Toward three-dimensional hybrid inorganic/organic optoelectronics based on GaN/oCVD-PEDOT structures

verfasst von
Linus Krieg, Florian Meierhofer, Sascha Gorny, Stefan Leis, Daniel Splith, Zhipeng Zhang, Holger von Wenckstern, Marius Grundmann, Xiaoxue Wang, Jana Hartmann, Christoph Margenfeld, Irene Manglano Clavero, Adrian Avramescu, Tilman Schimpke, Dominik Scholz, Hans Jürgen Lugauer, Martin Strassburg, Jörgen Jungclaus, Steffen Bornemann, Hendrik Spende, Andreas Waag, Karen K. Gleason, Tobias Voss
Abstract

The combination of inorganic semiconductors with organic thin films promises new strategies for the realization of complex hybrid optoelectronic devices. Oxidative chemical vapor deposition (oCVD) of conductive polymers offers a flexible and scalable path towards high-quality three-dimensional inorganic/organic optoelectronic structures. Here, hole-conductive poly(3,4-ethylenedioxythiophene) (PEDOT) grown by oxidative chemical vapor deposition is used to fabricate transparent and conformal wrap-around p-type contacts on three-dimensional microLEDs with large aspect ratios, a yet unsolved challenge in three-dimensional gallium nitride technology. The electrical characteristics of two-dimensional reference structures confirm the quasi-metallic state of the polymer, show high rectification ratios, and exhibit excellent thermal and temporal stability. We analyze the electroluminescence from a three-dimensional hybrid microrod/polymer LED array and demonstrate its improved optical properties compared with a purely inorganic microrod LED. The findings highlight a way towards the fabrication of hybrid three-dimensional optoelectronics on the sub-micron scale.

Externe Organisation(en)
Technische Universität Braunschweig
Universität Leipzig
Massachusetts Institute of Technology (MIT)
The Ohio State University
OSRAM Licht AG
Typ
Artikel
Journal
Nature Communications
Band
11
ISSN
2041-1723
Publikationsdatum
01.12.2020
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Allgemeine Chemie, Allgemeine Biochemie, Genetik und Molekularbiologie, Allgemeine Physik und Astronomie
Elektronische Version(en)
https://doi.org/10.1038/s41467-020-18914-7 (Zugang: Offen)