A new method to make organic semiconductors more conductive used oxygen as a dopant making it more scalable and cost-effective.
The new method involves dipping the conductive plastic into a special salt solution – a photocatalyst – and then illuminating it with light for a short time resulting in a p-doped conductive plastic., from smartphones, aircraft, and pacemakers to supercomputers and numerous other applications. This mineral, which forms the foundation for modern technologies, shows promise for further advancements.
Unfortunately, standard dopants are usually very reactive causing them to be unstable or expensive, challenging to manufacture, or all of these. “Our approach was inspired by nature, as it shares many analogies with photosynthesis, for example. In our method, light activates a photocatalyst, which then facilitates electron transfer from a typically inefficient dopant to the organic semiconductor material,” stated Fabiano.
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