Optically switchable transistors by simple incorporation of photochromic systems into small-molecule semiconducting matrices

The fabrication of multifunctional high-performance organic thin-film transistors as key elements in future logic circuits is a major research challenge. Here we demonstrate that a photoresponsive bi-functional field-effect transistor with carrier mobilities exceeding 0.2cm 2 V-1 s-1 can be developed by incorporating photochromic molecules into an organic semiconductor matrix via a single-step solution processing deposition of a two components blend. Tuning the interactions between the photochromic diarylethene system and the organic semiconductor is achieved via ad-hoc side functionalization of the diarylethene. Thereby, a large-scale phase-segregation can be avoided and superior miscibility is provided, while retaining optimal π-π stacking to warrant efficient charge transport and to attenuate the effect of photoinduced switching on the extent of current modulation. This leads to enhanced electrical performance of transistors incorporating small conjugated molecules as compared with polymeric semiconductors. These findings are of interest for the development of high-performing optically gated electronic devices.

Ingår i:Nature Communications: Springer Science and Business Media LLC62041-17232041-1723

Av författaren/redakt...: El Gemayel, M.; Börjesson, Karl, ...; Herder, M.; Duong, D.T.; Hutchison, J.A.; Ruzié, C.; visa fler...; Schweicher, G.; Salleo, Alberto; Geerts, Y.; Hecht, S.; Orgiu, E.; Samorì, P.; visa färre...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.