2024年10月23日 · The contributions of Auger recombination, electric field-induced quenching, and electron leakage to the efficiency roll-off of QLEDs are quantified using electrically pumped transient absorption spec...

2025年1月16日 · The synthesized CdZnSe-based QDs reveal a decreased ground-state band splitting, shallow valence band maximum, and improved quasi-Fermi level splitting, which effectively flatten the energy ...

2021年8月6日 · From a device perspective, colloidal QD manufacturing must advance to translate from laboratory-scale to large-area applications such as roll-to-roll and inkjet printing. Photocatalysis, in which light is used to drive chemical transformations, is an emerging field in which QDs are of interest.

2024年10月29日 · Electrically driven self-emissive quantum dot light-emitting diodes (QLEDs) offer the advantages of high contrast, high color saturation and simple solution processability, making them the ultimate target for commercialization of QD-based displays.

2024年5月2日 · ZnSeTe quantum dots (QDs) have been employed as promising emitters for blue QD-based light-emitting diodes (QLEDs) due to their unique optoelectronic properties and environmental friendliness. However, such QLEDs usually suffer from serious efficiency roll-off primarily stemming from exciton loss at the inte Nanomaterials for a sustainable ...

2024年5月8日 · Here we report a chemical treatment to improve the long-range order of perovskite QD films: the diffraction intensity from the repeating QD units increases three-fold compared with that of controls.

2020年7月30日 · Motivated by the fascinating properties of both two-dimensional transition metal dichalcogenide quantum dots (TMD QDs) and Janus TMD monolayers, we theoretically explore the equilibrium structures of free-standing Janus MoSSe QDs in which atomic asymmetry of chalcogen is introduced.

2017年6月23日 · 半导体胶体量子点（QDs）由于具有荧光量子产率高、带隙窄、发光峰可调、易于合成制备等优点，在发光器件领域受到了极大的关注。 近年来，由于量子点合成方法、配体辅助工程、器件结构优化等方面的快速发展，量子点发光二极管（QD-LEDs）的性能得到了极大的提高。 近日， 上海科技大学宁志军教授（通讯作者） 等人在 National Science Review 上发表了题为 “Colloidal quantum-dots surface and device structure engineering for high-performance light …

2024年5月20日 · CsPbI 3 perovskite quantum dots (QDs) could achieve pure-red emission by reducing their size, but the increased exciton binding energy (E B) and surface defects for the small-sized QDs (SQDs) cause severe Auger and trap recombinations, thus worsening their electroluminescence (EL) performance.

2013年5月21日 · he comparison of quantum-dot (QD) electroluminescence and photoluminescence. We find that an electric-field-induced decrease in QD luminescence efficiency – and not charge leakage or QD charging (Auger recombination) – is responsible for the roll-off behavior, and use the quantum confined Stark eff.