Molecular materials for high performance OPV devices (Conference Presentation)

2016 ◽  
Author(s):  
David J. Jones
Keyword(s):  
High Performance ◽  
Molecular Materials

Superalkali-alkalide ion pairs δ+(M-HMHC)-M’ δ - (M, M’ = Li, Na and K) serving as high-performance NLO molecular materials

2021 ◽  
pp. 118101
Author(s):  
Yin-Feng Wang ◽  
Jiangen Huang ◽  
Zhi-Jun Wang ◽  
Xue-Xia Liu ◽  
Jia Li ◽  
...  
Keyword(s):  
High Performance ◽  
Ion Pairs ◽  
Molecular Materials

Progress in Electroluminescent Devices Using Molecular Thin Films

MRS Bulletin ◽  
1997 ◽  
Vol 22 (6) ◽  
pp. 39-45 ◽  
Author(s):  
Tetsuo Tsutsui
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Charge Injection ◽  
Visible Spectral Range ◽  
Flat Panel Display ◽  
Organic Thin Film ◽  
Molecular Materials ◽  
Flat Panel ◽  
High Quality ◽  
Injection Type

Organic electroluminescence (EL) is moving from a simple curiosity in laboratories to the reality of commercial use. The day will soon arrive when high-quality green EL displays find practical usage. Charge-injection-type EL involves the combination of positive and negative charge carriers injected from electrodes in contact with an organic thin film. The occurrence of EL through bipolar charge injection into organic solids was clarified for single crystals of anthracene and related compounds in the 1960s. Few new developments in physics exist today for organic EL. However worldwide enthusiasm for charge-injection-type EL, which started in the mid-1980s, has been increasing rapidly. The motivation for this renewed interest is straightforward. High-efficiency surface emission across the whole visible spectral range can be obtained easily, and prospects now exist for full-color flat-panel-display technology.Since the demonstration of high-performance EL devices made of multilayers of vacuum-sublimed dye films by Tang and VanSlyke, much progress has occurred in the research and development of EL devices made from molecular materials. A variety of molecular materials such as vacuum-sublimed dye films, fully π-conjugated polymers, polymers with chromophores orr skeletal chains, or side chains, and polymer-dispersed dye films can be used for EL devices.Among a variety of EL devices, multilayer-structure versions made of vacuum-sublimed dye films exhibit the best performance. Application-oriented research in the development of high-quality flat-panel displays has been performed during the past 10 years, mainly in Japan's private-sector laboratories.

High performance organic photovoltaic devices using amorphous molecular materials with high charge-carrier drift mobilities

2009 ◽  
Vol 94 (6) ◽  
pp. 063304 ◽  
Author(s):  
Hiroshi Kageyama ◽  
Hitoshi Ohishi ◽  
Masatake Tanaka ◽  
Yutaka Ohmori ◽  
Yasuhiko Shirota
Keyword(s):  
Charge Carrier ◽  
High Performance ◽  
Organic Photovoltaic ◽  
Molecular Materials ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
High Charge

Material perceptions and advances in molecular heteroacenes for organic solar cells

2020 ◽  
Vol 13 (12) ◽  
pp. 4738-4793 ◽  
Author(s):  
Amaresh Mishra
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Molecular Materials

This review showcases the development of heteroacene-based molecular materials and their role in high performance binary, ternary, tandem and semitransparent organic solar cells.

scholarly journals Semiconducting Organic Molecular Materials

2010 ◽  
Vol 61 (5) ◽  
pp. 314-320 ◽  
Author(s):  
Juraj Filo ◽  
Martin Putala
Keyword(s):  
Organic Semiconductors ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Molecular Materials ◽  
Feature Article ◽  
Recent Advances

Semiconducting Organic Molecular MaterialsThis feature article gives an overview of recent advances in development of high performance molecular organic semiconductors for field-effect transistors with emphasis on the structure of molecular materials and requirements for high-performance.

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.

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