Dual-functional quantum-dots light emitting diodes based on solution processable vanadium oxide hole injection layer.

ABSTRACT: Dual-functional quantum-dots light emitting diodes (QLEDs) have been fabricated using solution processable vanadium oxide (V₂O₅) hole injection layer to control the carrier transport behavior. The device shows selectable functionalities of photo-detecting and light-emitting behaviors according to the different operating voltage conditions. The device emitted a bright green light at the wavelength of 536 nm, and with the maximum luminance of 31,668 cd/m² in a forward bias of 8.6 V. Meanwhile, the device could operate as a photodetector in a reverse bias condition. The device was perfectly turned off in a reverse bias, while an increase of photocurrent was observed during the illumination of 520 nm wavelength light on the device. The interfacial electronic st

SUBMITTER: Kim TY 

PROVIDER: S-EPMC7814015 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature