Journal
ORGANIC ELECTRONICS
Volume 55, Issue -, Pages 165-169Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2018.01.015
Keywords
Magnetic field effects (MFEs); Forster energy transfer; Planar heterojunction device; Colloidal quantum dots; Tuning
Funding
- National Natural Science Foundation (NSF) of China [11374242]
- Research and Innovation Project of Graduate Students of Chongqing [CYB16056]
Ask authors/readers for more resources
Organic magnetic field effects (MFEs) have attracted a lot of interests in foundation research and practical applications. In this work, a thin layer of colloidal quantum dots QDs was incorporated into the planar heterojunction-based polymer light-emitting diodes (PLEDs) as a sensitizer to tune the organic MFEs. As a result, the magneto-electroluminescence (MEL) and magneto-conductance (MC) in the poly[2-(4-(3',7'-dimethyloctyloxyphenyl)-1,4-phenylene vinylene)] (P-PPV)-based PLEDs can be tuned synchronously from positive to negative. The current and temperature dependences of the negative MEL and MC were studied elaborately, showing normal and anomalous dependences compared to those of typical positive MEL and MC, respectively. The underlying mechanism of negative MEL and MC was examined. It is revealed that efficient Forster energy transfer between P-PPV and QDs is responsible for the effective tuning of MEL and MC via promoting the reverse intersystem crossing between electron-hole pairs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available