Ferroelectric
and antiferroelectric materials are promising options
for energy-related (such as energy harvesting, energy storage, IR
detection, and refrigeration) and memory applications (such as ferroelectric
random-access memory (FeRAM) and ferroelectric field-effect transistor
(FeFET)). In the past, several classes of materials (such as polymers,
ceramics, single crystals, and glasses) have been studied for these
properties. However, because of a large deposition thickness (in micrometers
or larger), these materials are inappropriate for future nanoscale
devices. Recently, the ferroelectric and antiferroelectric HfO2-based thin films have also been studied for the energy-related
and memory applications. HfO2-based materials have many
advantages over the conventional materials, such as compatibility
with Si-based semiconductor technology, ultrasmall thicknesses (nm),
and simple compositions, and they are appropriate for integration
within 3-D nanostructures. HfO2-based materials can be
promising for energy-related applications, such as energy storage,
pyroelectric energy harvesting, IR sensors, and solid-state cooling.
This article provides some basic knowledge of these energy-related
properties. Moreover, this article reviews the energy-related properties
of HfO2-based thin films, their origins, and the prospects
of this research field.
Lubricant‐infused surfaces (LISs) inspired by Nepenthes pitcher plants due to its continuous and homogeneous slippery surface have garnered great attention, which results in high durability, anti‐corrosion performance, self‐healing property, and anti‐fouling properties. Herein, a cooperative‐responsive slippery surface based on chemically patterned myristic acid (MA)‐modified NiTiO2 superhydrophobic surface (SHPBS) is fabricated by an electrodeposition method. LIS exhibits long‐term durability with lowest corrosion rate (0.10153 mpy) than MA‐modified NiTiO2 (0.12922 mpy) and NiTiO2 (0.226135 mpy). Furthermore, theoretical investigations of phase‐field simulation with a droplet impact on artificially patterned surfaces with rebound dynamics of liquid droplet to its equilibrium state correspond with SHPBSs and LIS, having contact angle (161° and 116°) and hydrophobicity index α
s (−0.8822 and −0.4329), respectively. Herein, multifunctional applications are incorporated on surface without compromising its corrosion performance, and a computational model is involved to understand the mechanisms of two differing applications. Experimental results also quantitatively agree with the calculated wettability parameters. The work not only unveils the close attention for lubricant selection to create long‐lasting LIS but also provides new insights into designing next‐generation multifunctional surfaces, which could be developed for various applications.
In this paper, in order to explore the effect of the preferential orientation of Cu on the preparation of robust anodized Cu2O films, three types of Cu substrates with three different preferential crystal plane orientation [(111), (200), (220)] are employed. First‐Principles calculation is employed to calculate the surface energy of different Cu crystalline planes by the software of DACAPO, which is conducted by the plane‐wave pseudo‐potential method. The influence of the preferential plane orientation of Cu on the anodized oxidation reaction process and the morphology of anodized CuxO films has been discussed in detail. The results indicate that the morphology of anodized CuxO films depends on the preferential exposing plane orientation of Cu substrates under the same anodized oxidation condition. The high surface energy of Cu makes Cu atoms release more easily from lattices, leading to more different active‐reaction sites.
The increasing demand for innovative lithium-ion batteries (LIBs) has significantly inspired the search for vigorous electrodes with higher specific capacity. Herein, a metal-organic frameworks (MOFs) mediated approach was applied to...
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