scholarly journals Photoswitches: High Performance Photoswitches Based on Flexible and Amorphous D-A Polymer Nanowires (Small 2/2013)

Small ◽  
2013 ◽  
Vol 9 (2) ◽  
pp. 166-166 ◽  
Author(s):  
Yao Liu ◽  
Haifeng Wang ◽  
Huanli Dong ◽  
Lang Jiang ◽  
Wenping Hu ◽  
...  
Keyword(s):  
High Performance ◽  
Polymer Nanowires

High Aspect Ratio Conjugated Polymer Nanowires for High Performance Field-Effect Transistors and Phototransistors

ACS Nano ◽  
2015 ◽  
Vol 9 (5) ◽  
pp. 5264-5274 ◽  
Author(s):  
Hyun Ah Um ◽  
Dae Hee Lee ◽  
Dong Uk Heo ◽  
Da Seul Yang ◽  
Jicheol Shin ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Conjugated Polymer ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Polymer Nanowires

High-performance supercapacitors of Cu-based porous coordination polymer nanowires and the derived porous CuO nanotubes

2017 ◽  
Vol 46 (48) ◽  
pp. 16821-16827 ◽  
Author(s):  
Meng-Ke Wu ◽  
Jiao-Jiao Zhou ◽  
Fei-Yan Yi ◽  
Chen Chen ◽  
Yan-Li Li ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
High Performance ◽  
Electrode Materials ◽  
Porous Coordination Polymer ◽  
Polymer Nanowires

The ultralong porous coordination polymer nanowire (Cu-asp) and its devised porous CuO nanotube were synthesized and used as the electrode materials for supercapacitors.

High Performance Photoswitches Based on Flexible and Amorphous D-A Polymer Nanowires

Small ◽  
2012 ◽  
Vol 9 (2) ◽  
pp. 294-299 ◽  
Author(s):  
Yao Liu ◽  
Haifeng Wang ◽  
Huanli Dong ◽  
Lang Jiang ◽  
Wenping Hu ◽  
...  
Keyword(s):  
High Performance ◽  
Polymer Nanowires

scholarly journals Highly Aligned Polymeric Nanowire Etch-Mask Lithography Enabling the Integration of Graphene Nanoribbon Transistors

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 33
Author(s):  
Sangheon Jeon ◽  
Pyunghwa Han ◽  
Jeonghwa Jeong ◽  
Wan Sik Hwang ◽  
Suck Won Hong
Keyword(s):  
Field Effect ◽  
High Performance ◽  
Large Scale ◽  
Field Effect Transistors ◽  
Graphene Nanoribbons ◽  
Chemical Vapor ◽  
Spatial Arrangement ◽  
Deposition Process ◽  
Graphene Monolayer ◽  
Polymer Nanowires

Graphene nanoribbons are a greatly intriguing form of nanomaterials owing to their unique properties that overcome the limitations associated with a zero bandgap of two-dimensional graphene at room temperature. Thus, the fabrication of graphene nanoribbons has garnered much attention for building high-performance field-effect transistors. Consequently, various methodologies reported previously have brought significant progress in the development of highly ordered graphene nanoribbons. Nonetheless, easy control in spatial arrangement and alignment of graphene nanoribbons on a large scale is still limited. In this study, we explored a facile, yet effective method for the fabrication of graphene nanoribbons by employing orientationally controlled electrospun polymeric nanowire etch-mask. We started with a thermal chemical vapor deposition process to prepare graphene monolayer, which was conveniently transferred onto a receiving substrate for electrospun polymer nanowires. The polymeric nanowires act as a robust etching barrier underlying graphene sheets to harvest arrays of the graphene nanoribbons. On varying the parametric control in the process, the size, morphology, and width of electrospun polymer nanowires were easily manipulated. Upon O2 plasma etching, highly aligned arrays of graphene nanoribbons were produced, and the sacrificial polymeric nanowires were completely removed. The graphene nanoribbons were used to implement field-effect transistors in a bottom-gated configuration. Such approaches could realistically yield a relatively improved current on–off ratio of ~30 higher than those associated with the usual micro-ribbon strategy, with the clear potential to realize reproducible high-performance devices.

Highly crystalline low-bandgap polymer nanowires towards high-performance thick-film organic solar cells exceeding 10% power conversion efficiency

2017 ◽  
Vol 10 (1) ◽  
pp. 247-257 ◽  
Author(s):  
Jaewon Lee ◽  
Dong Hun Sin ◽  
Byungho Moon ◽  
Jisoo Shin ◽  
Heung Gyu Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Thick Film ◽  
Organic Solar Cells ◽  
High Performance ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
One Dimensional ◽  
Low Bandgap ◽  
Polymer Nanowires

One-dimensional low bandgap polymer nanowires successfully incorporated into bulk-heterojunction organic solar cells, yielding a high PCE exceeding 10% with thick films.

Ultrasonic-assisted ultrafast fabrication of polymer nanowires for high performance triboelectric nanogenerators

Nano Energy ◽  
2020 ◽  
Vol 71 ◽  
pp. 104593 ◽  
Author(s):  
Long-Biao Huang ◽  
Wei Xu ◽  
Wei Tian ◽  
Jian-Chen Han ◽  
Chen-Han Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Ultrasonic Assisted ◽  
Triboelectric Nanogenerators ◽  
Polymer Nanowires

scholarly journals Luminescent Organic Barcode Nanowires for Effective Chemical Sensors

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 662
Author(s):  
Jinho Choi ◽  
Seokho Kim ◽  
Jung Park ◽  
Seung Lee ◽  
Young Seo ◽  
...  
Keyword(s):  
Chemical Sensors ◽  
High Performance ◽  
Electrochemical Polymerization ◽  
Alkali Treatment ◽  
The Past ◽  
Nanoporous Template ◽  
Alumina Oxide ◽  
Ph Scale ◽  
Polymer Nanowires ◽  
Chemical Materials

Chemical materials are sometimes harmful to the environment as well as humans, plants, and animals. Thus, high-performance sensor systems have become more important in the past few decades. To achieve pH scale sensing in nanosystems, we applied luminescence polymer nanowires with alumina oxide template method with electrochemical polymerization. We made polymer nanowire barcode by alternately stacking poly(3-methylthiophene) (P3MT) and poly(3,4-ethylenedioxythiophene) (PEDOT) in a nanoporous template. After polymerization, a hydrofluoric acid solvent was used to remove the template, and, for changing the pH scale, we used sodium hydroxide. We measured optical properties of each part of barcode using Raman scattering and photoluminescence and confirmed that only P3MT was changed by alkali treatment.

A High Performance Energy Analyzer for Use in Electron Scanning Microscopy

1969 ◽  
Vol 27 ◽  
pp. 14-15
Author(s):  
A. V. Crewe ◽  
M. Isaacson ◽  
D. Johnson
Keyword(s):  
High Performance ◽  
Vertical Plane ◽  
Median Plane ◽  
Electron Gun ◽  
Uniform Field ◽  
Loss Mechanism ◽  
Electron Scanning Microscopy ◽  
Sector Type ◽  
Double Focusing ◽  
Electron Energy Loss

A double focusing magnetic spectrometer has been constructed for use with a field emission electron gun scanning microscope in order to study the electron energy loss mechanism in thin specimens. It is of the uniform field sector type with curved pole pieces. The shape of the pole pieces is determined by requiring that all particles be focused to a point at the image slit (point 1). The resultant shape gives perfect focusing in the median plane (Fig. 1) and first order focusing in the vertical plane (Fig. 2).

Vacuum System to Minimize the Specimen Contamination of High-Performance EM

1977 ◽  
Vol 35 ◽  
pp. 68-69
Author(s):  
N. Yoshimura ◽  
K. Shirota ◽  
T. Etoh
Keyword(s):  
Electron Microscope ◽  
High Speed ◽  
High Performance ◽  
High Vacuum ◽  
Vacuum System ◽  
Pump System ◽  
Pumping System ◽  
Diffusion Pump ◽  
Almost All ◽  
Cascade Type

One of the most important requirements for a high-performance EM, especially an analytical EM using a fine beam probe, is to prevent specimen contamination by providing a clean high vacuum in the vicinity of the specimen. However, in almost all commercial EMs, the pressure in the vicinity of the specimen under observation is usually more than ten times higher than the pressure measured at the punping line. The EM column inevitably requires the use of greased Viton O-rings for fine movement, and specimens and films need to be exchanged frequently and several attachments may also be exchanged. For these reasons, a high speed pumping system, as well as a clean vacuum system, is now required. A newly developed electron microscope, the JEM-100CX features clean high vacuum in the vicinity of the specimen, realized by the use of a CASCADE type diffusion pump system which has been essentially improved over its predeces- sorD employed on the JEM-100C.

Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

1970 ◽  
Vol 28 ◽  
pp. 360-361
Author(s):  
John W. Coleman
Keyword(s):  
Boundary Conditions ◽  
High Performance ◽  
Force Fields ◽  
Optical Design ◽  
Direct Conversion ◽  
Design Engineering ◽  
Design Data ◽  
Scalar Potentials ◽  
Geometric Elements ◽  
At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

Sign in / Sign up

Export Citation Format

Share Document