How intermolecular geometrical disorder affects the molecular doping of donor–acceptor copolymers

D Di Nuzzo, C Fontanesi, R Jones, S Allard… - Nature …, 2015 - nature.com
Molecular doping of conjugated polymers represents an important strategy for improving
organic electronic devices. However, the widely reported low efficiency of doping remains a …

Driving force and optical signatures of bipolaron formation in chemically doped conjugated polymers

MG Voss, JR Challa, DT Scholes, PY Yee… - Advanced …, 2021 - Wiley Online Library
Molecular dopants are often added to semiconducting polymers to improve electrical
conductivity. However, the use of such dopants does not always produce mobile charge …

Readout of Oriented Triplet Excitons in Linear Acenes via Room-Temperature Electrically Detected Magnetic Resonance

TW Wagner, P Niyonkuru, JC Johnson… - The Journal of Physical …, 2024 - ACS Publications
Optically generated molecular spin centers offer an attractive platform for room-temperature
spintronic and quantum applications. The linear acene family of molecules are especially …

Ultrafast transient absorption spectroscopy of doped P3HT films: distinguishing free and trapped polarons

MG Voss, DT Scholes, JR Challa, BJ Schwartz - Faraday Discussions, 2019 - pubs.rsc.org
It is generally presumed that the vast majority of carriers created by chemical doping of
semiconducting polymer films are coulombically trapped by the counteranion, with only a …

The rise of organic magnetoresistance: materials and challenges

M Gobbi, E Orgiu - Journal of Materials Chemistry C, 2017 - pubs.rsc.org
This paper provides a brief review of recent progress regarding the magnetoresistive effect
observed in organic semiconductors (OMAR). While the physical phenomena associated …

[HTML][HTML] Separating hyperfine from spin-orbit interactions in organic semiconductors by multi-octave magnetic resonance using coplanar waveguide microresonators

G Joshi, R Miller, L Ogden, M Kavand, S Jamali… - Applied Physics …, 2016 - pubs.aip.org
Separating the influence of hyperfine from spin-orbit interactions in spin-dependent carrier
recombination and dissociation processes necessitates magnetic resonance spectroscopy …

Revealing weak spin-orbit coupling effects on charge carriers in a -conjugated polymer

H Malissa, R Miller, DL Baird, S Jamali, G Joshi… - Physical Review B, 2018 - APS
We measure electrically detected magnetic resonance on organic light-emitting diodes
made of the polymer poly [2-methoxy-5-(2-ethylhexyloxy)-1, 4-phenylenevinylene] at room …

Trap-Filling Magnetoconductance as an Initialization and Readout Mechanism of Triplet Exciton Spins

TW Wagner, JC Johnson, OG Reid - The Journal of Physical …, 2022 - ACS Publications
Photoexcited triplet states are promising candidates for hybrid qubit systems, as they can be
used as a controlling gate for nuclear spins. But microwave readout schemes do not …

[HTML][HTML] Organic magnetoresistance from deep traps

NJ Harmon, ME Flatté - Journal of Applied Physics, 2014 - pubs.aip.org
We predict that singly occupied carrier traps, produced by electrical stress or irradiation
within organic semiconductors, can cause spin blockades and the large room-temperature …

Magneto-conductance characteristics of trapped triplet–polaron and triplet–trapped polaron interactions in anthracene-based organic light emitting diodes

W Jia, Q Chen, Y Chen, L Chen, Z Xiong - … Chemistry Chemical Physics, 2016 - pubs.rsc.org
The effects of a magnetic field on the dissociation of triplet excitons by free charges (TCI) are
well understood. However, the magneto-conductance (MC) characteristics of trapped triplet …