Polarized Light Emitting Diode by Long-Range Nanorod Self-Assembling on a Water Surface
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- 作者：Aurora Rizzo ; Concetta Nobile ; Marco Mazzeo ; Milena De Giorgi ; Angela Fiore ; Luigi Carbone ; Roberto Cingolani ; Liberato Manna ; Giuseppe Gigli
- 刊名：ACS Nano
- 出版年：2009
- 出版时间：June 23, 2009
- 年：2009
- 卷：3
- 期：6
- 页码：1506-1512
- 全文大小：425K
- 年卷期：0
- ISSN：1936-086X
文摘
We demonstrate a straightforward strategy to fabricate a multilayer inorganic/organic polarized light-emitting diode device based on highly ordered arrays of rod-shaped nanocrystals as the active species. We have developed a simple and effective method that allows colloidal CdSe/CdS core/shell nanorods to be laterally aligned in smectic or nematic phases on the surface of water. A floating film of such ordered nanorods has been collected by a poly(dimethylsiloxane) (PDMS) stamp pad and transferred by contact printing onto previously evaporated organic layers. Thanks to the lateral nanorod alignment the as-prepared film exhibited strong polarized photoluminescence and it has been used as emissive layer in the polarized electroluminescent device.