Highly efficient organic light-emitting diodes with a quantum dot interfacial layer.
Advanced organic light-emitting diodes (OLEDs), based on a multiple structure, were achieved in combination with a quantum dot (QD) interfacial layer. The authors used core/shell CdSe/ZnS QDs passivated with trioctylphosphine oxide (TOPO) and TOPO-free QDs as interlayers. Multiple-structure OLEDs (MOLEDs) with TOPO-free QDs showed higher device efficiency because of a well-defined interfacial monolayer formation. Additionally, the three-unit MOLED showed high performance for device efficiency with double-structured QD interfacial layers due to the enhanced charge balance and recombination probability.
Ryu
Seung Yoon
SY
AMOLED Business Team, Samsung SDI, Co., Ltd, Yongin-City, Gyeonggi-Do, Korea. justie74@yonsei.ac.kr
Hwang
Byoung Har
BH
Park
Ki Wan
KW
Hwang
Hyeon Seok
HS
Sung
Jin Woo
JW
Baik
Hong Koo
HK
Lee
Chang Ho
CH
Song
Seung Yong
SY
Lee
Jun Yeob
JY