ReviewSmall science2026
Future Outlook Toward Heavy-Metal-Free Metal Chalcogenide Nanocrystals for Optoelectronic Applications.
Review in Small science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Colloidal nanocrystals (NCs) represent a transformative class of materials for next-generation optoelectronic devices, including photodetectors (PDs), photovoltaics (PVs), catalysis, and light-emitting diodes (LEDs). Historically, research in this field has been dominated by toxic heavy-metal-based systems (Cd, Pb, Hg), but it is now undergoing a critical shift toward sustainability, driven by health concerns and RoHS regulations. This review provides a comprehensive overview of heavy-metal-free (HMF) chalcogenide NCs, including binary, ternary, and multinary systems. We analyze the fundamental principles governing their performance, specifically size-dependent quantum confinement and compositional tuning that allow these "green" alternatives to achieve photoluminescence quantum yields exceeding 70%-90% and power conversion efficiencies of 8%-12%. This review further explores the unique structure-property relationships of HMF chalcogenide NCs, highlighting their superior biocompatibility, low toxicity profiles, and defect-tolerant electronic structures. Diverse applications are evaluated, ranging from broadband infrared photodetection to high-purity color emission for QLEDs. Special emphasis is placed on the challenges of surface engineering and ligand exchange, focusing on the transition from time-consuming layer-by-layer processing to efficient one-step solution-phase strategies. Finally, future research directions are outlined, including mitigation of ions in HMF chalcogenide NCs and development of self-powered sensing platforms for the Internet of Things (IoT) and wearable electronics.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.