Plasma-etched nanoporous TiO<sub>2</sub>using Ag nanoparticle masks: application for photoanodes of dye-sensitized solar cells

Huang, Huai-Cheng; Chang, Haoming; Liu, Hsiao-Wei; Hsu, Cheng–Che; Chiu, I-Chung; Teng, Mao-Ying; Lai, Hong-Jen; Cheng, I-Chun; Chen, Jian-Zhang

doi:10.1088/2053-1591/1/2/025505

Cited by 5 publications

(2 citation statements)

References 52 publications

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“…In respect of preparing films composed of single crystal building blocks on metal substrates, Vapor-liquidsolid (VLS) methods are mostly adopted [41][42][43][44][45]. With the catalyst as the morphological template and adequate vapor/solid source [34], the morphology and size of products can be well-tuned [46,47]. The VLS routes are widely applied to manufacture various single-crystalline nanostructures of most II-VI [41], III-V compounds, and non-metal elements [43].…”

Section: Optimization and Mechanism Investigation Of Tio 2 Nanorod Ar...mentioning

confidence: 99%

Synthesis of uniformly ordered single-crystalline TiO₂ nanorods on flexible Ti substrate

Zhong,

Zheng

2023

Mater. Res. Express

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With high conductivity and ionic mobility, one-dimensional (1-D) titanium dioxide (TiO2) nanoarrays have attracted great interest in the photoanode of solar cells and the cathode of lithium-ion/sodium-ion batteries. However, the synthesis of TiO2 nanoarrays often requires highly toxic or corrosive solution circumstances. Meanwhile, the case that most TiO2 nanoarrays are grown on rigid conductive substrate can't satisfy the demand for application in the space of complex shape. In this work, we developed a simple method to prepare highly ordered single crystalline rutile TiO2 nanorod arrays with high density on flexible metal Ti substrate in relatively weak acid solution, and the orientation of the nanorods were more uniform than those by other means ever before. Based on detailed analysis, an ion-assisted and concentration-limited epitaxial growth mechanism by H+ and SO42- is proposed for this uniformly ordered rutile TiO2 nanorod array. This work can promote the research and application of flexible solar cells and lithium-ion batteries, especially their integration.

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Section: Optimization and Mechanism Investigation Of Tio 2 Nanorod Ar...mentioning

confidence: 99%

Synthesis of uniformly ordered single-crystalline TiO₂ nanorods on flexible Ti substrate

Zhong,

Zheng

2023

Mater. Res. Express

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“…9,10 Recently, screen-printing has attracted renewed interest owing to the search for low-cost fabrication processes for flexible/stretchable supercapacitors, 3,4 lithium ion batteries, 4 flexible/stretchable organic thin film transistors, [11][12][13] light emitting diodes, [12][13][14] flexible carbon nanotube thin film transistors, 10 thermoelectric modules, 1 RFIDs, 7 and dye-sensitized solar cells (DSSCs). 2,[15][16][17][18][19][20] We have applied the screen-printing technique to produce ceramictype metal oxides. Screen-printing administers the pastes containing the desired oxide nanoparticles with organic solvents or binders to maintain the required viscosity.…”

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confidence: 99%

Ultrafast Atmospheric-Pressure-Plasma-Jet Sintering of Nanoporous TiO₂-SnO₂Composites with Features Defined by Screen-Printing

Wang

Cheng

Chen

2015

ECS J. Solid State Sci. Technol.

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We investigated atmospheric-pressure-plasma-jet (APPJ)-sintered nanoporous TiO 2 and TiO 2 -SnO 2 composites with patterns defined by the screen-printing technique. The pastes used for screen-printing were made of oxide nanoparticles and organic binders. After using screen-printing to define the features, APPJ was then used to rapidly sinter the screen-printed pastes. APPJ sintering for 30 s can efficiently remove the organic compounds and sinter the nanoparticles, with transmittance haze values comparable to those of nanoporous oxides prepared by conventional furnace calcination. Screen-printing is a mature scalable low-cost deposition process that has been extensively used for the fabrication of various types of devices. [1][2][3][4][5][6][7][8] In industry, this technique is commonly used in roll-to-roll processes in which printing is performed when the web is stationary. Because alignment can be more easily achieved in this technique, it is customarily used in printing the second and follow-up layers. 9,10Recently, screen-printing has attracted renewed interest owing to the search for low-cost fabrication processes for flexible/stretchable supercapacitors, 3,4 We have applied the screen-printing technique to produce ceramictype metal oxides. Screen-printing administers the pastes containing the desired oxide nanoparticles with organic solvents or binders to maintain the required viscosity. The removal of these organic compounds usually requires calcination or annealing processes that are time-consuming and require a high thermal budget. In our previous study, we have developed a rapid atmospheric-pressure-plasma-jet (APPJ) sintering process for nanoporous TiO 2 with a sintering time as short as 1 min. The sintering time can be further reduced to 30 s by introducing air-quenching to increase the oxidization ability. [21][22][23] In contrast, furnace calcination would require ∼15 min excluding the temperature ramping and cooling times. This ultrafast sintering process was made possible by the synergistic effect of highly reactive/active N 2 plasmas and heat generated in APPJs. 21,22 Most recently, we further used this sequential screen-printing and APPJ-sintering process for the fabrication of reduced graphene oxide (rGO) counter electrodes of DSSCs. The processing time was only 11 s owing to the vigorous reaction between the N 2 APPJ and the carbon-based materials; in comparison, conventional furnace calcination would take 15 min at 400• C. The estimated energy consumption per unit processing area is less than one-third that of the conventional furnace calcination process. 19In this paper, we describe the sequential screen-printing and APPJsintering processes, as well as the preparation procedure of the oxide nanoparticle pastes in detail. Nanoporous TiO 2 and TiO 2 -SnO 2 composites are sintered by APPJs and characterized. The synthesized nanoporous oxides are implemented as the photoanodes of DSSCs for functionality testing.z E-mail: jchen@ntu.edu.tw; iccheng@ntu.edu.tw ExperimentalDetails of APPJ operatio...

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Plasmonic Nanocomposite as Photoanode

Lim

2019

Interfacial Engineering in Functional Materials for Dye‐Sensitized Solar Cells

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Plasma-etched nanoporous TiO₂using Ag nanoparticle masks: application for photoanodes of dye-sensitized solar cells

Cited by 5 publications

References 52 publications

Synthesis of uniformly ordered single-crystalline TiO₂ nanorods on flexible Ti substrate

Synthesis of uniformly ordered single-crystalline TiO₂ nanorods on flexible Ti substrate

Ultrafast Atmospheric-Pressure-Plasma-Jet Sintering of Nanoporous TiO₂-SnO₂Composites with Features Defined by Screen-Printing

Plasmonic Nanocomposite as Photoanode

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Plasma-etched nanoporous TiO2using Ag nanoparticle masks: application for photoanodes of dye-sensitized solar cells

Cited by 5 publications

References 52 publications

Synthesis of uniformly ordered single-crystalline TiO2 nanorods on flexible Ti substrate

Synthesis of uniformly ordered single-crystalline TiO2 nanorods on flexible Ti substrate

Ultrafast Atmospheric-Pressure-Plasma-Jet Sintering of Nanoporous TiO2-SnO2Composites with Features Defined by Screen-Printing

Plasmonic Nanocomposite as Photoanode

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Product

Resources

About

Plasma-etched nanoporous TiO₂using Ag nanoparticle masks: application for photoanodes of dye-sensitized solar cells

Synthesis of uniformly ordered single-crystalline TiO₂ nanorods on flexible Ti substrate

Synthesis of uniformly ordered single-crystalline TiO₂ nanorods on flexible Ti substrate

Ultrafast Atmospheric-Pressure-Plasma-Jet Sintering of Nanoporous TiO₂-SnO₂Composites with Features Defined by Screen-Printing