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. 2016 May 13;2(5):e1600076. doi: 10.1126/sciadv.1600076

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Copyright © 2016, The Authors

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.

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Fig. 6 — (A to D) AFM height and phase images of the neat DPPTTT thin film (A and B) and the DPPTTT-NMe₄I thin film at a molar ratio of 30:1 (C and D). The circles in (C) highlight the formation of more connected and larger fiber aggregates within the DPPTTT-NMe₄I thin film in comparison with those marked by circles in (A) for the neat DPPTTT thin film.