#organic electronics
A major step forward in organic electronics
Researchers at the Laboratory of Organic Electronics, Linköping University, have developed the world’s first complementary electrochemical logic circuits that can function stably for long periods in water. This is a highly significant breakthrough in the development of bioelectronics.
The first printable organic electrochemical transistors were presented by researchers at LiU as early as 2002, and research since then has progressed rapidly. Several organic electronic components, such as light-emitting diodes and electrochromic displays, are already commercially available.
The most commonly used material is PEDOT:PSS, which is a p-type material in which the charge carriers are holes. In order to construct effective electron components, a complementary material, n-type, is required, in which the charge carriers are electrons. It has been difficult to find a sufficiently stable polymer material that can operate in water media and in which the long polymer chains can sustain high current when the material is doped.
In an article in Advanced Materials, Simone Fabiano and colleagues have presented results from an n-type conducting material in which the ladder-type structure of the polymer backbone favours ambient stability and high current when doped. One example is BBL, poly(benzimidazobenzophenanthroline), a material often used in solar cell research.
Post link
