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RISS 인기검색어
- 검색키워드
- 저자 : Lechmann, Maria C. (검색결과 2 건)
- 무료
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Kessler, Daniel,Lechmann, Maria C.,Noh, Seunguk,Berger, Rü,diger,Lee, Changhee,Gutmann, Jochen S.,Theato, Patrick WILEY-VCH Verlag 2009 Macromolecular rapid communications Vol.30 No.14
<P>Optoelectronic devices usually consist of a transparent conductive oxide (TCO) as one electrode. Interfacial engineering between the TCO electrode and the overlying organic layers is an important method for tuning device performance. We introduce poly(methylsilsesquioxane)–poly(N,N-di-4-methylphenylamino styrene) (PMSSQ–PTPA) as a potential hole-injection layer forming material. Spin-coating and thermally induced crosslinking resulted in an effective planarization of the anode interface. HOMO level (−5.6 eV) and hole mobility (1 × 10<SUP>−6</SUP> cm<SUP>2</SUP> · Vs<SUP>−1</SUP>) of the film on ITO substrates were measured by cyclovoltammetry and time-of-flight measurement demonstrating the hole injection capability of the layer. Adhesion and stability for further multilayer built-up could be demonstrated. Contact angle measurements and tape tests after several solvent treatments proved the outstanding film stability.</P><P> <img src='wiley_img/10221336-2009-30-14-MARC200900196-gra001.gif' alt='wiley_img/10221336-2009-30-14-MARC200900196-gra001'> </P> <B>Graphic Abstract</B> <P>Poly(methylsilsesquioxane)–poly(N,N-di-4-methylphenylamino styrene) (PMSSQ–PTPA) as potential hole-injection layer (HIL) forming material was used for effective planarization of the anode interface. The obtained HIL showed high stability and adhesion even after several solvent treatments. <img src='wiley_img/10221336-2009-30-14-MARC200900196-content.gif' alt='wiley_img/10221336-2009-30-14-MARC200900196-content'> </P>
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Templated Organic and Hybrid Materials for Optoelectronic Applications
Haberkorn, Niko,Lechmann, Maria C.,Sohn, Byeong Hyeok,Char, Kookheon,Gutmann, Jochen S.,Theato, Patrick WILEY-VCH Verlag 2009 Macromolecular Rapid Communications Vol.30 No.14
<P>The review highlights different approaches to template organic materials as well as hybrid materials that find or are expected to find application in optoelectronic devices. The first templating approach focuses on the use of preformed nanoporous membranes as templates for organic materials and polymeric materials. Such nanoporous templates can be track-etched membranes, anodic aluminum oxide membranes and other variants thereof, or block copolymer templates. Further, opals have been described as templates. In the second part, we have summarized developments that take advantage of self-assembly processes to pattern hybrid materials. Examples are sol-gel templating techniques using amphiphiles, evaporation-induced self-assembly, lyotropic templating as well as templating from block copolymers. Both routes are very promising templating approaches for optoelectronic materials and represent complementary rather than competing techniques.</P><P> <img src='wiley_img/10221336-2009-30-14-MARC200900213-gra001.gif' alt='wiley_img/10221336-2009-30-14-MARC200900213-gra001'> </P> <B>Graphic Abstract</B> <P>This review compiles different approaches to template organic materials as well as hybrid materials that find application in optoelectronic devices. Two templating approaches are presented and discussed in detail, e.g. the use of preformed nanoporous membranes as templates for organic materials, and self-assembly processes of materials to pattern hybrid materials. Both routes are very promising templating approaches for optoelectronic materials and represent complementary rather than competing techniques. <img src='wiley_img/10221336-2009-30-14-MARC200900213-content.gif' alt='wiley_img/10221336-2009-30-14-MARC200900213-content'> </P>
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