scholarly journals Science and applications of wafer-scale crystalline carbon nanotube films prepared through controlled vacuum filtration

2019 ◽  
Vol 6 (3) ◽  
pp. 181605 ◽  
Author(s):  
Weilu Gao ◽  
Junichiro Kono
Keyword(s):  
Materials Science ◽  
Optoelectronic Device ◽  
Filtration Method ◽  
Vacuum Filtration ◽  
One Dimensional ◽  
Wafer Scale ◽  
Device Applications ◽  
Spectroscopy Studies ◽  
Physical Phenomena ◽  
Filtration Technique

Carbon nanotubes (CNTs) make an ideal one-dimensional (1D) material platform for the exploration of novel physical phenomena under extremely strong quantum confinement. The 1D character of electrons, phonons and excitons in individual CNTs features extraordinary electronic, thermal and optical properties. Since their discovery in 1991, they have been continuing to attract interest in various disciplines, including chemistry, materials science, physics and engineering. However, the macroscopic manifestation of 1D properties is still limited, despite significant efforts for decades. Recently, a controlled vacuum filtration method has been developed for the preparation of wafer-scale films of crystalline chirality-enriched CNTs, and such films have enabled exciting new fundamental studies and applications. In this review, we will first discuss the controlled vacuum filtration technique, and then summarize recent discoveries in optical spectroscopy studies and optoelectronic device applications using films prepared by this technique.

Recent advances in one-dimensional organic p–n heterojunctions for optoelectronic device applications

2016 ◽  
Vol 4 (40) ◽  
pp. 9388-9398 ◽  
Author(s):  
Qingyuan Li ◽  
Shang Ding ◽  
Weigang Zhu ◽  
Linlin Feng ◽  
Huanli Dong ◽  
...  
Keyword(s):  
Optoelectronic Device ◽  
Organic P ◽  
One Dimensional ◽  
Recent Advances ◽  
Device Applications ◽  
Optoelectronic Applications ◽  
Organic Heterojunctions

Recent advances in various one-dimensional organic heterojunctions including their synthesis and optoelectronic applications are summarized in this MiniRev article.

Electrically driven assembly of CdTe quantum dots into photoconductive microwires

2015 ◽  
Vol 3 (8) ◽  
pp. 1645-1648 ◽  
Author(s):  
Gaurav Maheshwari ◽  
Mona Mittal ◽  
Sameer Sapra ◽  
Shalini Gupta
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Low Cost ◽  
Optoelectronic Device ◽  
Low Energy ◽  
Cdte Quantum Dots ◽  
One Dimensional ◽  
Device Applications ◽  
Nanocrystal Assembly

Low energy, low cost quantum dot nanocrystal assembly into one-dimensional microwires for optoelectronic device applications.

TEM and cathodoluminescence of precipitates in II-VI semiconductors

1988 ◽  
Vol 46 ◽  
pp. 488-489
Author(s):  
Joanna L. Batstone
Keyword(s):  
Crystal Growth ◽  
Band Gap ◽  
Local Strain ◽  
Wide Band ◽  
Optoelectronic Device ◽  
Wide Band Gap ◽  
Bulk Crystal Growth ◽  
Transmission Electron ◽  
Device Applications ◽  
Stoichiometry Control

Interest in II-VI semiconductors centres around optoelectronic device applications. The wide band gap II-VI semiconductors such as ZnS, ZnSe and ZnTe have been used in lasers and electroluminescent displays yielding room temperature blue luminescence. The narrow gap II-VI semiconductors such as CdTe and HgxCd1-x Te are currently used for infrared detectors, where the band gap can be varied continuously by changing the alloy composition x.Two major sources of precipitation can be identified in II-VI materials; (i) dopant introduction leading to local variations in concentration and subsequent precipitation and (ii) Te precipitation in ZnTe, CdTe and HgCdTe due to native point defects which arise from problems associated with stoichiometry control during crystal growth. Precipitation is observed in both bulk crystal growth and epitaxial growth and is frequently associated with segregation and precipitation at dislocations and grain boundaries. Precipitation has been observed using transmission electron microscopy (TEM) which is sensitive to local strain fields around inclusions.

In(Ga)N Nanowire Heterostructures and Optoelectronic Device Applications

2011 ◽  
Vol 1 (2) ◽  
pp. 123-139
Author(s):  
Saeed Fathololoumi ◽  
Hieu P. T. Nguyen ◽  
Zetian Mi
Keyword(s):  
Optoelectronic Device ◽  
Nanowire Heterostructures ◽  
Device Applications

In(Ga)N Nanowire Heterostructures and Optoelectronic Device Applications

2011 ◽  
Vol 1 (2) ◽  
pp. 123-139 ◽  
Author(s):  
Saeed Fathololoumi ◽  
Hieu P. T. Nguyen ◽  
Zetian Mi
Keyword(s):  
Optoelectronic Device ◽  
Nanowire Heterostructures ◽  
Device Applications

ε-InSe single crystals grown by a horizontal gradient freeze method

CrystEngComm ◽  
2020 ◽  
Vol 22 (45) ◽  
pp. 7864-7869
Author(s):  
Maojun Sun ◽  
Wei Wang ◽  
Qinghua Zhao ◽  
Xuetao Gan ◽  
Yuanhui Sun ◽  
...  
Keyword(s):  
Single Crystals ◽  
Optoelectronic Device ◽  
Indium Selenide ◽  
Horizontal Gradient ◽  
Device Applications

Indium selenide (InSe) single crystals have been considered as promising candidates for future optical, electrical, and optoelectronic device applications.

Discotic columnar liquid-crystalline polymer semiconducting materials with high charge-carrier mobility via rational macromolecular engineering

2017 ◽  
Vol 8 (21) ◽  
pp. 3286-3293 ◽  
Author(s):  
Bin Mu ◽  
Xingtian Hao ◽  
Jian Chen ◽  
Qian Li ◽  
Chunxiu Zhang ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Cost Effective ◽  
Crystalline Polymer ◽  
Charge Carrier Mobility ◽  
Optoelectronic Device ◽  
Side Chain ◽  
Liquid Crystal Polymers ◽  
Semiconducting Materials ◽  
Organic Semiconducting Materials ◽  
Device Applications

Well-prepared side-chain discotic liquid crystal polymers with shorter spacers in ordered columnar phases are fascinating and promising cost-effective, solution-processable organic semiconducting materials for various potential optoelectronic device applications.

scholarly journals Solvent-Controlled Self-Assembled Oligopyrrolic Receptor

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1771
Author(s):  
Fei Wang ◽  
Kejiang Liang ◽  
Mads Christian Larsen ◽  
Steffen Bähring ◽  
Masatoshi Ishida ◽  
...  
Keyword(s):  
Materials Science ◽  
Science Research ◽  
Polymeric Chain ◽  
Supramolecular System ◽  
Receptor System ◽  
One Dimensional ◽  
X Ray ◽  
Host Guest Complex ◽  
Colorimetric Response ◽  
Strong Acids

We report a fully organic pyridine-tetrapyrrolic U-shaped acyclic receptor 10, which prefers a supramolecular pseudo-macrocyclic dimeric structure (10)2 in a less polar, non-coordinating solvent (e.g., CHCl3). Conversely, when it is crystalized from a polar, coordinating solvent (e.g., N,N-dimethylformamide, DMF), it exhibited an infinite supramolecular one-dimensional (1D) “zig-zag” polymeric chain, as inferred from the single-crystal X-ray structures. This supramolecular system acts as a potential receptor for strong acids, e.g., p-toluenesulfonic acid (PTSA), methane sulfonic acid (MSA), H2SO4, HNO3, and HCl, with a prominent colorimetric response from pale yellow to deep red. The receptor can easily be recovered from the organic solution of the host–guest complex by simple aqueous washing. It was observed that relatively stronger acids with pKa < −1.92 in water were able to interact with the receptor, as inferred from 1H NMR titration in tetrahydrofuran-d8 (THF-d8) and ultraviolet–visible (UV–vis) spectroscopic titrations in anhydrous THF at 298 K. Therefore, this new dynamic supramolecular receptor system may have potentiality in materials science research.

Optical Properties of Zinc Sulphide Thin Films Coated with Aqueous Organic Dye Extract for Solar and Optoelectronic Device Applications

2021 ◽  
Vol 50 (5) ◽  
pp. 2576-2583
Author(s):  
Uche Paul Onochie ◽  
Sunday Chukwuyem Ikpeseni ◽  
Anthony Egwu Igweoko ◽  
Hilary Ijeoma Owamah ◽  
Chinecherem Collins Aluma ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Optoelectronic Device ◽  
Zinc Sulphide ◽  
Organic Dye ◽  
Device Applications
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