Zinc diketonates as single source precursors for ZnO nanoparticles: microwave-assisted synthesis, electrophoretic deposition and field-effect transistor device properties

Hoffmann, Rudolf C.; Sanctis, Shawn; Erdem, Emre; Weber, Stefan; Schneider, Jörg J.

doi:10.1039/c6tc02489k

Cited by 17 publications

(16 citation statements)

References 37 publications

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“…Prospectively, the requirements for fine tuning of structure and optical properties of the resulting aluminum hydroxide materials prompted the development of new synthesis methods. As an alternative synthetic route, single‐source precursor decomposition providing both metal and capping ligand molecules from a single chemical entity is a facile approach which has been successfully used in fabrication of metal oxides materials . In this study, we extended this method to achieve simultaneous synthesis of the aluminum hydroxide with the introduction of desirable impurities in one step, which resulted in highly luminescent mesoporous aluminum hydroxide materials with wide PL spectrum stretching over 400–550 nm spectral range, and the absolute PL QYs reaching 65%.…”

Section: Luminous Efficiencies (Le) Cie Coordinates (X Y) Color Comentioning

confidence: 99%

Mesoporous Aluminum Hydroxide Synthesized by a Single‐Source Precursor‐Decomposition Approach as a High‐Quantum‐Yield Blue Phosphor for UV‐Pumped White‐Light‐Emitting Diodes

et al. 2016

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Strongly emissive (photoluminescence quantum yield up to 65%), thermally stable aluminum hydroxide blue phosphors are synthesized by a single-source precursor-decomposition approach. Blue-emitting UV-pumped light-emitting diodes (LEDs) based on the aluminum hydroxide phosphor reach luminous efficiency of 27.5 lm W , while UV-white-LEDs integrating blue-emitting aluminum hydroxide and red-emitting CuInS nanocrystals achieve high color-rendering-index values of 94.3 and luminous efficiency of 23.5 lm W .

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Section: Luminous Efficiencies (Le) Cie Coordinates (X Y) Color Comentioning

confidence: 99%

Mesoporous Aluminum Hydroxide Synthesized by a Single‐Source Precursor‐Decomposition Approach as a High‐Quantum‐Yield Blue Phosphor for UV‐Pumped White‐Light‐Emitting Diodes

et al. 2016

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“…Hence, precursor materials like zinc acetate [5,6,9,12,17] and zinc nitrate [9,32,34] have been widely utilized to obtain ZnO films by decomposing the precursors. In addition to this a number of novel processing chemistry based on combustion synthesis [13,38], metal alkoxide precursor [10], single source tailored organo-complex precursors [39,40] and photosensitive precursors [11,12,41,42] have also been demonstrated to exhibit excellent performance in metal oxide devices. Towards this end, we explore the usability of non-aqueous precursor zinc neodecanoate, referred henceforth as Zn(NDN), as a novel precursor material for ZnO based electronics with further prospects of fabrication steps being compatible with nanoscale directwriting through electron-beam exposure [43,44].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Transistor Characteristics and Charge Transport in Solution Processed ZnO Thin Films Grown from Zinc Neodecanoate

Tiwale

Senanayak

Rubio‐Lara

et al. 2019

Electron. Mater. Lett.

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Solution processing of metal oxide-based semiconductors is an attractive route for low-cost fabrication of thin films devices. ZnO thin films were synthesized from one-step spin coating-pyrolysis technique using zinc neodecanoate precursor. X-ray diffraction (XRD), UV-visible optical transmission spectrometry and photoluminescence spectroscopy suggested conversion to polycrystalline ZnO phase for decomposition temperatures higher than 400 °C. A 15 % precursor concentration was found to produce optimal TFT performance on annealing at 500 °C, due to generation of sufficient charge percolation pathways. The device performance was found to improve upon increasing the annealing temperature and the optimal saturation mobility of 0.1 cm 2 V −1 s −1 with I ON /I OFF ratio ~ 10 7 was achieved at 700 °C annealing temperature. The analysis of experimental results based on theoretical models to understand charge transport envisaged that the grain boundary depletion region is major source of deep level traps and their effective removal at increased annealing temperature leads to evolution of transistor performance.

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“…In a lower range of particle size [11,12,13], ZnO-based films made on aligned nanoparticles (20-35 nm in diameter) leads to high packing green density and room transparency even previously to the sintering process [12]. In those publications, the difference in charge of ZnO basal planes determines the massive adsorption of the stabilizer (branched PEI) in one side of the nanoflake, setting their hydrodynamic behaviour and then fashioning deposition.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical performance of pseudo-capacitor electrodes fabricated by Electrophoretic Deposition inducing Ni(OH)2 nanoplatelets agglomeration by Layer-by-Layer

González

Yus

Caballero

et al. 2017

Electrochimica Acta

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The electrochemical behaviour of ceramic semiconductors not only depends on the characteristics of the electroactive material but also on the processing method, the nanoparticles arrangement and the consolidation degree of the formed microstructure. In this sense, the use of nanoparticles with plane morphologies (disc, platelets, etc.) results interesting due to the formation of conduction pathways produced as a consequence of their laminar structures. Electrophoretic Deposition (EPD) is a shaping methodology which allows achieving high degrees in nanoplatelets packing by controlling their alignment during the coating process specifically over 3D substrates. In this work, we have studied the effect of a moderate nanoplatelets 2 agglomeration, by tuning their surfaces with a polyelectrolyte multilayer following a Layer-by-Layer (LbL) methodology and fixing the electric conditions of the EPD process. Overcoming the destructive effects of the full agglomeration of nanoplatelets, NiO films with a stable and extremely open macroporous structure were processed to coat Ni foams, improving the capacitive performance of pseudocapacitors leading to values of specific capacitances of 650 F/g. Results collected in this work also evidence that an efficient ordering and orientation of nanoplatelets in EPD mainly depends on tuning the suspension parameters (solid contents, conductivity, electrophoretic mobility, etc.) to avoid the massive flux and interactions among interparticles and electrohydrodynamic forces, as well as the interference of collateral electrode phenomena.

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Zinc diketonates as single source precursors for ZnO nanoparticles: microwave-assisted synthesis, electrophoretic deposition and field-effect transistor device properties

Abstract: Variation of the ligand framework in 1,3-substituted zinc-diketonates provides a straightforward way to control size, morphology and electronic properties of semiconducting zinc oxide nanoparticles.

Cited by 17 publications

References 37 publications

Mesoporous Aluminum Hydroxide Synthesized by a Single‐Source Precursor‐Decomposition Approach as a High‐Quantum‐Yield Blue Phosphor for UV‐Pumped White‐Light‐Emitting Diodes

Mesoporous Aluminum Hydroxide Synthesized by a Single‐Source Precursor‐Decomposition Approach as a High‐Quantum‐Yield Blue Phosphor for UV‐Pumped White‐Light‐Emitting Diodes

Optimization of Transistor Characteristics and Charge Transport in Solution Processed ZnO Thin Films Grown from Zinc Neodecanoate

Electrochemical performance of pseudo-capacitor electrodes fabricated by Electrophoretic Deposition inducing Ni(OH)2 nanoplatelets agglomeration by Layer-by-Layer

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