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

authored by: 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.
External Organisation(s): Technische Universität Braunschweig
Leipzig University
Massachusetts Institute of Technology
The Ohio State University
OSRAM Licht AG
Type: Article
Journal: Nature Communications
Volume: 11
ISSN: 2041-1723
Publication date: 01.12.2020
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Chemistry(all), Biochemistry, Genetics and Molecular Biology(all), Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.1038/s41467-020-18914-7 (Access: Open)

BibTeX

@article{0a7ccf6a21ed45f7ad567aecb435ae63,
title = "Toward three-dimensional hybrid inorganic/organic optoelectronics based on GaN/oCVD-PEDOT structures",
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.",
author = "Linus Krieg and Florian Meierhofer and Sascha Gorny and Stefan Leis and Daniel Splith and Zhipeng Zhang and {von Wenckstern}, Holger and Marius Grundmann and Xiaoxue Wang and Jana Hartmann and Christoph Margenfeld and {Manglano Clavero}, Irene and Adrian Avramescu and Tilman Schimpke and Dominik Scholz and Lugauer, {Hans J{\"u}rgen} and Martin Strassburg and J{\"o}rgen Jungclaus and Steffen Bornemann and Hendrik Spende and Andreas Waag and Gleason, {Karen K.} and Tobias Voss",
note = "Funding information: We thank Klaas Strempel for ECV measurements and Maike R{\"u}hmann and Juliane Breitfelder for the processing and lithography of the samples. We acknowledge financial support from “Nieders{\"a}chsisches Vorab” through “Quantum-and Nano-Metrology (QUANOMET)” initiative within the project NL-3 “Sensors” and NP-3 “Modell-Nanopartikel.” We gratefully acknowledge support by the Deutsche For-schungsgemeinschaft (DFG, German Research Foundation) Research Training Group GrK1952/1 “Metrology for Complex Nanosystems” and the Braunschweig International Graduate School of Metrology B-IGSM. This work has been supported by the DFG within the research unit FOR1616 and funded by the DFG under Germany{\textquoteright}s Excellence Strategy—EXC-2123 QuantumFrontiers—390837967. We acknowledge financial support from the epitaxy competence center ec2. M.G., H.v.W., and D.S. acknowledge funding by the European Social Fund within the Young Investigator Group “Oxide Hetero-structures” (SAB 100310460).",
year = "2020",
month = dec,
day = "1",
doi = "10.1038/s41467-020-18914-7",
language = "English",
volume = "11",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",
}