Short-Wave Infrared Optoelectronics with Colloidal CdHgSe/ZnCdS Core/Shell Nanoplatelets
Colloidal semiconductor nanocrystals (NCs) are an efficient and cost-effective class of nanomaterials for optoelectronic applications. Advancements in NC-based optoelectronic devices have resulted from progress in synthetic chemistry, adjustable surface properties, and optimized device architectures. Semiconductor nanoplatelets (NPLs) stand out among other NCs due to their precise growth control, yielding uniform thickness with submonolayer roughness. In this study, we demonstrate the versatility of core/shell Cd <sub><i>x</i></sub> Hg<sub>1-<i>x</i></sub> Se/Zn <sub><i>y</i></sub> Cd<sub>1-<i>y</i></sub> S NPLs for optoelectronic applications in the short-wave infrared (SWIR) spectral range. We employed the very same core/shell NPLs for the fabrication of light-emitting diodes and photodetectors alike, achieving significant performance in both electroluminescence (external quantum efficiency ranging from 7.5% at 1280 nm to 3.8% at 1550 nm) and detection (responsivity of 0.24 A W<sup>-1</sup> at 1200 nm).
Authors
- Francesco De Boni (ORCID: https://orcid.org/0000-0001-5285-1008)
- Mirko Prato (ORCID: https://orcid.org/0000-0002-2188-8059)
- Hossein Roshan (ORCID: https://orcid.org/0000-0001-7163-8501)
- Vladimir Lesnyak (ORCID: https://orcid.org/0000-0002-2480-8755)
- Fabian Paulus (ORCID: https://orcid.org/0000-0001-7068-440X)
- Jinfei Dai (ORCID: https://orcid.org/0000-0001-8257-4208)
- Matilde Cirignano (ORCID: https://orcid.org/0000-0001-5939-062X)
- Francesco Di Stasio (ORCID: https://orcid.org/0000-0002-2079-3322)
- Anatol Prudnikau (ORCID: https://orcid.org/0000-0002-4088-4942)
Institutions
- Leibniz Institute for Solid State and Materials Research (DE)
- Italian Institute of Technology (IT)
- Technische Universität Dresden (DE)
- Xi'an Jiaotong University (CN)
Publication Details
- Journal
- ACS Photonics
- Published
- 2024-12-19
- DOI
- https://doi.org/10.1021/acsphotonics.4c01944
- Citations
- 4
- Primary Topic
- Quantum Dots Synthesis And Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.47
Funders
- European Commission
- Deutsche Forschungsgemeinschaft
- Bundesministerium für Bildung und Forschung
- Technische Universität Dresden
- Istituto Italiano di Tecnologia
- Leibniz-Gemeinschaft
- Division of Materials Research
- H2020 European Research Council