Synthesis of indium tin oxide (ITO) nanoparticles in supercritical methanol

Shong, Bonggeun; Shin, Naechul; Lee, Young-Ho; Ahn, Ki Ho; Lee, Youn-Woo

doi:10.1016/j.supflu.2016.03.002

Cited by 19 publications

(4 citation statements)

References 48 publications

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“…In order to understand the changes in shunt and series resistances of the PSCs with varying the Sn fraction in In general, crystalline commercial ITO (Sn fraction:~10 at%) thin films used for TCO are characterized by a carrier concentration of~10 21 /cm 3 . Many studies have considered the effect of low Sn content (Sn fraction:~10 at%) on the properties of ITO films [47][48][49][50]. However, the effect of high Sn fraction, especially in the case of the amorphous phase, remains unexplored.…”

Section: Resultsmentioning

confidence: 99%

Room-Temperature-Processed Amorphous Sn-In-O Electron Transport Layer for Perovskite Solar Cells

et al. 2019

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We report amorphous tin-indium-oxide (TIO, Sn fraction: >50 atomic percentage (at%)) thin films as a new electron transport layer (ETL) of perovskite solar cells (PSCs). TIO thin films with Sn fraction of 52, 77, 83, 92, and 100 at% were grown on crystalline indium-tin-oxide (ITO, Sn fraction: ~10 at%) thin films, a common transparent conducting oxide, by co-sputtering In2O3 and SnO2 at room temperature. The energy band structures of the amorphous TIO thin films were determined from the optical absorbance and the ultraviolet photoelectron spectra. All the examined compositions are characterized by a conduction band edge lying between that of ITO and that of perovskite (here, methylammonium lead triiodide), indicating that TIO is a potentially viable ETL of PSCs. The photovoltaic characteristics of the TIO-based PSCs were evaluated. Owing mainly to the highest fill factor and open circuit voltage, the optimal power conversion efficiency was obtained for the 77 at%-Sn TIO ETL with TiCl4 treatment. The fill factor and the open circuit voltage changes with varying the Sn fraction, despite similar conduction band edges. We attribute these differences to the considerable changes in the electrical resistivity of the TIO ETL. This would have a significant effect on the shunt and/or the series resistances. The TIO ETL can be continuously grown on an ITO TCO in a chamber, as ITO and TIO are composed of identical elements, which would help to reduce production time and costs.

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Section: Resultsmentioning

confidence: 99%

Room-Temperature-Processed Amorphous Sn-In-O Electron Transport Layer for Perovskite Solar Cells

et al. 2019

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“…It is typically deposited on the substrate by sputtering during which a large amount of Indium is wasted. Therefore, it is imperative to develop appropriate synthetic routes to produce ITO [26]. ITO nanoparticles are known to be synthesized broadly via anyone of the following three methods.…”

Section: Introductionmentioning

confidence: 99%

ITO Conductive Ink: Advances in Materials, Preparation, and Potential Sensor Applications

Hiroli

Manjunatha

2022

ECS Trans.

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The global conductive ink market size has been expected around a CAGR of 4.1%, by value and the market is estimated to be USD 3.0 to 3.7 billion in 2020-2025. Indium tin oxide (ITO) ink is used as conducting ink and in engineering applications. Therefore, the review is aimed to provide more insights into various reactants precursors, conditions, and synthesis procedure for the development of ITO nano inks. The merits and demerits of the various methods such as hydrothermal, solvothermal, spray pyrolysis, sol-gel, and electrophoretic deposition, magnetron sputtering etc., used for making ITO nanoparticles were discussed in detail. Further, various ink properties, parameters, and processes for development of ITO nano ink proposed by different research groups is also discussed. The suitable conditions to print the prepared ITO ink on suitable substrate using ink-jet fabrication methodology discussed by various research groups is also explored. Also, the review focusses on the study of the properties of the printed ink such as transmittance and the sheet resistance are also studied. Finally, the sensitivity, response, and recovery of the ITO coated electrode developed for various sensor applications is discussed in detail.

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“…As for oxides, many of them show poor instinctive conductivity, which makes them inappropriate for the electrocatalysis process. However, indium tin oxide (ITO) is a highly conductive semiconductor with a conductivity of (1–5) × 10 3 S/cm as thin films and 10 –3 to 10 S/cm as nanoparticles. − ITO can remain stable in alkaline environments and work at high voltages . Many researchers have reported ITO conductive glass or ITO nanoparticles as supports for the OER. , However, to the best of our knowledge, limited literature refers to the nanostructure of ITO, which can bring a large specific area for active sites.…”

Section: Introductionmentioning

confidence: 99%

Porous Indium Tin Oxide-Supported NiFe LDH as a Highly Active Electrocatalyst in the Oxygen Evolution Reaction and Flexible Zinc–Air Batteries

Chen

et al. 2021

ACS Appl. Mater. Interfaces

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The oxygen evolution reaction (OER) is crucial for hydrogen production from water splitting and rechargeable metal−air batteries. However, the four-electron mechanism results in slow reaction kinetics, which needed to be accelerated by efficient catalysts. Herein, a hybrid catalyst of novel nickel−iron layered double hydroxide (NiFe LDH) on porous indium tin oxide (ITO) is presented to lower the overpotential of the OER. The as-prepared NiFe LDH@ITO catalyst showed superior catalytic activity toward the OER with an overpotential of only 240 mV at a current density of 10 mA/cm 2 . The catalyst also offered high stability with almost no activity decay after more than 200 h of chronopotentiometry test. Furthermore, the applications of NiFe LDH@ITO in (flexible) rechargeable zinc−air batteries exhibited a better performance than commercial RuO 2 and can remain stable in cycling tests. It is supposed that the superior catalytic behavior originates from the ITO conductive framework, which prevents the agglomeration and facilitates the electron transfer during the OER process.

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Synthesis of indium tin oxide (ITO) nanoparticles in supercritical methanol

Cited by 19 publications

References 48 publications

Room-Temperature-Processed Amorphous Sn-In-O Electron Transport Layer for Perovskite Solar Cells

Room-Temperature-Processed Amorphous Sn-In-O Electron Transport Layer for Perovskite Solar Cells

ITO Conductive Ink: Advances in Materials, Preparation, and Potential Sensor Applications

Porous Indium Tin Oxide-Supported NiFe LDH as a Highly Active Electrocatalyst in the Oxygen Evolution Reaction and Flexible Zinc–Air Batteries

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