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Semiconducting Polymers with Nanocrystallites Interconnected via Boron-Doped Carbon Nanotubes

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Title
Semiconducting Polymers with Nanocrystallites Interconnected via Boron-Doped Carbon Nanotubes
Author(s)
Yu, K; Ju Min Lee; Kim, J; Kim, G; Kang, H; Park, B; Kahng, YH; Kwon, S; Lee, S; Lee, BH; Kim, J; Hyung Il Park; Sang Ouk Kim; Lee, K
Publication Date
2014-12
Journal
NANO LETTERS, v.14, no.12, pp.7100 - 7106
Publisher
AMER CHEMICAL SOC
Abstract
Organic semiconductors are key building blocks for future electronic devices that require unprecedented properties of low-weight, flexibility, and portability. However, the low charge-carrier mobility and undesirable processing conditions limit their compatibility with low-cost, flexible, and printable electronics. Here, we present significantly enhanced field-effect mobility (μFET) in semiconducting polymers mixed with boron-doped carbon nanotubes (B-CNTs). In contrast to undoped CNTs, which tend to form undesired aggregates, the B-CNTs exhibit an excellent dispersion in conjugated polymer matrices and improve the charge transport between polymer chains. Consequently, the B-CNT-mixed semiconducting polymers enable the fabrication of high-performance FETs on plastic substrates via a solution process; the μFET of the resulting FETs reaches 7.2 cm2 V−1 s−1, which is the highest value reported for a flexible FET based on a semiconducting polymer. Our approach is applicable to various semiconducting polymers without any additional undesirable processing treatments, indicating its versatility, universality, and potential for high-performance printable electronics.
URI
https://pr.ibs.re.kr/handle/8788114/1441
ISSN
1530-6984
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
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