Light-emitting diodes fabricated from small-size ZnO quantum dots

Seed/Catalyst-Free Growth of 2D And 3D Zno Nanostructures on Glass Substrate by Thermal Evaporation Method: Effects of Carrier Gas Flow Rate

“…In addition, ZnO nanostructure is low cost, high thermal stability, non-toxic, easily fabricated, high transmittance in the visible region [2]. ZnO nanostructures have been extensively used in different fields, such as environmental science [3], optoelectronics [4], catalysts [5], actuators and piezoelectric transducers [6], and solar cells [7]. ZnO nanostructures including zero-dimensional (0D) such as nanoparticles and quantum dot, one-dimensional (1D) such as nanowires, nanorods, and nanoneedles, twodimensional (2D) nanoribbons and nanoleaves, and three-dimensional (3D) such as tetrapods and spherical grains [8][9][10].…”

80‐3: Research on ZnO‐MgO QDs and its Application in QLED

“…[1] Nontoxic ZnO QDs with a tunable direct bandgap and large exciton binding energy of 60 meV at room temperature are very promising for solid-state LED applications. [2] The electroluminescence (EL) spectrum of the solution-processed nanocrystals ZnO revealed the presence of weak UV emission that increased slightly with the decrease of QD size. [3] This suppresses the visible light which is attributed to the defect emission of ZnO QD and promotes the UV light coming from the near band emission (NBE) when applied in the UV-LED.…”

Ag-Decorated Localized Surface Plasmon-Enhanced Ultraviolet Electroluminescence from ZnO Quantum Dot-Based/GaN Heterojunction Diodes by Optimizing MgO Interlayer Thickness

“…Therefore, it necessitates alternative approaches for developing QD-LEDs with the heavy-metal free composition. Nontoxic ZnO QDs with a tunable direct wide bandgap and a large exciton binding energy of 60 meV at room temperature are very promising for solid-state LED applications [15, 16]. However, the main issue, the lack of high-quality and stable p-type doing of ZnO due to the strong self-compensation effect of native point defects such as zinc interstitial or oxygen vacancy, still remained.…”