Open AccessElectroluminescent energy transfer of hybrid quantum dotsdevice
Author(s) -
Yan He,
Zheng Xu,
Suling Zhao,
Zhimin Liu,
Song Gao,
Xurong Xu
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.177301
Subject(s) - electroluminescence , materials science , optoelectronics , quantum dot , energy transfer , pedot:pss , luminance , light emitting diode , energy (signal processing) , optics , engineering physics , nanotechnology , physics , layer (electronics) , quantum mechanics
The hybrid quantum dot (QD) electroluminescent devices are fabricated by mixing every two kinds of QDs in the red, green, blue three types of QDs in a ratio 1:1, which are based on the structure of ITO/PEDOT:PSS/QDs/Al. In the systematical investigation of the electroluminescent spectrum, when the voltage increases, we find that the luminance intensity of the controlling devices continues to grow, while the hybrid QD devices first increase then decrease, showing that there is an energy transfer in the hybrid QD devices. And we also obtain the relationships among the energy transfer efficiency, the critical energy transfer distance, the donor-acceptor distance, and the electric field.