ArticleChemistry of materials : a publication of the American Chemical Society2019
Electrochemical Modulation of the Photophysics of Surface-Localized Trap States in Core/Shell/(Shell) Quantum Dot Films.
Article in Chemistry of materials : a publication of the American Chemical Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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
15 citing papers in PubMed, 55 citations in OpenAlex.
- Film treatment-driven evolution of caesium lead bromide nanocrystals into layered 3D/2D CsPbBrNanoscale advances · 2026Article
- Potential of Electrochemical Charge Injection for Quantum Dot Light-Emitting Devices.Chemistry of materials : a publication of the American Chemical Society · 2025Article
- Where Do the Electrons Go? Studying Loss Processes in the Electrochemical Charging of Semiconductor Nanomaterials.Chemistry of materials : a publication of the American Chemical Society · 2025Article
- Fluctuations in the Photoluminescence Excitation Spectra of Individual Semiconductor Nanocrystals.The journal of physical chemistry letters · 2024Article
- Cation Exchange and Spontaneous Crystal Repair Resulting in Ultrathin, Planar CdS Nanosheets.Chemistry of materials : a publication of the American Chemical Society · 2023Article
- Guilty as Charged: The Role of Undercoordinated Indium in Electron-Charged Indium Phosphide Quantum Dots.ACS nano · 2023Article
- Numerical Model to Simulate Electrochemical Charging of Nanocrystal Films.The journal of physical chemistry. C, Nanomaterials and interfaces · 2023Article
- Zero-Threshold Optical Gain in Electrochemically Doped Nanoplatelets and the Physics Behind It.ACS nano · 2022Article
- Effect of Ligands and Solvents on the Stability of Electron Charged CdSe Colloidal Quantum Dots.The journal of physical chemistry. C, Nanomaterials and interfaces · 2021Article
- Atomic Identification of Interfaces in Individual Core@shell Quantum Dots.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021Article
- Optical and Magneto-Optical Properties of Donor-Bound Excitons in Vacancy-Engineered Colloidal Nanocrystals.Nano letters · 2021Article
- Dynamic Formation of Metal-Based Traps in Photoexcited Colloidal Quantum Dots and Their Relevance for Photoluminescence.Chemistry of materials : a publication of the American Chemical Society · 2021Article
- Single Trap States in Single CdSe Nanoplatelets.ACS nano · 2021Article
- Article
- Emergence of Impurity-Doped Nanocrystal Light-Emitting Diodes.Nanomaterials (Basel, Switzerland) · 2020Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this work, we systematically study the spectroelectrochemical response of CdSe quantum dots (QDs), CdSe/CdS core/shell QDs with varying CdS shell thicknesses, and CdSe/CdS/ZnS core/shell/shell QDs in order to elucidate the influence of localized surface trap states on the optoelectronic properties. By correlating the differential absorbance and the photoluminescence upon electrochemically raising the Fermi level, we reveal that trap states near the conduction band (CB) edge give rise to nonradiative recombination pathways regardless of the CdS shell thickness, evidenced by quenching of the photoluminescence before the CB edge is populated with electrons. This points in the direction of shallow trap states localized on the CdS shell surface that give rise to nonradiative recombination pathways. We suggest that these shallow trap states reduce the quantum yield because of enhanced hole trapping when the Fermi level is raised electrochemically. We show that these shallow trap states are removed when additional wide band gap ZnS shells are grown around the CdSe/CdS core/shell QDs.
Identifiers
What OpenQuestion holds
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.