Deep-blue efficient OLED based on NPB with little efficiency roll-off under high current density

作者：Liu, Jian^*

来源：Applied Physics A, 2017, 123(3): 191.

DOI：10.1007/s00339-017-0840-6

• LIGHT-EMITTING-DIODES
• ELECTROPLEX EMISSION
• COMPLEX
• HOST
• ELECTROLUMINESCENCE
• INTERFACE
• COLOR

NPB usually is used as a hole-transport layer in OLED. In fact, it is a standard pure blue-emission material. However, its light-emitting efficiency in OLED is low due to emissive nature of organic material. Herein, a deep-blue OLDE based on NPB was fabricated. The light-emitting efficiency of the device demonstrates a moderate value, and efficiency roll-off is little under high current density. The device demonstrates that the electroplex's emission decreases with increasing electric field intensity.

• 出版日期2017-3
• 单位新余学院