Exciton diffusion exceeding 1?μm: run, exciton, run!

• 作 者: Ibrahim Dursun Burak Guzelturk
• 机 构: Department of Electrical Engineering,The Pennsylvania State University,University Park,PA 16802,USA
• 出 处: 光：科学与应用（英文版）
• 发表日期: 2021年3期

Exciton diffusion lengths reaching the micrometer length scale have long been desired in solution-processedsemiconductors but have remained unattainable using conventional materials to date. Now halide perovskite nanocrystal films show unprecedented exciton migration with diffusion lengths approaching 1 μm owing to the efficient combination of radiative and nonradiative energy transfer.