Abstract
Herein, this study investigates the impact of branching-point-extended alkyl chains on the charge transport properties of three ultrahigh n-type mobility conjugated polymers. Using grazing incidence wide-angle X-ray scattering, analysis of the crystallinity of the series shows that while π–π interactions are increased for all three polymers as expected, the impact of the side-chain engineering on polymer backbone crystallinity is unique to each polymer and correlates to the observed changes in charge transport. With the three polymers exhibiting n-type mobilities between 0.63 and 1.04 cm2 V−1 s−1, these results ratify that the indolonaphthyridine building block has an unprecedented intrinsic ability to furnish high-performance n-type organic semiconductors.
Original language | English |
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Article number | 1704069 |
Journal | Advanced Functional Materials |
Volume | 27 |
Issue number | 43 |
DOIs | |
Publication status | Published - 17 Nov 2017 |
Externally published | Yes |
Keywords
- Organic Field-Effect Transistors (OFETs)
- conjugated polymers
- electron transport
- indolonapthryidine
- polymer crystallinity