ArticleNature communications2021
Phonon-assisted up-conversion photoluminescence of quantum dots.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Engineering Polarons for Circumventing Energy Gap Law: Nd-doped CdTe Quantum Dots With High-efficiency Emission at 1730 nm for NIR-IIb/c Bioimaging.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Heat-assisted hot-hole transfer increases the surface-enhanced Raman activity of Au-TiONature communications · 2026Article
- Quantum coupling in colloidal homodimers of epitaxially attached CdSe@CdS dot@platelets probed on single-particle level.Nature communications · 2026Article
- Giant single-step upconversion via sub-35-fs phonon dynamics in the nonlinear optical regime.Science advances · 2025Article
- Efficient up-conversion in CsPbBrNature communications · 2025Article
- Nonadiabatic Field: A Conceptually Novel Approach for Nonadiabatic Quantum Molecular Dynamics.Journal of chemical theory and computation · 2025Review
- Modeling Temperature-Dependent Photoluminescence Dynamics of Colloidal CdS Quantum Dots Using Long Short-Term Memory (LSTM) Networks.Materials (Basel, Switzerland) · 2024Article
- Nonadiabatic Field with Triangle Window Functions on Quantum Phase Space.The journal of physical chemistry letters · 2024Article
- A 0D hybrid lead-free halide with near-unity photoluminescence quantum yield toward multifunctional optoelectronic applications.Chemical science · 2024Article
- Uncovering the mechanisms of efficient upconversion in two-dimensional perovskites with anti-Stokes shift up to 220 meV.Science advances · 2023Article
- Article
- Electron-phonon coupling-assisted universal red luminescence of o-phenylenediamine-based carbon dots.Light, science & applications · 2022Article
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Authors and funding
7 authors.
Funding
Abstract
Phonon-assisted up-conversion photoluminescence can boost energy of an emission photon to be higher than that of the excitation photon by absorbing vibration energy (or phonons) of the emitter. Here, up-conversion photoluminescence power-conversion efficiency (power ratio between the emission and excitation photons) for CdSe/CdS core/shell quantum dots is observed to be beyond unity. Instead of commonly known defect-assisted up-conversion photoluminescence for colloidal quantum dots, temperature-dependent measurements and single-dot spectroscopy reveal the up-conversion photoluminescence and conventional down-conversion photoluminescence share the same electron-phonon coupled electronic states. Ultrafast spectroscopy results imply the thermalized excitons for up-conversion photoluminescence form within 200 fs, which is 100,000 times faster than the radiative recombination rate of the exciton. Results suggest that colloidal quantum dots can be exploited as efficient, stable, and cost-effective emitters for up-conversion photoluminescence in various applications.
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