Infiltrated thin film structure with hydrogel-mediated precursor ink for durable SOFCs

AbstractThe hydrogel of biomolecule-assisted metal/organic complex has the superior ability to form a uniform, continuous, and densely integrated structure, which is necessary for fine thin film fabrication. As a representative of nature-originated polymers with abundant reactive side chains, we select the gelatin molecule as an element for weaving the metal cations. Here, we demonstrate the interaction between the metal cation and gelatin molecules, and associate it with coating quality. We investigate the rheological property of gelatin solutions interacting with metal cation from the view of cross-linking and denaturing of gelatin molecules. Also, we quantitatively compare the corresponding interactions by monitoring the absorbance spectrum of the cation. The coated porous structure is systematically investigated from the infiltration of gelatin-mediated Gd0.2Ce0.8O2−δ (GDC) precursor into Sm0.5Sr0.5CoO3−δ (SSC) porous scaffold. By applying the actively interacting gelatin–GDC system, we achieve a thin film of GDC on SSC with excellent uniformity. Compare to the discrete coating from the typical infiltration process, the optimized thin film coated structure shows enhanced performance and stability.

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A three-dimensional accordion-like metal–organic framework: synthesis and unconventional oriented growth on a surface

Chemical Communications ◽

10.1039/c6cc00056h ◽

2016 ◽

Vol 52 (35) ◽

pp. 6017-6020 ◽

Cited By ~ 13

Author(s):

Tomoyuki Haraguchi ◽

Kazuya Otsubo ◽

Osami Sakata ◽

Shogo Kawaguchi ◽

Akihiko Fujiwara ◽

...

Keyword(s):

Thin Film ◽

Metal Organic Framework ◽

Three Dimensional ◽

Oriented Growth ◽

Thin Film Fabrication ◽

Metal Organic ◽

Film Fabrication ◽

Organic Framework

We describe the synthesis and thin film fabrication of a new metal–organic framework (MOF), Fe(H2O)2(bpy)[Pt(CN)4]·H2O (bpy = 4,4′-bipyridine), with a three-dimensional accordion-like structure.

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Conductive MOFs with Photophysical Properties: Applications and Thin-Film Fabrication

Nano-Micro Letters ◽

10.1007/s40820-020-00470-w ◽

2020 ◽

Vol 12 (1) ◽

Author(s):

Zeyu Zhuang ◽

Dingxin Liu

Keyword(s):

Thin Film ◽

Photophysical Properties ◽

Metal Organic Frameworks ◽

High Quality ◽

Electrically Conductive ◽

Light Emitting ◽

Thin Film Fabrication ◽

Metal Organic ◽

Film Fabrication ◽

Luminescent Sensing

AbstractMetal–organic frameworks (MOFs) are a class of hybrid materials with many promising applications. In recent years, lots of investigations have been oriented toward applications of MOFs in electronic and photoelectronic devices. While many high-quality reviews have focused on synthesis and mechanisms of electrically conductive MOFs, few of them focus on their photophysical properties. Herein, we provide an in-depth review on photoconductive and photoluminescent properties of conductive MOFs together with their corresponding applications in solar cells, luminescent sensing, light emitting, and so forth. For integration of MOFs with practical devices, recent advances in fabrication of photoactive MOF thin films are also summarized.

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The effect of an aluminum heat-sink layer on the laser-induced amorphization of SiOx/TeGeSn/SiOx phase-change recording films

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100154846 ◽

1989 ◽

Vol 47 ◽

pp. 574-575

Author(s):

Matthew R. Libera ◽

Martin Chen

Keyword(s):

Thin Film ◽

Phase Change ◽

Heat Sink ◽

Multilayer Film ◽

Glassy Phase ◽

Film Structure ◽

Glass Forming ◽

Active Storage ◽

Dielectric Layers ◽

Amorphous States

Phase-change erasable optical storage is based on the ability to switch a micron-sized region of a thin film between the crystalline and amorphous states using a diffraction-limited laser as a heat source. A bit of information can be represented as an amorphous spot on a crystalline background, and the two states can be optically identified by their different reflectivities. In a typical multilayer thin-film structure the active (storage) layer is sandwiched between one or more dielectric layers. The dielectric layers provide physical containment and act as a heat sink. A viable phase-change medium must be able to quench to the glassy phase after melting, and this requires proper tailoring of the thermal properties of the multilayer film. The present research studies one particular multilayer structure and shows the effect of an additional aluminum layer on the glass-forming ability.

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