Enhancing 2D growth of organic semiconductor thin films with macroporous structures via a small-molecule heterointerface

Boseok Kang, Moonjeong Jang, Yoonyoung Chung, Haena Kim, Sang Kyu Kwak, Joon Hak Oh () and Kilwon Cho ()
Additional contact information
Boseok Kang: Pohang University of Science and Technology
Moonjeong Jang: Pohang University of Science and Technology
Yoonyoung Chung: Polymer Research Institute, Pohang University of Science and Technology
Haena Kim: Pohang University of Science and Technology
Sang Kyu Kwak: School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology
Joon Hak Oh: Pohang University of Science and Technology
Kilwon Cho: Pohang University of Science and Technology

Nature Communications, 2014, vol. 5, issue 1, 1-7

Abstract: Abstract The physical structure of an organic solid is strongly affected by the surface of the underlying substrate. Controlling this interface is an important issue to improve device performance in the organic electronics community. Here we report an approach that utilizes an organic heterointerface to improve the crystallinity and control the morphology of an organic thin film. Pentacene is used as an active layer above, and m-bis(triphenylsilyl)benzene is used as the bottom layer. Sequential evaporations of these materials result in extraordinary morphology with far fewer grain boundaries and myriad nanometre-sized pores. These peculiar structures are formed by difference in molecular interactions between the organic layers and the substrate surface. The pentacene film exhibits high mobility up to 6.3 cm2 V−1 s−1, and the pore-rich structure improves the sensitivity of organic-transistor-based chemical sensors. Our approach opens a new way for the fabrication of nanostructured semiconducting layers towards high-performance organic electronics.

Date: 2014
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms5752 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5752

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms5752

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().