Accelerated Photostability Studies of Colloidal Quantum Dots
نویسندگان
چکیده
Photostability of colloidal quantum dots (QDs) is one the major criteria determining their long-term applicability in energy and chemical technologies. Yet, photostability studies QDs are extremely sensitive to experimental conditions, lack a detailed mechanistic understanding, time-, material-, labor-intensive. Herein, an automated microfluidic platform for accelerated introduced, 3.5× faster 100× more material efficient than conventional flask-based studies. The developed strategy provides real-time situ access optical properties throughout experiments. Specifically, material-efficient used study mechanism kinetics CdSe QDs' photodegradation. suggest that generation singlet oxygen via triplet transfer from can initiate photo-oxidation QDs. Furthermore, presence at least additional photodegradation pathway parallel unveiled. systematic experiments reveal how incident photon flux starting average diameters affect rates. This work sheds light on complex multifaceted phenomena illustrates unique characteristics strategies improve accelerate
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ژورنال
عنوان ژورنال: Solar RRL
سال: 2023
ISSN: ['2367-198X']
DOI: https://doi.org/10.1002/solr.202201119