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Article: Understanding the Meniscus‐Guided Coating Parameters in Organic Field‐Effect‐Transistor Fabrications
Title | Understanding the Meniscus‐Guided Coating Parameters in Organic Field‐Effect‐Transistor Fabrications |
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Authors | |
Keywords | blade coating crystal growth organic transistors semiconductor morphology |
Issue Date | 2020 |
Publisher | Wiley - VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afm |
Citation | Advanced Functional Materials, 2020, v. 30 n. 1, p. article no. 1905963 How to Cite? |
Abstract | Meniscus‐guided coating (MGC) is mainly applicable on the soluble organic semiconductors with strong π–π overlap for achieving single‐crystalline organic thin films and high‐performance organic field‐effect‐transistors (OFETs). In this work, four elementary factors including shearing speed (v), solute concentration (c), deposition temperature (T), and solvent boiling point (Tb) are unified to analyze crystal growth behavior in the meniscus‐guided coating. By carefully varying and studying these four key factors, it is confirmed that v is the thickness regulation factor, while c is proportional to crystal growth rate. The MGC crystal growth rate is also correlated to latent heat (L) of solvents and deposition temperature in an Arrhenius form. The latent heat of solvents is proportional to Tb. The OFET channels grown by the optimized MGC parameters show uniform crystal morphology (Roughness Rq < 0.25 nm) with decent carrier mobilities (average µ = 5.88 cm2 V−1 s−1 and highest µ = 7.68 cm2 V−1 s−1). The studies provide a generalized formula to estimate the effects of these fabrication parameters, which can serve as crystal growth guidelines for the MGC approach. It is also an important cornerstone towards scaling up the OFETs for the sophisticated organic circuits or mass production. |
Description | Link to Free access |
Persistent Identifier | http://hdl.handle.net/10722/282934 |
ISSN | 2021 Impact Factor: 19.924 2020 SCImago Journal Rankings: 6.069 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | CHEN, M | - |
dc.contributor.author | Peng, B | - |
dc.contributor.author | HUANG, S | - |
dc.contributor.author | Chan, PKL | - |
dc.date.accessioned | 2020-06-05T06:23:13Z | - |
dc.date.available | 2020-06-05T06:23:13Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Advanced Functional Materials, 2020, v. 30 n. 1, p. article no. 1905963 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | http://hdl.handle.net/10722/282934 | - |
dc.description | Link to Free access | - |
dc.description.abstract | Meniscus‐guided coating (MGC) is mainly applicable on the soluble organic semiconductors with strong π–π overlap for achieving single‐crystalline organic thin films and high‐performance organic field‐effect‐transistors (OFETs). In this work, four elementary factors including shearing speed (v), solute concentration (c), deposition temperature (T), and solvent boiling point (Tb) are unified to analyze crystal growth behavior in the meniscus‐guided coating. By carefully varying and studying these four key factors, it is confirmed that v is the thickness regulation factor, while c is proportional to crystal growth rate. The MGC crystal growth rate is also correlated to latent heat (L) of solvents and deposition temperature in an Arrhenius form. The latent heat of solvents is proportional to Tb. The OFET channels grown by the optimized MGC parameters show uniform crystal morphology (Roughness Rq < 0.25 nm) with decent carrier mobilities (average µ = 5.88 cm2 V−1 s−1 and highest µ = 7.68 cm2 V−1 s−1). The studies provide a generalized formula to estimate the effects of these fabrication parameters, which can serve as crystal growth guidelines for the MGC approach. It is also an important cornerstone towards scaling up the OFETs for the sophisticated organic circuits or mass production. | - |
dc.language | eng | - |
dc.publisher | Wiley - VCH Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/afm | - |
dc.relation.ispartof | Advanced Functional Materials | - |
dc.rights | This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. | - |
dc.subject | blade coating | - |
dc.subject | crystal growth | - |
dc.subject | organic transistors | - |
dc.subject | semiconductor morphology | - |
dc.title | Understanding the Meniscus‐Guided Coating Parameters in Organic Field‐Effect‐Transistor Fabrications | - |
dc.type | Article | - |
dc.identifier.email | Peng, B: brpe@hku.hk | - |
dc.identifier.email | Chan, PKL: pklc@hku.hk | - |
dc.identifier.authority | Chan, PKL=rp01532 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1002/adfm.201905963 | - |
dc.identifier.scopus | eid_2-s2.0-85074854581 | - |
dc.identifier.hkuros | 309984 | - |
dc.identifier.volume | 30 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | article no. 1905963 | - |
dc.identifier.epage | article no. 1905963 | - |
dc.identifier.isi | WOS:000494870700001 | - |
dc.publisher.place | Germany | - |
dc.identifier.issnl | 1616-301X | - |