Crystal step edges can trap electrons on the surfaces of n-type organic semiconductors

oleh: Tao He, Yanfei Wu, Gabriele D’Avino, Elliot Schmidt, Matthias Stolte, Jérôme Cornil, David Beljonne, P. Paul Ruden, Frank Würthner, C. Daniel Frisbie

Format: Article
Diterbitkan: Nature Portfolio 2018-05-01

Deskripsi

The microstructure of organic semiconductors affects their transport properties, but directly probing this relationship is challenging. He et al. show that step edges act as electron traps on the surfaces of n-type single crystals, resulting in a field effect transistor mobility that depends on step density.