Analytical Characterization of Quantum Dot Enhancement Films in Commercial Displays
Year: 2026
Type: article
Abstract: ABSTRACT Colloidal quantum dots (QDs) have become firmly established in the display market, yet many relevant QD compositions contain heavy metals whose concentrations are regulated in consumer products. Accurate characterization of hazardous metal content in QD displays is therefore essential but challenging due to their complex multilayer structure. Here, a commercially available QD display film is analyzed using complementary techniques, with laser ablation inductively coupled plasma mass spectrometry (LA‐ICP‐MS) as the central tool. The film contains CdSe‐based core‐shell QDs as the green component and, for the first time in a commercial product, lead halide perovskite (LHP) QDs as the red component. Principal component analysis combined with k‐means clustering enabled the extraction of bead‐like pixel populations corresponding to CdSe and LHP QDs, with classification accuracies of 84% and 95%, respectively. This approach establishes a pathway toward advanced analytical strategies for assessing the regulatory compliance of commercial QD displays.
Source: Helvetica Chimica Acta
DOI: 10.1002/hlca.70075
Language: English
Subfield: Analytical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,030
Awards: G1758442481, Superluminescent LIGHT Sources based on gradient composition WAVEguides of mixed halide perovskites (SLIGHT-WAVE), Recherches conjointes entre le Centre de Recherches en Phy- sique des Plasmas et des Universités américaines dans le do- maine de la Physique des Plasmas., G993971353
OpenAlex ID: W7160012635