High-performance organic nanoscale photoswitches based on nanogap electrodes coated with a blend of poly(3-hexylthiophene) and [6,6]-phenyl-c61-butyric acid methyl ester (P3HT:PCBM)

  • Zhu H
  • Li T
  • Zhang Y
 et al. 
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High-performance photoswitches, a key element in organic optoelectronics, are constructed by spin-coating nanogap gold electrodes with the title polymer blend (see figure). Optimizing the gap width of the electrodes gives an on/off ratio of up to 10000 at 1 mV bias. The high on/off ratio, low energy consumption, low cost, simple processing procedures, and high air stability of the photoswitches indicate bright prospects for them in organic optoelectronics.

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