DataVXNanoscalePaper
journal article·2023Open access

Improving the stability of photodoped metal oxide nanocrystals with electron donating graphene quantum dots

Andrea Camellini, Luca Rebecchi, Andrea Rubino, Wenhui Niu, Sang Won Kim, Ji Ma, Xinliang Feng, Ilka Kriegel

Nanoscale· Volume 15· Issue 42
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Source abstract

Abstract

Doped metal oxide nanocrystals are emerging as versatile multi-functional materials with the potential to address several limitations of the current light-driven energy storage technology thanks to their unique ability to accumulate a large number of free electrons upon UV light exposure. The combination of these nanocrystals with a properly designed hole collector could lead to steady-state electron and hole accumulation, thus disclosing the possibility for light-driven energy storage in a single set of nanomaterials. In this framework, it is important to understand the role of the hole collector during UV light exposure. Here we show, via optical absorbance measurements under UV light, that well-defined graphene quantum dots with electron-donating character can act as hole acceptors and improve the stability of the photo-generated electrons in Sn-doped In2O3 nanocrystals. The results of this study offer new insight into the implementation of photo-charged storage devices based on hybrid organic/inorganic nanostructures.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

Nanomaterials

OpenAlex topics: Quantum Dots Synthesis And Properties · Carbon and Quantum Dots Applications · Graphene research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Functional Nanosystems, Istituto Italiano di Tecnologia (IIT), via Morego 30, 16163 Genova, Italy

Department of Mechanical Engineering, Columbia University, New York, New York 10027, USA

Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy

Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany

Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany

Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co. Ltd, Suwon, 16678, Republic of Korea

Funding

H2020 Future and Emerging Technologies · H2020 European Research Council · HORIZON EUROPE Marie Sklodowska-Curie Actions

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