Organic transistor improves with age
Ageing may be as important to electronics as it is to good wine. A plastic transistor doubles its performance if simply left to sit at room temperature for a week. — Cheap to mould, pentacene transistors are a promising candidate for organic electronics.
Context & Ripple Effects
This result lands three weeks after Intel announced a fundamental redesign of its silicon transistors to extend Moore's Law, and it sits at the opposite end of the same field: while the biggest chipmaker buys performance with new materials and finer geometry, this finding gets it from doing nothing at all — a plastic pentacene transistor left at room temperature for a week doubles its performance.
First-order effects
- Anyone building circuits from cheap-to-mould pentacene gains roughly double the device performance by inserting a passive week-long room-temperature rest into production, with no new equipment or process steps.
- The finding directly answers the standard objection to organic electronics — unstable, drifting devices — since the dominant change over the device's early life here is improvement, not degradation.
Second-order effects
- If the ageing effect survives commercial fabrication, the cost case for organic electronics strengthens: performance arrives free after manufacture rather than through capital-intensive scaling, which pressures the economics of using conventional silicon in low-cost, flexible, or disposable products.
Third-order effects
- The result treats time and material behaviour as engineering parameters alongside lithography — a direction that, if the pattern holds across organic semiconductors, pushes the industry toward designing for how devices age rather than only how small they can be made.
The trend: Late-2000s transistor progress is splitting between ever-finer silicon scaling and cheaper alternative materials whose gains come from chemistry and processing rather than smaller dimensions.