Ray, S and Panidi, J and Mukhopadhyay, T and Salzner, U and Anthopoulos, TD and Patil, S (2019) Electrochemical Stability and Ambipolar Charge Transport in Diketopyrrolopyrrole-Based Organic Materials. In: ACS Applied Electronic Materials, 1 (10). pp. 2037-2046.
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Abstract
An important strategy for realizing flexible complementary circuits with organic semiconductors is to achieve balanced ambipolar charge transport properties with reduced anisotropy. Here, we present a series of star-shaped diketopyrrolopyrrole (DPP)-based organic materials synthesized for improved intermolecular charge transport while retaining the ambipolar charge transport properties of their linear counterparts. Steady-state UV-visible spectroscopic studies confirm that the oligomers are highly aggregated in the thin film as evidenced from appearance of prominent vibronic features and red-shifted absorption bands. Ambipolar transport properties of these materials were verified in organic field-effect transistors (OFETs). The results show that the star-shaped DPP systems have the potential to outperform their linear counterparts in devices. Copyright © 2019 American Chemical Society.
| Item Type: | Journal Article |
|---|---|
| Publication: | ACS Applied Electronic Materials |
| Publisher: | American Chemical Society |
| Additional Information: | The copyright for this article belongs to Authors |
| Keywords: | Absorption spectroscopy; Flexible electronics; Organic field effect transistors; Red Shift; Spectroscopic analysis; Stars; Transport properties, Ambipolar charge transports; Complementary circuits; Diketopyrrolopyrroles; Electrochemical stabilities; Organic materials; Spectroscopic studies; Steady state; Vibronic features, Carrier transport |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 04 Aug 2021 11:40 |
| Last Modified: | 04 Aug 2021 11:40 |
| URI: | http://eprints.iisc.ac.in/id/eprint/69080 |
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