White emission from a polymer blend light-emitting diode by incomplete cascade energy transfer

Cited 3 time in webofscience Cited 0 time in scopus
  • Hit : 502
  • Download : 2
White light emission was obtained from a polymer light-emitting diode (LED) made of a ternary polymer blend comprised of poly(9-vinylcarbazole) (PVK), poly(9,9'-dihexlyfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (CPDHFPV), and poly[2-methoxy-5-(2'-(ethyl-hexyloxy)-1,4-phenylenevinylene) (MEH-PPV) (19:1:1 by wt.). Incomplete cascade energy transfer was employed to obtain white emission from the polymer blend LED. Compatibility between PVK and CPDHFPV facilitated the Forster-type energy transfer from PVK to CPDHFPV. However, poor compatibility between CPDHFPV and MEH-PPV resulted in a partial energy transfer between the polymers causing the blend to emit two colors simultaneously. Consequently, pure white color near CIE coordinate (0.33, 0.33) could be obtained with a low sensitivity to the drive voltage.
Publisher
TAYLOR FRANCIS LTD
Issue Date
2001-12
Language
English
Article Type
Article; Proceedings Paper
Citation

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.371, pp.435 - 438

ISSN
1058-725X
URI
http://hdl.handle.net/10203/5015
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 3 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0