White light emission from a polymer bilayer by incomplete cascade energy transfer

Jong Hyeok Park; O. Ok Park; Jai Kyeong Kim; Jae Woong Yu; Young Chul Kim

doi:10.1016/j.cap.2005.04.011

White light emission from a polymer bilayer by incomplete cascade energy transfer

Jong Hyeok Park, O. Ok Park, Jai Kyeong Kim, Jae Woong Yu, Young Chul Kim

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

White light emission was obtained from a light-emitting diodes (LEDs) prepared from an immiscible polymer blend consisting of poly(9,9′-dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (PDHFPPV) and poly(2-methoxy-5-(2′-ethy-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV). An inefficient energy transfer between PDHFPPV and MEH-PPV was observed because the blends are partially miscible. More importantly, because the order of bandgap energy is PVK > PDHFPPV > MEH-PPV we observed pure and strong white emission from this PLEDs, which results from the efficient Förster-type energy transfer from PVK to PDHFPPV and the partial energy transfer from PDHFPPV to MEH-PPV. The ITO/(PVK/immiscible blend)/Li:Al devices showed more enhanced white-light output compared with that of the ITO/(immiscible blend)/Li:Al device.

Original language	English
Pages (from-to)	640-643
Number of pages	4
Journal	Current Applied Physics
Volume	6
Issue number	4
DOIs	https://doi.org/10.1016/j.cap.2005.04.011
Publication status	Published - 2006 Jul

Bibliographical note

Funding Information:
This research was supported by a grant(code #: 04K1501-01210) from “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Programs” of the Ministry of Science and Technology, Korea.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Physics and Astronomy(all)

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10.1016/j.cap.2005.04.011

Cite this

@article{9a1883cf5e5541ee96a56b9d49ca1ae6,

title = "White light emission from a polymer bilayer by incomplete cascade energy transfer",

abstract = "White light emission was obtained from a light-emitting diodes (LEDs) prepared from an immiscible polymer blend consisting of poly(9,9′-dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (PDHFPPV) and poly(2-methoxy-5-(2′-ethy-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV). An inefficient energy transfer between PDHFPPV and MEH-PPV was observed because the blends are partially miscible. More importantly, because the order of bandgap energy is PVK > PDHFPPV > MEH-PPV we observed pure and strong white emission from this PLEDs, which results from the efficient F{\"o}rster-type energy transfer from PVK to PDHFPPV and the partial energy transfer from PDHFPPV to MEH-PPV. The ITO/(PVK/immiscible blend)/Li:Al devices showed more enhanced white-light output compared with that of the ITO/(immiscible blend)/Li:Al device.",

author = "Park, {Jong Hyeok} and Park, {O. Ok} and Kim, {Jai Kyeong} and Yu, {Jae Woong} and Kim, {Young Chul}",

note = "Funding Information: This research was supported by a grant(code #: 04K1501-01210) from “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Programs” of the Ministry of Science and Technology, Korea.",

year = "2006",

month = jul,

doi = "10.1016/j.cap.2005.04.011",

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AU - Park, Jong Hyeok

AU - Park, O. Ok

AU - Kim, Jai Kyeong

AU - Yu, Jae Woong

AU - Kim, Young Chul

N1 - Funding Information: This research was supported by a grant(code #: 04K1501-01210) from “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Programs” of the Ministry of Science and Technology, Korea.

PY - 2006/7

Y1 - 2006/7

N2 - White light emission was obtained from a light-emitting diodes (LEDs) prepared from an immiscible polymer blend consisting of poly(9,9′-dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (PDHFPPV) and poly(2-methoxy-5-(2′-ethy-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV). An inefficient energy transfer between PDHFPPV and MEH-PPV was observed because the blends are partially miscible. More importantly, because the order of bandgap energy is PVK > PDHFPPV > MEH-PPV we observed pure and strong white emission from this PLEDs, which results from the efficient Förster-type energy transfer from PVK to PDHFPPV and the partial energy transfer from PDHFPPV to MEH-PPV. The ITO/(PVK/immiscible blend)/Li:Al devices showed more enhanced white-light output compared with that of the ITO/(immiscible blend)/Li:Al device.

AB - White light emission was obtained from a light-emitting diodes (LEDs) prepared from an immiscible polymer blend consisting of poly(9,9′-dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (PDHFPPV) and poly(2-methoxy-5-(2′-ethy-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV). An inefficient energy transfer between PDHFPPV and MEH-PPV was observed because the blends are partially miscible. More importantly, because the order of bandgap energy is PVK > PDHFPPV > MEH-PPV we observed pure and strong white emission from this PLEDs, which results from the efficient Förster-type energy transfer from PVK to PDHFPPV and the partial energy transfer from PDHFPPV to MEH-PPV. The ITO/(PVK/immiscible blend)/Li:Al devices showed more enhanced white-light output compared with that of the ITO/(immiscible blend)/Li:Al device.

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White light emission from a polymer bilayer by incomplete cascade energy transfer

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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