Ultrasmall magnetic field-effect and sign reversal in transistors based on donor/acceptor systems

• Thomas Reichert and
• Tobat P. I. Saragi

Beilstein J. Nanotechnol. 2017, 8, 1104–1114, doi:10.3762/bjnano.8.112

• , 40221 Düsseldorf, Germany 10.3762/bjnano.8.112 Abstract We present magnetoresistive organic field-effect transistors featuring ultrasmall magnetic field-effects as well as a sign reversal. The employed material systems are coevaporated thin films with different compositions consisting of the electron

• framework of the bipolaron model. Keywords: donor/acceptor system; organic magnetoresistance; organic transistors; sign reversal; ultrasmall magnetic field-effects; Introduction In recent years, the development of organic π-conjugated materials have perfectly meet the requirements for low-cost and

• important themes not featured in our previous paper. Further experimental investigations including different mixing compositions reveal a voltage-induced sign reversal and allow the first in-depth study of ultrasmall magnetic-field effects in transistor structures. In particular, the influence of the drain