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A Novel Mitigation Mechanism for Photo-Induced Trapping in an Anthradithiophene Derivative Using Additives
Authors
JE Anthony
J Armitage
+8 more
JL Bredas
K Broch
I Nasrallah
J Novak
MK Ravva
A Sadhanala
G Schweicher
H Sirringhaus
Publication date
13 August 2020
Publisher
Advanced Electronic Materials
Doi
Cite
Abstract
© 2020 Wiley-VCH GmbH A novel trap mitigation mechanism using molecular additives, which relieves a characteristic early turn-on voltage in a high-mobility p-type acene-based small-molecule organic semiconductor, when processed from hydrous solvents, is reported. The early turn-on voltage is attributed to photo-induced trapping, and additive incorporation is found to be very effective in suppressing this effect. Remarkably, the molecular additive does not disturb the charge transport properties of the small-molecule semiconductor, but rather intercalates in the crystal structure. This novel technique allows for the solution-processing of small molecular semiconductors from hydrous solvents, greatly simplifying manufacturing processes for large-area electronics. Along with various electric and spectroscopic characterization techniques, simulations have given a deeper insight into the trap mitigation effect induced by the additive
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Apollo (Cambridge)
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Last time updated on 22/09/2020
DI-fusion
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Last time updated on 02/11/2020