HARD TEMPLATES FOR FABRICATION OF NANOSTRUCTURED FILMS

NANO ◽  
2010 ◽  
Vol 05 (02) ◽  
pp. 75-87 ◽  
Author(s):  
KI-RIM LEE ◽  
YOUNG-UK KWON
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Block Copolymer ◽  
Self Assembly ◽  
The Other ◽  
Anodized Aluminum ◽  
Anodized Aluminum Oxide ◽  
Nanostructured Films ◽  
Nanostructured Thin Film ◽  
Mesoporous Thin Films

In this paper, we review on classes of materials that can be used as hard templates to fabricate nanostructured thin film materials. The hard templates discussed are anodized aluminum oxide (AAO), block copolymer (BC) self-assembly films, and mesoporous thin films (MTFs), with emphasis on MTFs since it has not been reviewed for the application as templates while the first two materials have been reviewed previously by others. Each one of the three classes of templates has advantages and drawbacks. Considering the pore dimensions available by each one of them, the three templates are complementary to one another. Some of the features of MTFs appear to be advantageous over the other types of templates. All and all, these three appear to have complementing features to cover the various aspects required for templates to synthesize nanostructured thin films.

Nanostructured organic radical cathodes from self-assembled nitroxide-containing block copolymer thin films

2015 ◽  
Vol 3 (38) ◽  
pp. 19575-19581 ◽  
Author(s):  
G. Hauffman ◽  
A. Vlad ◽  
T. Janoschka ◽  
U. S. Schubert ◽  
J.-F. Gohy
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Block Copolymer ◽  
Diblock Copolymers ◽  
Organic Radical ◽  
Nanostructured Thin Film ◽  
Self Assembled

Nanostructured thin film organic radical cathodes have been prepared from poly(styrene)-block-poly(2,2,6,6-tetramethylpiperidinyloxy-4-yl methacrylate) diblock copolymers.

scholarly journals Preparation of Janus nanoparticles from block copolymer thin films using triazolinedione chemistry

RSC Advances ◽  
2017 ◽  
Vol 7 (59) ◽  
pp. 37048-37054 ◽  
Author(s):  
Elio Poggi ◽  
Wolfgang Ouvry ◽  
Bruno Ernould ◽  
Jean-Pierre Bourgeois ◽  
Subrata Chattopadhyay ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Block Copolymer ◽  
Click Chemistry ◽  
Diblock Copolymer ◽  
Nanostructured Thin Film ◽  
Janus Nanoparticles

A nanostructured thin film obtained from a polystyrene-block-poly(4-vinylpyridine) diblock copolymer was used as a template to produce Janus-type nanoparticles via triazolinedione-ene click chemistry.

The Morphology in Film of Polystyrene-b-Polylactide after Temperature Annealing Process

2015 ◽  
Vol 1095 ◽  
pp. 647-650
Author(s):  
Ting Chen ◽  
Jia Nan Zhang
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Phase Separation ◽  
Block Copolymer ◽  
Annealing Time ◽  
Self Assembly ◽  
Annealing Temperature ◽  
Annealing Process ◽  
Temperature Gradients ◽  
Si Substrates

Polystyrene-b-Polylactide (PS-b-PLA) was dissolved in chlorobenzene, and the development of the micro-phase separation morphology in asymmetric PS-b-PLA thin films was investigated by AFM. The thin films were prepared by spinning casting at the speed of 6000 r/min for 60s on Si substrates. We get different morphologies of PS-b-PLA thin film by changing the annealing temperature from 150 °C to 170 °C. In addition, the annealing time influences the morphology of the film. When the annealing time increased from 2 hours to 15 hours and 30 hours, the morphology transformed from parallel to perpendicular to the substrate. By applying temperature gradients, we can control the morphology and orientation of the Block copolymer film self-assembly.

Nanoscratch-Directed Self-Assembly of Block Copolymer Thin Films

2021 ◽  
Vol 13 (4) ◽  
pp. 5772-5781
Author(s):  
Dong Hyup Kim ◽  
Ahram Suh ◽  
Geonhyeong Park ◽  
Dong Ki Yoon ◽  
So Youn Kim
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Self Assembly

Study on preparing PLT(28) thin film and its electro-optic effect

1998 ◽  
Vol 13 (5) ◽  
pp. 1266-1270 ◽  
Author(s):  
Ai-Li Ding ◽  
Wei-Gen Luo ◽  
P. S. Qiu ◽  
J. W. Feng ◽  
R. T. Zhang
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Magnetron Sputtering ◽  
Faraday Effect ◽  
The Other ◽  
Ceramic Powders ◽  
Glass Substrates ◽  
Annealing Conditions ◽  
Electro Optic

PLT(28) thin films deposited on glass substrates were studied by two sputtering processes. One is an in situ magnetron sputtering and the other is a low-temperature magnetron sputtering. The sintered PLT ceramic powders are used as a sputtering target for both processes. The influences of sputtering and annealing conditions on structure and crystallinity of the films were investigated. The electro-optic (E-O) properties of PLT(28) thin films prepared by the two processes were determined by a technique according to Faraday effect. The researches showed the E-O properties were strongly affected by the sputtering process. The film with larger grains exhibits stronger E-O effect. The quadratic E-O coefficient of PLT(28) thin film varies in the range of 0.1 × 10−16 to 1.0 × 10−16 (m/v)2.

Study of the Kinetics and Mechanism of Rapid Self-Assembly in Block Copolymer Thin Films during Solvo-Microwave Annealing

Langmuir ◽  
2014 ◽  
Vol 30 (35) ◽  
pp. 10728-10739 ◽  
Author(s):  
Parvaneh Mokarian-Tabari ◽  
Cian Cummins ◽  
Sozaraj Rasappa ◽  
Claudia Simao ◽  
Clivia M. Sotomayor Torres ◽  
...  
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Self Assembly ◽  
Kinetics And Mechanism ◽  
Microwave Annealing

Micro-capacitor with vertically grown silver nanowires and bismuth ferric oxide composite structures on silicon substrates

2016 ◽  
Vol 51 (7) ◽  
pp. 965-969 ◽  
Author(s):  
Daniel Choi ◽  
Boo Hyun An ◽  
Mariam Mansouri ◽  
Dima Ali ◽  
Malathe Khalil ◽  
...  
Keyword(s):  
Thin Film ◽  
Oxide Film ◽  
Aluminum Oxide ◽  
Ferric Oxide ◽  
Silver Nanowires ◽  
Silicon Substrates ◽  
Anodized Aluminum ◽  
Anodized Aluminum Oxide ◽  
Oxide Composite ◽  
Aluminum Oxide Film

We have designed and demonstrated a complementary metal-oxide-semiconductor compatible process for fabricating high capacitance micro-capacitors based on vertically grown silver nanowires on silicon substrates. Array of silver nanowires with high-aspect ratio were electrochemically grown in the pores of anodized aluminum oxide film, which was pre-formed through anodization of aluminum thin film deposited on titanium/silicon oxide/silicon substrates. High dielectric bismuth ferric oxide layer was electrodeposited to fill the gap between silver nanowires after anodized aluminum oxide film was removed. It was found that the micro-capacitor based on the silver nanowires/bismuth ferric oxide composite film possessed higher capacitance by approximately one order of magnitude from the COMSOL simulation results from the flat Ag thin-film capacitor and the silver nanowire capacitor.

scholarly journals Carbon Nano-Onions Reinforced Multilayered Thin Film System for Stimuli-Responsive Drug Release

Pharmaceutics ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 1208
Author(s):  
Narsimha Mamidi ◽  
Ramiro Velasco Delgadillo ◽  
Aldo Gonzáles Ortiz ◽  
Enrique Barrera
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Drug Release ◽  
Self Assembly ◽  
Critical Role ◽  
Layer By Layer ◽  
Film System ◽  
Stimuli Responsive ◽  
Ph Responsive ◽  
Thin Film System

Herein, poly (N-(4-aminophenyl) methacrylamide))-carbon nano-onions (PAPMA-CNOs = f-CNOs) and anilinated-poly (ether ether ketone) (AN-PEEK) have synthesized, and AN-PEEK/f-CNOs composite thin films were primed via layer-by-layer (LbL) self-assembly for stimuli-responsive drug release. The obtained thin films exhibited pH-responsive drug release in a controlled manner; pH 4.5 = 99.2% and pH 6.5 = 59.3% of doxorubicin (DOX) release was observed over 15 days. Supramolecular π-π stacking interactions between f-CNOs and DOX played a critical role in controlling drug release from thin films. Cell viability was studied with human osteoblast cells and augmented viability was perceived. Moreover, the thin films presented 891.4 ± 8.2 MPa of the tensile strength (σult), 43.2 ± 1.1 GPa of Young’s modulus (E), and 164.5 ± 1.7 Jg−1 of toughness (K). Quantitative scrutiny revealed that the well-ordered aligned nanofibers provide critical interphase, and this could be responsible for augmented tensile properties. Nonetheless, a pH-responsive and mechanically robust biocompatible thin-film system may show potential applications in the biomedical field.

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