Directed Self-Organization Ensured Enhancement of Charge Carrier Mobilities in a Star-Shaped Organic Semiconductor

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Title:	Directed Self-Organization Ensured Enhancement of Charge Carrier Mobilities in a Star-Shaped Organic Semiconductor
Authors:	Birudula, S Prabhu, D D Ghosh, T Das, S Adara, B Vijayaraghavan, R K
Keywords:	Charge Carrier Mobilities Semiconductor
Issue Date:	Sep-2020
Publisher:	Wiley
Citation:	Chemistry – A European Journal;26(49):11135-11140
Abstract:	Controlled self-organization of organic semicon-ductormolecules into specifically desiredarchitecturesonsubstratesof interestis one of the mostimperativechal-lengesfacedin the fabricationof high-performanceorgan-ic electronicdevices.Herein,we reportthe self-organiza-tion of astar-shapedmoleculeFDT-8into ahighlyfavoredstructure, namely,averticalstack.Thermal annealing offilmsofFDT-8depositedon PEDOT:PSS coatedITO sub-strateswas observedto assistthe organizationof the mol-eculesinto columnarstacks.Asignificant enhancement inthe hole( 50-fold) andthe electron( 13-fold) carriermobility was observedin single-carrierdevicesuponther-mal annealingthatcouldbe attributed to the aforemen-tionedself-organization. The abilityof thesemolecules tospontaneously self-organizewas utilized to fabricatebilay-er light-emittingdevices.
URI:	https://doi.org/10.1002/chem.202001615 http://localhost:8080/xmlui/handle/123456789/4262
Appears in Collections:	2020

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