Suppressing thermal quenching of lead halide perovskite nanocrystals by constructing a wide-bandgap surface layer for achieving thermally stable white light-emitting diodes
Qinggang Zhang, Mengda He, Qun Wan, Weilin Zheng, Mingming Liu, Congyang Zhang, Xinrong Liao, Wenji Zhan, Long Kong, Xiaojun Guo, Liang Li
Abstract
nanocrystals, we achieved temperature-stable white LED devices with a stable electroluminescence spectrum, color gamut and color coordinates in thermal stress tests (up to 373 K).
Topics & Concepts
Materials sciencePassivationPerovskite (structure)ElectroluminescenceLight-emitting diodeOptoelectronicsNanocrystalPhotoluminescenceHalideDiodeQuenching (fluorescence)Band gapLayer (electronics)NanotechnologyChemical engineeringOpticsInorganic chemistryChemistryFluorescenceEngineeringPhysicsPerovskite Materials and ApplicationsLuminescence Properties of Advanced MaterialsQuantum Dots Synthesis And Properties