings

Contact Info

Product

Resources

About