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The burgeoning demand for commercializing self‐luminescing quantum dot (QD) light‐emitting diodes (LEDs) has stimulated extensive research into environmentally friendly and efficient QD materials. Hydrofluoric acid (HF) additive improves photoluminescence (PL) properties of blue‐emitting ZnSeTe QDs, ultimately reaching a remarkable quantum yield (QY) of 97% with an ultranarrow peak width of 14 nm...
Quantum Dots
In article number 2311719, Taehyung Kim, Dongho Kim, and their co‐workers from Yonsei University and SAIT investigate the impact of facet‐specific growth, induced by hydrofluoric acid (HF) treatment, on the crystal structure and spectroscopic properties of blue‐emitting ZnSeTe quantum dots. The study unveils the intricate relationship between lattice structure, defect density, and photoluminescence...
Isotropic InP/ZnSe/ZnS quantum dots (QDs) are prepared at a high reaction temperature, which facilitates ZnSe shell growth on random facets of the InP core. Fast crystal growth enables stacking faults elimination, which induces anisotropic growth, and as a result, improves the photoluminescence (PL) quantum yield by nearly 20%. Herein, the effect of the QD morphology on photophysical properties is...
Semiconductor quantum dots (QDs) are spotlighted as a key type of emissive material for the next generation of light‐emitting diodes (LEDs). This work presents the investigation of the electrochemical charging effect on the absorption and emission of the InP/ZnSe/ZnS QDs with different mid‐shell thicknesses. The excitonic peak is gradually bleached during electrochemical charging, which is caused...
Summary form only given. Recently, the vibrational states of quantum dots have been intensively studied as well as the optical properties due to carrier confinement. In this report, a modified expression is proposed, which can explain the observed size- and glass-dependent phonon energies of CdSe quantum dots in B/sub 2/O/sub 3/-SiO/sub 2/ and SiO/sub 2/ glasses and the previously reported ones in...
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