Spray pyrolyzed fluorinated inorganic-organic passivation for solution-processed a-InZnO thin-film transistors

Safaruddin, Aimi Syairah; Bermundo, Juan Paolo; Jallorina, Michael Paul A.; Yamamoto, Atsuko; Uraoka, Yukiharu

doi:10.1016/j.mssp.2022.106669

Cited by 3 publications

(1 citation statement)

References 34 publications

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“…With the enhancement of people's awareness of environmental protection and the government's strict restrictions on the use and emission of chromate, the development of chromium-free passivation technology is imperative, and good experimental results have been achieved [10,11]. At present, the chromium-free passivation process of galvanized layers used and studied at home and abroad mainly includes three categories: inorganic passivation, organic passivation, and inorganic and organic composite passivation process [12][13][14][15][16][17][18][19][20][21][22][23]. The inorganic passivation system mainly includes silicate passivation, molybdate passivation, titanium passivation, tungstate passivation, etc [24][25][26][27][28][29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Inhibition of Surface Corrosion Behavior of Zinc-Iron Alloy by Silicate Passivation

Cao

et al. 2023

Coatings

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The passivation of zinc alloy coating was achieved through the utilization of both silicate and trivalent chromium passivation systems, employing a specific process formula consisting of Co(NO3)2 at a concentration of 2.5 g/L, C76H52O46 at 3 mL/L, Na2SiO3 at 25 g/L, C6H5Na3O7 at 15 g/L, and an appropriate amount of organic accelerator. The composite passivation of silicate and tannic acid was found to be more effective than the trivalent chromium passivation film, as it successfully eliminated the dendrite structure on the coating surface and reduced surface defects. The coordination between negatively charged SiO2− or SiO2 micelles and Zn2+ results in the formation of a passivation film that exhibits lower corrosion current and higher corrosion potential compared to the trivalent chromium passivation film. Additionally, the impedance test fitting results indicate that the silicate passivation film possesses a higher resistance value. Overall, the proposed silicate passivation system presents a viable alternative to the toxic chromate passivation system, offering non-toxicity and superior protective performance relative to the trivalent chromium passivation system.

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Section: Introductionmentioning

confidence: 99%

Inhibition of Surface Corrosion Behavior of Zinc-Iron Alloy by Silicate Passivation

Cao

et al. 2023

Coatings

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Enhanced stability in InSnO transistors via ultrathin in-situ AlOx passivation

Li,

Chen,

Gao

et al. 2024

Applied Surface Science

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Significant performance and stability improvement of low-voltage InZnO thin-film transistors by slight La doping

Cai

et al. 2022

Applied Physics Letters

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Low-voltage, solution-processed oxide thin-film transistors (TFTs) have shown great potential in next-generation low-power, printable electronics. However, it is now still quite challenging to obtain low-voltage oxide TFTs with both high mobility and stability, especially for solution-processed ones. In this work, La-doped InZnO (IZO:La) channel for high performance and stable TFTs is developed using a simple solution process. The effects of La composition in IZO:La on the film and TFT performance are systematically investigated. It is confirmed that the incorporation of appropriate La could control the carrier concentration, improve the surface morphology, and passivate the oxygen-related defects, leading to a reduced trap density both at dielectric/channel interface and within the channel layer. As a result, the optimized TFTs with 1% La dopants exhibit the best overall performance, including a low operating voltage of 1 V, a high mobility of 14.5 cm2/V s, a low subthreshold swing of 109 mV/dec, a turn-on voltage close to 0 V, and negligible changes of performance under both positive and negative bias stresses. This work might support the development of all-solution-processed oxide TFT backplanes for battery-powered active-matrix displays.

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Spray pyrolyzed fluorinated inorganic-organic passivation for solution-processed a-InZnO thin-film transistors

Cited by 3 publications

References 34 publications

Inhibition of Surface Corrosion Behavior of Zinc-Iron Alloy by Silicate Passivation

Inhibition of Surface Corrosion Behavior of Zinc-Iron Alloy by Silicate Passivation

Enhanced stability in InSnO transistors via ultrathin in-situ AlOx passivation

Significant performance and stability improvement of low-voltage InZnO thin-film transistors by slight La doping

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