Coalescence driven size-controlled synthesis of ITO nanospheres

Kang, Jihun; Uthirakumar, Periyayya; Katharria, Y. S.; Ryu, Jae Hyoung; Kim, H.K.; Kim, H.Y.; Han, Nam; Park, Y.J.; Beak, Yun Seon; Kim, S.M.; Hong, Chang–Hee

doi:10.1016/j.apsusc.2012.05.137

Cited by 4 publications

(4 citation statements)

References 36 publications

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“…13 Solutionbased approaches, including solvothermal synthesis and the V C 2013 Wiley Periodicals, Inc. coprecipitation method, have gained more popularity over the deposition approach. Kanga et al 14 reported that ITO nanospheres of various sizes can be synthesized by the selective etching of ITO thin films with diluted HCl solution as the etchant. Moreover, the sizes of the ITO nanospheres can be readily controlled by variation of the thicknesses of the ITO films.…”

Section: CLmentioning

confidence: 99%

Fabrication and properties of nano indium tin oxide/wool keratin composites

Wen

et al. 2013

J of Applied Polymer Sci

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A functional keratin/indium tin oxide (ITO) composite was prepared by a route involving an ionic liquid dissolving process and a wet-chemical codeposition technique. The crystal structure and morphology of ITO were investigated by X-ray diffraction and transmission electron microscopy, respectively. The factors influencing the crystal structure and the size of the ITO were investigated in detail. The optimal In/Sn ratio, reaction temperature, and pH value were found to be 10:1, 70 C, and 7, respectively. The sheet resistance of the composite reached 0.39 kX/ w . In addition, the composite films possessed a perfect UV protection ability with a UV protection factor of up to 43.78.

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Section: CLmentioning

confidence: 99%

Fabrication and properties of nano indium tin oxide/wool keratin composites

Wen

et al. 2013

J of Applied Polymer Sci

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“…To prepare ITO‐NPs acting as the OS soldering material, we perform wet etching of a 15‐nm‐thick ITO film coated on a glass substrate by e‐beam evaporation [ 37 ] (see Experimental Section; Figure S1, Supporting Information). The lateral size and height of the prepared nanoparticles are assessed by SEM (Figure S3, Supporting Information) and AFM (Figure S4, Supporting Information), respectively.…”

Section: Resultsmentioning

confidence: 99%

Optical Soldering of MoS₂ Layers for Defect Structure Formation with Induced Photoluminescence

Moon

Kim

Lee

et al. 2022

Advanced Optical Materials

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Local manipulation of the defect structures in 2D semiconducting transition metal dichalcogenide (2D TMD) opens rich research avenues harnessing their unique optoelectronic properties, where reliable defect structure formation methods are highly desirable. Here, the concept of optical soldering (OS) on few‐layer MoS2 to form site‐selective defect structures with induced photoluminescence (PL) is proposed and demonstrated. OS is initiated by optical heating of the top MoS2 layer to elevate the local temperature above the melting point of the underlying indium‐tin‐oxide nanoparticles (ITO‐NPs). In turn, thermally deformed ITO‐NPs pull the top MoS2 layer down to the substrate, forming the OS‐induced defect structure on the optically irradiated region. The OS‐induced defect structures on a few‐layer MoS2 show bright PL, which can be manipulated in peak positions by varying the incident optical power and irradiation time. OS is a facile method for local defect structure patterning on few‐layer MoS2 and manipulation of their optoelectronic properties while requiring low incidence optical power (≈2.5 mW) and fast process time (≈1 s), which are beneficial in the development of 2D TMD material‐based applications.

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“…In this study, a simple wet-etching process using a dilute HCl acid solution followed by rapid-thermal annealing was used to form ITO nanodots (NDs). This method is effective in producing highly crystalline and size-controlled ITO NDs by controlling the thickness of theITO films and acid concentration [20]. Here, we investigatehow hybrid ITO ND/Ag NW electrodes affect the electrical and optical properties of NUV (385 nm) LEDs.…”

mentioning

confidence: 98%

“…This enhancement was attributed to the reduced sheet resistance and contact resistance. For the fabrication of ITO nanostructures, there are two types of methods: (1) thin film deposition; (2) solution-based synthesis [20]. Deposition-based methods, such as avapor evaporation process, spray pyrolysis, and pulsed laser deposition, have poor control over the size of ITO nanoparticles.…”

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confidence: 99%

Compound Ag nanocluster-graphene electrodes as transparent and current spreading electrodes for improved light output power in near-ultraviolet light emitting diodes

Seo¹,

Kim²,

Kim³

et al. 2014

J. Phys. D: Appl. Phys.

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Indium tin oxide (ITO) nanodots (NDs) were combined with Ag nanowires (Ag NWs) as a p-type electrode in near ultraviolet AlGaN-based light-emitting diodes (LEDs) to increase light output power. The Ag NWs were 30 ± 5 nm in diameter and 25 ± 5 μm in length. The transmittance of 10 nm-thick ITO-only was 98% at 385 nm, while the values for ITO ND/Ag NW were 83%-88%. ITO ND/Ag NW films showed lower sheet resistances (32-51 Ω sq −1) than the ITO-only film (950 Ω sq −1). LEDs (chip size: 300×800 μm 2) fabricated usingthe ITO NDs/Ag NW electrodes exhibited higher forward-bias voltages (3.52-3.75 V at 20 mA) than the LEDs with the 10 nm-thick ITO-only electrode (3.5 V). The LEDs with ITO ND/Ag NW electrodes yielded a 24%-62% higher light output power (at 20 mA) than those with the 10 nmthick ITO-only electrode. Furthermore, finite-difference time-domain (FDTD) simulations were performed to investigate the extraction efficiency. Based on the emission images and FDTD simulations, the enhanced light output with the ITO ND/Ag NW electrodes is attributed toimproved current spreading and better extraction efficiency.

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Coalescence driven size-controlled synthesis of ITO nanospheres

Cited by 4 publications

References 36 publications

Fabrication and properties of nano indium tin oxide/wool keratin composites

Fabrication and properties of nano indium tin oxide/wool keratin composites

Optical Soldering of MoS₂ Layers for Defect Structure Formation with Induced Photoluminescence

Compound Ag nanocluster-graphene electrodes as transparent and current spreading electrodes for improved light output power in near-ultraviolet light emitting diodes

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Coalescence driven size-controlled synthesis of ITO nanospheres

Cited by 4 publications

References 36 publications

Fabrication and properties of nano indium tin oxide/wool keratin composites

Fabrication and properties of nano indium tin oxide/wool keratin composites

Optical Soldering of MoS2 Layers for Defect Structure Formation with Induced Photoluminescence

Compound Ag nanocluster-graphene electrodes as transparent and current spreading electrodes for improved light output power in near-ultraviolet light emitting diodes

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Product

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Optical Soldering of MoS₂ Layers for Defect Structure Formation with Induced Photoluminescence