Bottom-up growth of n-type monolayer molecular crystals on polymeric substrate for optoelectronic device applications
Open Access
- 26 July 2018
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Communications
- Vol. 9 (1), 1-8
- https://doi.org/10.1038/s41467-018-05390-3
Abstract
Self-assembly of monolayers of functional molecules on dielectric surfaces is a promising approach for the development of molecular devices proposed in the 1970s. Substrate chemically bonded self-assembled monolayers of semiconducting conjugated molecules exhibit low mobility. And self-assembled monolayer molecular crystals are difficult to scale up and limited to growth on substrates terminated by hydroxyl groups, which makes it difficult to realize sophisticated device functions, particularly for those relying on n-type electron transport, as electrons suffer severe charge trapping on hydroxyl terminated surfaces. Here we report a gravity-assisted, two-dimensional spatial confinement method for bottom-up growth of high-quality n-type single-crystalline monolayers over large, centimeter-sized areas. We demonstrate that by this method, n-type monolayer molecular crystals with high field-effect mobility of 1.24 cm(2) V-1 s(-1) and band-like transport characteristics can be grown on hydroxyl-free polymer surface. Furthermore, we used these monolayer molecular crystals to realize high-performance crystalline, gate-/light-tunable lateral organic p-n diodes.This publication has 40 references indexed in Scilit:
- Dicyanomethylene-Substituted Fused Tetrathienoquinoid for High-Performance, Ambient-Stable, Solution-Processable n-Channel Organic Thin-Film Transistors.Chemistry of Materials, 2011
- Millimeter‐Sized Molecular Monolayer Two‐Dimensional CrystalsAdvanced Materials, 2011
- A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-PuThe Journal of Chemical Physics, 2010
- Field-effect-tuned lateral organic diodesProceedings of the National Academy of Sciences of the United States of America, 2010
- Monolayer coverage and channel length set the mobility in self-assembled monolayer field-effect transistorsNature Nanotechnology, 2009
- High‐Performance Air‐Stable Bipolar Field‐Effect Transistors of Organic Single‐Crystalline Ribbons with an Air‐Gap DielectricAdvanced Materials, 2008
- A polarized responseNature Materials, 2006
- Chemoresponsive monolayer transistorsProceedings of the National Academy of Sciences of the United States of America, 2006
- General observation of n-type field-effect behaviour in organic semiconductorsNature, 2005
- Control of carrier density by self-assembled monolayers in organic field-effect transistorsNature Materials, 2004