Issue 35, 2021

Measuring the impact of spin-triplet exciton orientation on photocurrent in an organic transistor

Abstract

The dynamics of triplet and singlet exciton populations in organic semiconductors offer interesting possibilities in improving optical device efficiency, while also attracting interest for future applications as manipulable states for quantum-state based computing. For technological applications, transduction of the exciton state is essential, thus detailed information on how the exciton dynamics affect device outputs is required. In this study, we measure the magnetic field response of the photocurrent in organic transistors to investigate the electrical signal resulting from singlet–triplet exciton dynamics. We find that controlling the orientation of the magnetic dipole orientation of the triplet by varying both the magnitude and orientation of the magnetic field with respect to single crystal axes in anti-2,8-difluoro-5,11-bis(triethylsilylethynyl)anthradithiophene (adiF TES ADT) allows us to manipulate the amount of current detected as a result of singlet fission.

Graphical abstract: Measuring the impact of spin-triplet exciton orientation on photocurrent in an organic transistor

Supplementary files

Article information

Article type
Paper
Submitted
02 apr 2021
Accepted
21 iyn 2021
First published
30 iyn 2021

J. Mater. Chem. C, 2021,9, 11809-11814

Author version available

Measuring the impact of spin-triplet exciton orientation on photocurrent in an organic transistor

E. G. Bittle, S. Engmann, K. Thorley and J. Anthony, J. Mater. Chem. C, 2021, 9, 11809 DOI: 10.1039/D1TC01539G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements