Ontology highlight
ABSTRACT:
SUBMITTER: Chen S
PROVIDER: S-EPMC6377672 | biostudies-literature | 2019 Feb
REPOSITORIES: biostudies-literature
Chen Song S Cao Weiran W Liu Taili T Tsang Sai-Wing SW Yang Yixing Y Yan Xiaolin X Qian Lei L
Nature communications 20190215 1
The operating lifetime of blue quantum-dot light-emitting diodes (QLED) is currently a short slab for this emerging display technology. To pinpoint the origin of device degradation, here we apply multiple techniques to monitor the electric-field distribution and space-charge accumulation across the multilayered structure before and after lifetime tests. Evident by charge-modulated electro-absorption and capacitance-voltage characteristics, the excited electrons in blue quantum dots (QD) are pron ...[more]