Speeding the development of organic semiconductors for flexible displays
August 18, 2011 // Julien Happich
Organic semiconductors hold immense promise for use in thin film and flexible displays but they haven't yet reached the speeds needed to drive high definition displays. Inorganic materials such as silicon are fast and durable, but don't bend, so the search for a fast, durable organic semiconductor continues. Now a team led by researchers at Stanford and Harvard universities has developed a new organic semiconductor material that is among the speediest yet.
The scientists also accelerated the development process by using a predictive approach that lopped many months and could lop years off the typical timeline. For the most part, developing a new organic electronic material has been a time-intensive, somewhat hit-or-miss process, requiring researchers to synthesize large numbers of candidate materials and then test them.
The Stanford and Harvard-led group decided to try a computational predictive approach to substantially narrow the field of candidates before expending the time and energy to make any of them.
"Synthesizing some of these compounds can take years," said Anatoliy Sokolov, a postdoctoral researcher in chemical engineering at Stanford, who worked on synthesizing the material the team eventually settled on. "It is not a simple thing to do."
Sokolov works in the laboratory of Zhenan Bao, an associate professor of chemical engineering at Stanford. Aln Aspuru-Guzik, an associate professor of chemistry and chemical biology at Harvard, led the research group there and directed the theory and computation efforts.
The researchers used a material known as DNTT, which had already been shown to be a good organic semiconductor, as their starting point, then considered various compounds possessing chemical and electrical properties that seemed likely to enhance the parent material's performance if they were attached. They came up with seven promising candidates. Semiconductors are all about moving an electrical charge from one place to another as fast as possible. How well a material performs that task is determined by how easy it is for a charge to hop onto the material and how easily that charge can move from one molecule to another within the material.All news
MEMS leaders under pressure, says Yole
July 31, 2014
The MEMS industry is changing as established leaders with manufacturing and an emphasis on delivering components are put ...
OLED lighting to be competitive with LEDs by 2016
Panasonic and Tesla Gigafactory battery plan forges ahead
Surface inspection tool can get customized
Wireless charging - a more cost-effective approach
Sony, Panasonic, Japan Display plan OLED joint venture
July 30, 2014
Sony Corp., Panasonic Corp., and Japan Display Inc. are working together to create a new company, to be named JOLED, which ...
Sony, TSMC win award for silicon-plastic process development
Sensor footprint evolution: Does size matter?
Memscap breaks even on rising Q2 revenue
- Building Blocks for the Internet of Things
- New Linear Regulators Solve Old Problems
- Testing GPS with a Simulator
- DSM presents: Select the best plastic for DDR4
InterviewCEO interview: China, not Apple, is way to go, says mCube CEO
Ben Lee, CEO of MEMS startup mCube, explains why he wants to spend $37 million on being a supplier of sensors to Chinese ODMs and avoiding a design win with Apple or Samsung.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Altium Ltd is offering EETimes Europe's readers the chance to win one TASKING VX-Toolset for ARM Cortex-M Premium Edition, normally licensed for 2.395 Euros, for ultra-rapid prototyping and code development around ARM Cortex-M based microcontrollers.
The VX-toolset for ARM is the first TASKING compiler suite to receive the Software Platform technology, which is seamlessly...Read more
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.