High-Performance Emission/Color Dual-Switchable Polymer-Bearing Pendant Tetraphenylethylene (TPE) and Triphenylamine (TPA) Moieties

2019 ◽  
Vol 52 (14) ◽  
pp. 5131-5139 ◽  
Author(s):  
Ningwei Sun ◽  
Kaixin Su ◽  
Ziwei Zhou ◽  
Xuzhou Tian ◽  
Zhao Jianhua ◽  
...  
Keyword(s):  
High Performance ◽  
Emission Color ◽  
Polymer Bearing

High-Performance n-Type Electrical Memory and Morphology-Induced Memory-Mode Tuning of a Well-Defined Brush Polymer Bearing Perylene Diimide Moieties

2015 ◽  
Vol 1 (10) ◽  
pp. 1500197 ◽  
Author(s):  
Young Yong Kim ◽  
Brian J. Ree ◽  
Makoto Kido ◽  
Yong-Gi Ko ◽  
Ryohei Ishige ◽  
...  
Keyword(s):  
High Performance ◽  
Perylene Diimide ◽  
Brush Polymer ◽  
Polymer Bearing

scholarly journals Large temperature tuning of the emission color of a phosphor by dual use of Raman and photoluminescence signals

2020 ◽  
Vol 7 (4) ◽  
pp. 1101-1105
Author(s):  
Arnab De ◽  
Rajeev Ranjan
Keyword(s):  
High Performance ◽  
Large Temperature ◽  
Dual Use ◽  
Emission Color ◽  
Temperature Tuning

High performance optical thermomertry by combining Raman and photoluminescence signals from phosphor materials.

Anthracene-based bipolar deep-blue emitters for efficient white OLEDs with ultra-high stabilities of emission color and efficiency

2021 ◽  
Vol 9 (15) ◽  
pp. 5198-5205
Author(s):  
Xiangyu Zhu ◽  
Yinghao Li ◽  
Zilong Wu ◽  
Chengwei Lin ◽  
Dongge Ma ◽  
...  
Keyword(s):  
High Performance ◽  
Blue Emission ◽  
High Luminance ◽  
Emission Layer ◽  
Deep Blue ◽  
Emission Color ◽  
Blue Emitters ◽  
White Oleds

High-performance two-color hybrid warm white OLEDs are fabricated using TPA-TAn-DMAC as blue emission layer, achieving ultra-high stabilities of EL efficiency and color at high luminance over 30 000 cd m−2.

High-performance, color-tunable fiber shaped organic light-emitting diodes

Nanoscale ◽  
2018 ◽  
Vol 10 (34) ◽  
pp. 16184-16192 ◽  
Author(s):  
Keum-Jin Ko ◽  
Hock Beng Lee ◽  
Hyun Myung Kim ◽  
Gil Ju Lee ◽  
So-Ra Shin ◽  
...  
Keyword(s):  
Hollow Fiber ◽  
High Performance ◽  
Organic Light Emitting Diodes ◽  
High Luminance ◽  
Light Emitting ◽  
Organic Light ◽  
Emission Color ◽  
Color Tunable ◽  
Color Tunability ◽  
Luminance Efficiency

Hollow-fiber shaped OLED with unprecedentedly high luminance efficiency and emission color tunability.

BIAN based functional diimine polymer binder for high performance Li ion batteries

2017 ◽  
Vol 5 (34) ◽  
pp. 17909-17919 ◽  
Author(s):  
Sai Gourang Patnaik ◽  
Raman Vedarajan ◽  
Noriyoshi Matsumi
Keyword(s):  
Lithium Ion Batteries ◽  
Conjugated Polymer ◽  
High Performance ◽  
Graphite Electrode ◽  
Lithium Ion ◽  
Polymer Binder ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Polymer Bearing

A bis-imino-acenaphthenequinone (BIAN)–fluorene copolymer (π conjugated polymer bearing BIAN and fluorene units) binder was designed, synthesised and used for the fabrication of a graphite electrode in lithium-ion batteries.

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.

Prospects for convergent beam electron diffraction with a 200kV cold field-emission transmission electron microscope

1991 ◽  
Vol 49 ◽  
pp. 466-467
Author(s):  
J W Steeds ◽  
R Vincent
Keyword(s):  
Field Emission ◽  
High Performance ◽  
Small Diameter ◽  
Convergent Beam Electron Diffraction ◽  
Zone Axis ◽  
Medium Voltage ◽  
Transmission Electron ◽  
Good Crystallinity ◽  
Special Modification ◽  
Convergent Beam

We review the analytical powers which will become more widely available as medium voltage (200-300kV) TEMs with facilities for CBED on a nanometre scale come onto the market. Of course, high performance cold field emission STEMs have now been in operation for about twenty years, but it is only in relatively few laboratories that special modification has permitted the performance of CBED experiments. Most notable amongst these pioneering projects is the work in Arizona by Cowley and Spence and, more recently, that in Cambridge by Rodenburg and McMullan.There are a large number of potential advantages of a high intensity, small diameter, focussed probe. We discuss first the advantages for probes larger than the projected unit cell of the crystal under investigation. In this situation we are able to perform CBED on local regions of good crystallinity. Zone axis patterns often contain information which is very sensitive to thickness changes as small as 5nm. In conventional CBED, with a lOnm source, it is very likely that the information will be degraded by thickness averaging within the illuminated area.

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