CHAPTER 18: Challenges, Possible Strategies and Conclusions

In this book, recent progress on ambipolar materials and their related optoelectronic devices are overviewed systematically. In recent years, a wide range of materials have been synthesized and utilized for realizing ambipolar charge transport, including polymers, small molecules, organic single crystals, carbon nanotubes, colloidal semiconducting nanocrystals, organic–inorganic hybrid materials, one-dimensional materials, two-dimensional materials, and so on. Various fabrication methods have been utilized to manipulate the properties of ambipolar materials for better applications in thin-film transistors, synaptic transistors, solar cell devices, logic devices, gas sensors, light-emitting transistors, etc. The fascinating properties of ambipolar materials have attracted extensive attention from researchers all around the world, and the field is still developing rapidly.