scholarly journals Hybrid fluorescent liquid crystalline composites: directed assembly of quantum dots in liquid crystalline block copolymer matrices

RSC Advances ◽  
2020 ◽  
Vol 10 (26) ◽  
pp. 15264-15273
Author(s):  
Miron Bugakov ◽  
Sharifa Abdullaeva ◽  
Pavel Samokhvalov ◽  
Sergey Abramchuk ◽  
Valery Shibaev ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Spatial Distribution ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Hybrid Composite ◽  
Liquid Crystalline ◽  
Composite Films ◽  
Directed Assembly ◽  
Molecular Architecture ◽  
Copolymer Matrices

Spatial distribution of QDs within hybrid composite films was programed by varying the molecular architecture of the host LC block copolymers.

Rapid-flux-solvent-atmosphere method for tailoring the morphology of titania substrates over a large area via direct self-assembly of block copolymers

RSC Advances ◽  
2014 ◽  
Vol 4 (32) ◽  
pp. 16721-16725 ◽  
Author(s):  
Gianpaolo Chieffi ◽  
Rocco Di Girolamo ◽  
Antonio Aronne ◽  
Pasquale Pernice ◽  
Esther Fanelli ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Self Assembly ◽  
Hybrid Composite ◽  
Fast Method ◽  
Large Area ◽  
Composite Nanostructures

A fast method for the preparation of block-copolymer-based hybrid composite nanostructures and titania substrates well oriented over a large area, is illustrated.

scholarly journals Beyond native block copolymer morphologies

2017 ◽  
Vol 2 (5) ◽  
pp. 518-538 ◽  
Author(s):  
Gregory S. Doerk ◽  
Kevin G. Yager
Keyword(s):  
Phase Diagram ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Molecular Design ◽  
Equilibrium Phase ◽  
Directed Assembly ◽  
Equilibrium Phase Diagram

Block copolymers self-assemble into a range of canonical morphologies. Here, we review a broad range of techniques for inducing these materials to form structures beyond the ‘native’ morphologies seen in the bulk equilibrium phase diagram. Methods that exploit intrinsic encoding (molecular design) and external enforcement (directed assembly) are compared.

scholarly journals Light Down-Converter Based on Luminescent Nanofibers from the Blending of Conjugated Rod-Coil Block Copolymers and Perovskite through Electrospinning

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 84 ◽  
Author(s):  
Dai-Hua Jiang ◽  
Saburo Kobayashi ◽  
Chih-Chun Jao ◽  
Yoshinobu Mato ◽  
Takuya Isono ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Butyl Acrylate ◽  
Click Reaction ◽  
Soft Segment ◽  
Composite Fibers ◽  
Color Tunable ◽  
Perovskite Quantum Dots ◽  
Novel Strategy

We demonstrated a novel strategy for the preparation of light down-converter by combining rod-coil block copolymers with perovskite quantum dots (QDs) through electrospinning. Reports have shown that polymer deformability can be enhanced by incorporating a soft segment and controlled by varying the rod/coil ratio. Therefore, we first synthesized the rod-coil block copolymer through the click reaction of polyfluorene (PF) and poly(n-butyl acrylate) (PBA). Next, the CsPbBr3@PF8k-b-PBA12k composite fibers were fabricated by blending perovskite through electrospinning. Optical spectral evidence demonstrated the success of the strategy, as light down-converters were prepared through the controlled variance of QD/polymer ratios to achieve tunable color and stretchability. This result reveals the potential of using rod-coil block copolymers to fabricate color-tunable perovskite light down-converters.

Self-Assembly of Block Copolymers for Photonic-Bandgap Materials

MRS Bulletin ◽  
2005 ◽  
Vol 30 (10) ◽  
pp. 721-726 ◽  
Author(s):  
Jongseung Yoon ◽  
Wonmok Lee ◽  
Edwin L. Thomas
Keyword(s):  
Molecular Weight ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Photonic Crystals ◽  
Liquid Crystalline ◽  
Photonic Bandgap ◽  
Photonic Bandgap Materials ◽  
Periodic Microstructures ◽  
Self Assembled ◽  
Bandgap Materials

AbstractSelf-assembled block copolymer systems with an appropriate molecular weight to produce a length scale that will interact with visible light are an alternative platform material for the fabrication of large-area, well-ordered photonic-bandgap structures at visible and near-IR frequencies.Over the past years, one-, two-, and three-dimensional photonic crystals have been demonstrated with various microdomain structures created through microphase separation of block copolymers. The size and shape of periodic microstructures of block copolymers can be readily tuned by molecular weight, relative composition of the copolymer, and blending with homopolymers or plasticizers.The versatility of photonic crystals based on block copolymers is further increased by incorporating inorganic nanoparticles or liquid-crystalline guest molecules (or using a liquid-crystalline block), or by selective etching of one of the microdomains and backfilling with high-refractive-index materials. This article presents an overview of photonic-bandgap materials enabled by self-assembled block copolymers and discusses the morphology and photonic properties of block-copolymer-based photonic crystals containing nanocomposite additives.We also provide a view of the direction of future research, especially toward novel photonic devices.

62‐9: Invited Paper: Hybrid Composite Films with Perovskite Quantum Dots and Red Phosphors for LCD Display Backlights

2021 ◽  
Vol 52 (1) ◽  
pp. 912-913
Author(s):  
Tao Zhang ◽  
Zelong Bai ◽  
Jing Li ◽  
Haizheng Zhong
Keyword(s):  
Quantum Dots ◽  
Hybrid Composite ◽  
Composite Films ◽  
Red Phosphors ◽  
Lcd Display ◽  
Perovskite Quantum Dots

Liquid crystalline block copolymers as adaptive agents for compatibility between CdSe/ZnS quantum dots and low-molecular-weight liquid crystals

2019 ◽  
Vol 7 (15) ◽  
pp. 4326-4331 ◽  
Author(s):  
Miron Bugakov ◽  
Natalia Boiko ◽  
Pavel Samokhvalov ◽  
Xiaomin Zhu ◽  
Martin Möller ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Quantum Dots ◽  
Liquid Crystals ◽  
Block Copolymers ◽  
Liquid Crystalline ◽  
Triblock Copolymers ◽  
Low Molecular Weight ◽  
Adaptive Agents

Liquid crystalline (LC) triblock copolymers were used either as (i) a nematic matrix, which can be loaded with 10 wt% of CdSe/ZnS QDs, or (ii) a compatibilizer, which allows more than 1 wt% of QDs to be introduced in low-molecular-weight cholesteric LCs.

Nanocomposite hydrogels based on liquid crystalline brush-like block copolymer–Au nanorods and their application in H2O2 detection

2015 ◽  
Vol 51 (61) ◽  
pp. 12174-12177 ◽  
Author(s):  
Chi Thanh Nguyen ◽  
Rajeswari M. Kasi
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Gold Nanorods ◽  
Liquid Crystalline ◽  
Nanocomposite Hydrogel ◽  
Au Nanorods ◽  
Nanocomposite Hydrogels ◽  
H2o2 Detection ◽  
Reproducible Method

The nanocomposite hydrogel from liquid crystalline brush-like block copolymers and gold nanorods is developed, which is used to develop a simple and reproducible method to detect H2O2.

scholarly journals Hybrid Fluorescent Cholesteric Materials with Controllable Light Emission Containing CdSe/ZnS Quantum Dots Stabilized by Liquid Crystalline Block Copolymer

2021 ◽  
Author(s):  
Miron Bugakov ◽  
Pavel Samokhvalov ◽  
Valery Shibaev ◽  
Natalia Boiko
Keyword(s):  
Quantum Dots ◽  
Block Copolymer ◽  
Liquid Crystalline ◽  
Light Emission

Directed Assembly of Quantum Dots Using Brush Block Copolymers for Well-Ordered Nonlinear Optical Nanocomposites

2016 ◽  
Vol 49 (14) ◽  
pp. 5068-5075 ◽  
Author(s):  
Dong-Po Song ◽  
Shiva Shahin ◽  
Wanting Xie ◽  
Soroush Mehravar ◽  
Xiaohui Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Block Copolymers ◽  
Nonlinear Optical ◽  
Directed Assembly

Hierarchically ordered nanostructures of a supramolecular rod-coil block copolymer with a hydrogen-bonded discotic mesogen

2019 ◽  
Vol 10 (8) ◽  
pp. 991-999 ◽  
Author(s):  
Hongbing Pan ◽  
Wei Zhang ◽  
Anqi Xiao ◽  
Xiaolin Lyu ◽  
Pingping Hou ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Liquid Crystalline ◽  
Hierarchical Structures ◽  
Molar Ratio ◽  
Ordered Nanostructures ◽  
Hydrogen Bonded

Supramolecular liquid crystalline block copolymers prepared via hydrogen bonding exhibit hierarchical structures that can be tuned by varying the molar ratio of the discotic hydrogen-bonding acceptor to the block copolymer donor.

Sign in / Sign up

Export Citation Format

Share Document