Qi Wang, Yichun Luo, and Hany Aziz We study the photostability of organic light-emitting devices (OLEDs). Irradiating OLEDs by external illumination is found to result in a gradual increase in driving voltage and decrease in electroluminescence (EL) efficiency. This photoinduced degradation in device performance is found to be caused ... [Appl. Phys. Lett.

Soon Mi Park, Yoon Hak Kim, Yeonjin Yi, Hyoung-Yun Oh, and Jeong Won Kim We report the enhancement of hole current density in the hole transport part of an inverted top-emission organic light emitted diode by applying an organic insertion layer of 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN). Poor hole transporting performance of Al/4,4-bis(N-phenyl-1-napht ... [Appl. Phys.

Xianfeng Qiao, Jiangshan Chen, Xinglin Li, and Dongge Ma Conduction mechanism in molybdenum trioxide (MoO)-doped hole- and electron-type organic semiconductors is investigated. The used hole-transporting materials are N,N-diphenyl-N,N-bis(1-naphthylphenyl)-1, 1-biphen4, 4-diamine, 4,4-tri(N-carbazolyl)triphenylamine, 4, 4-N,N-dicarbazole-biphenyl, and pen ... [J. Appl. Phys. 107, 104505 (2010)] published Mon May 24, 2010.

A quantitative examination of the kinetics of sorption of hydrophobic organic chemicals by soils from mixed solvents reveals that the reverse sorption rate constant (k2) increases log-linearly with increasing volume fraction of organic cosolvent (fc). This relationship was expected, based on the existence of a log-log inverse relationship between k2 and the equilibrium sorption constant (K p), and a log-linear inverse relationship between Kp and fc. These results are interpreted in terms of a conceptual model wherein sorption kinetics is controlled by diffusion of sorbate within the matrix of sorbent organic matter. Decreased polarity of the mixed solvent, caused by the addition of a cosolvent appears to influence the conformation of the polymeric organic matter and ,hence, the rate of sorbate diffusion.

Structures with dimensions of 28 nm have been produced in semiconducting polymers using a thermochemical approach to patterning.

Submitted by: Mickie Swisher, Ph.D., Associate Professor, Sustainable AgriculturePDF File

Organic light-emitting field-effect transistors surpass the external quantum efficiency of analogous organic light-emitting diodes.

In an experimental tour de force involving ultrahigh vacuum and low-temperature scanning probe techniques, researchers have created organic nanostructures that show evidence of unconventional superconductivity.

Plastics and other organic materials can be fashioned into bendy, stretchy sheets. Exploiting that flexibility for electronic devices entails finding organics that exhibit useful phenomena (see Physics Today, October 2008, page 18). Display panels in cell phones already make use of the semiconductivity and light emission of two organics, polyfluorene and poly(phenylene–vinylene).

Organic semiconductors could one day be used in new types of spintronic devices. Before realistic applications can be achieved however, more experimental and theoretical work is needed to understand the mechanism of spin injection and spin transport.

I had an interesting email in response to my post on returning from the SciFoo meeting. I have to say, there weren't too many chemists at that one - not that it's a representative slice of science, to be sure. (Theoretical physicists and computer science people were definitely over-represented, although they were fun to talk to).

Scientists have effectively discovered a way to order the molecules in the PEDOT, the single most industrially important conducting polymer.

Scientists have effectively discovered a way to order the molecules in the PEDOT, the single most industrially important conducting polymer.

Scientists have effectively discovered a way to order the molecules in the PEDOT, the single most industrially important conducting polymer.

Further achievements in the realm of organic and molecular electronics — even at the level of device applications — requires greater understanding of the materials at a fundamental level. This insight can only come with input from researchers in several disciplines working together on the materials from different perspectives.

Scientists have effectively discovered a way to order the molecules in the PEDOT, the single most industrially important conducting polymer.

Scientists have effectively discovered a way to order the molecules in the PEDOT, the single most industrially important conducting polymer.

The intercalation of potassium into a simple aromatic hydrocarbon results in a new class of organic superconductors.

Scientists have effectively discovered a way to order the molecules in the PEDOT, the single most industrially important conducting polymer.

Scientists have effectively discovered a way to order the molecules in the PEDOT, the single most industrially important conducting polymer.

Submitted by: Mickie Swisher, Ph.D., Associate Professor, Sustainable AgriculturePDF Version

Scientists have effectively discovered a way to order the molecules in the PEDOT, the single most industrially important conducting polymer.

Organic Chemistry in the News. Organic compounds, protein engineering, and more. Read all the latest research in the field of organic chemistry. Full-text with images. Free.

Organic Chemistry in the News. Organic compounds, protein engineering, and more. Read all the latest research in the field of organic chemistry. Full-text with images. Free.

A little Polish company you've never heard of is beating the tech titans in a key technology of the 21st century

In 1952 Martin Gardner, who just passed away this week at the age of 95, wrote about organic farming in his book Fads and Fallacies in the Name of Science. He characterized it as a food fad without scientific justification. Now, 58 years later, the science has not changed much at all.

by David Gumpert
Organic Valley started up in 1988 with a vision of being a different kind of milk cooperative, one that helped save small family dairies via promoting organic dairy products.

“It was an idealistic, mission-oriented place in those days, spreading the gospel about the ... — full article at grist.org

Scientists have effectively discovered a way to order the molecules in the PEDOT, the single most industrially important conducting polymer.