Clay-based nanocomposite coating for flexible optoelectronics applying commercial polymers

Title data

Kunz, Daniel A. ; Schmid, Jasmin ; Feicht, Patrick ; Erath, Johann ; Fery, Andreas ; Breu, Josef:
Clay-based nanocomposite coating for flexible optoelectronics applying commercial polymers.
In: ACS Nano. Vol. 7 (2013) Issue 5 . - pp. 4275-4280.
ISSN 1936-086X
DOI: https://doi.org/10.1021/nn400713e

Official URL:

Abstract in another language

Transparency, flexibility, and especially ultralow oxygen (OTR) and water vapor (WVTR) transmission rates are the key issues to be addressed for packaging of flexible organic photovoltaics and organic light-emitting diodes. Concomitant optimization of all essential features is still a big challenge. Here we present a thin (1.5 μm), highly transparent, and at the same time flexible nanocomposite coating with an exceptionally low OTR and WVTR (1.0 × 10(-2) cm(3) m(-2) day(-1) bar(-1) and <0.05 g m(-2) day(-1) at 50 RH, respectively). A commercially available polyurethane (Desmodur N 3600 and Desmophen 670 BA, Bayer MaterialScience AG) was filled with a delaminated synthetic layered silicate exhibiting huge aspect ratios of about 25 000. Functional films were prepared by simple doctor-blading a suspension of the matrix and the organophilized clay. This preparation procedure is technically benign, is easy to scale up, and may readily be applied for encapsulation of sensitive flexible electronics.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Keywords:	OLED; OPV; oxygen barrier; water vapor barrier; nanocomposite; coating; layered silicate
Institutions of the University:	Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry II Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Chair Physical Chemistry II - Univ.-Prof. Dr. Andreas Fery Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry I Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry I > Chair Inorganic Chemistry I - Univ.-Prof. Dr. Josef Breu Research Institutions Research Institutions > Collaborative Research Centers, Research Unit Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie > SFB 840 - TP B 3 Research Institutions > Collaborative Research Centers, Research Unit > SFB 840 Von partikulären Nanosystemen zur Mesotechnologie > SFB 840 - TP B 8 Graduate Schools Graduate Schools > Elite Network Bavaria Graduate Schools > Elite Network Bavaria > Struktur, Reaktivität und Eigenschaften Oxidischer Materialien
Result of work at the UBT:	Yes
DDC Subjects:	500 Science > 500 Natural sciences 500 Science > 530 Physics 500 Science > 540 Chemistry
Date Deposited:	05 Dec 2014 11:24
Last Modified:	01 Feb 2022 13:09
URI:	https://eref.uni-bayreuth.de/id/eprint/3936