TY - JOUR
T1 - A new pyridinium-substituted tetraphenylethylene aggregation induced emission composites for rare-earth free white light displays
AU - Amador, Eric
AU - Belev, George
AU - Kalapala, Akhil R.
AU - Mohapatra, Jeotikanta
AU - Wei, Yanling
AU - Pandey, Nil
AU - Sammynaiken, Ramaswami
AU - Liu, J. Ping
AU - Zhou, Weidong
AU - Chen, Wei
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/4
Y1 - 2023/4
N2 - In this work, we study the quantum efficiency and practicality of using a polymer infused with 1,4-bis(5-phenyl-2-oxazolyl) benzene (POPOP) and a newly synthesized aggregation induced luminophore (TPEPy-PF6) for the fabrication of light emitting diodes. By placing the polymer on a 365 nm chip we show that it is possible to get a white light-emitting diodes (LEDs) with an internal quantum efficiency of 53.33%. The coupling interactions among the components in the nanocomposites were investigated, however, Förster Resonance Energy Transfer (FRET) was not observed between POPOP and TPEPy-PF6. A Förster radius of 28 Å under 365 nm excitation wavelength was calculated, which proves the effective energy transfer from POPOP to TPEPy-PF6 would be difficult due to an extremely short Förster radius. The absence of FRET makes it easy to adjust the concentration of the two luminophores to obtain optimized chromaticity for LED lighting and displays applications.
AB - In this work, we study the quantum efficiency and practicality of using a polymer infused with 1,4-bis(5-phenyl-2-oxazolyl) benzene (POPOP) and a newly synthesized aggregation induced luminophore (TPEPy-PF6) for the fabrication of light emitting diodes. By placing the polymer on a 365 nm chip we show that it is possible to get a white light-emitting diodes (LEDs) with an internal quantum efficiency of 53.33%. The coupling interactions among the components in the nanocomposites were investigated, however, Förster Resonance Energy Transfer (FRET) was not observed between POPOP and TPEPy-PF6. A Förster radius of 28 Å under 365 nm excitation wavelength was calculated, which proves the effective energy transfer from POPOP to TPEPy-PF6 would be difficult due to an extremely short Förster radius. The absence of FRET makes it easy to adjust the concentration of the two luminophores to obtain optimized chromaticity for LED lighting and displays applications.
KW - 1,4-bis(5-phenyl-2-oxazolyl) benzene (POPOP)
KW - Aggregation induced luminophore
KW - Förster resonance energy transfer
KW - Rare earth free
KW - White light-emitting diodes
UR - http://www.scopus.com/inward/record.url?scp=85150183565&partnerID=8YFLogxK
U2 - 10.1016/j.mtphys.2023.101036
DO - 10.1016/j.mtphys.2023.101036
M3 - Article
AN - SCOPUS:85150183565
SN - 2542-5293
VL - 33
JO - Materials Today Physics
JF - Materials Today Physics
M1 - 101036
ER -