Transient electroluminescence from PPV under strong voltage pulses

V. Savvate'ev, R. Pogreb, D. Davidov, H. Chayet, Ronny Neumann, Y. Avny

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have studied the transient electroluminescence (EL) from poly(phenylenevinylene), PPV, as a function of electric field under strong electric pulses up to fields of E ≈ 109 V/m with emphasis on (a) the time delay, τ, between the electric pulse and the onset of the EL emission pulse and (b) the EL intensity as a function of the field. A monotonic decrease of τ with increasing E is explained by an increase of the carriers mobility according to Frenkel-Poole model. The EL intensity at high fields is proportional to E3 suggesting that the contacts at the polymer-metal electrode interfaces are practically ohmic. We demonstrate significantly improved brightness, peak power and lifetimes for polymer-based light emitting diodes working under such a pulsed mode.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsJ.R. Reynolds, A.K.Y. Jen, M.F. Rubner, L.Y. Chiang, L.R. Dalton
PublisherMRS
Pages15-20
Number of pages6
Volume488
Publication statusPublished - 1997
EventProceedings of the 1997 MRS Fall Meeting - Boston, MA, USA
Duration: Dec 1 1997Dec 5 1997

Other

OtherProceedings of the 1997 MRS Fall Meeting
CityBoston, MA, USA
Period12/1/9712/5/97

Fingerprint

Electroluminescence
Electric potential
Polymers
Carrier mobility
Light emitting diodes
Luminance
Time delay
Metals
Electric fields
Electrodes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Savvate'ev, V., Pogreb, R., Davidov, D., Chayet, H., Neumann, R., & Avny, Y. (1997). Transient electroluminescence from PPV under strong voltage pulses. In J. R. Reynolds, A. K. Y. Jen, M. F. Rubner, L. Y. Chiang, & L. R. Dalton (Eds.), Materials Research Society Symposium - Proceedings (Vol. 488, pp. 15-20). MRS.

Transient electroluminescence from PPV under strong voltage pulses. / Savvate'ev, V.; Pogreb, R.; Davidov, D.; Chayet, H.; Neumann, Ronny; Avny, Y.

Materials Research Society Symposium - Proceedings. ed. / J.R. Reynolds; A.K.Y. Jen; M.F. Rubner; L.Y. Chiang; L.R. Dalton. Vol. 488 MRS, 1997. p. 15-20.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Savvate'ev, V, Pogreb, R, Davidov, D, Chayet, H, Neumann, R & Avny, Y 1997, Transient electroluminescence from PPV under strong voltage pulses. in JR Reynolds, AKY Jen, MF Rubner, LY Chiang & LR Dalton (eds), Materials Research Society Symposium - Proceedings. vol. 488, MRS, pp. 15-20, Proceedings of the 1997 MRS Fall Meeting, Boston, MA, USA, 12/1/97.
Savvate'ev V, Pogreb R, Davidov D, Chayet H, Neumann R, Avny Y. Transient electroluminescence from PPV under strong voltage pulses. In Reynolds JR, Jen AKY, Rubner MF, Chiang LY, Dalton LR, editors, Materials Research Society Symposium - Proceedings. Vol. 488. MRS. 1997. p. 15-20
Savvate'ev, V. ; Pogreb, R. ; Davidov, D. ; Chayet, H. ; Neumann, Ronny ; Avny, Y. / Transient electroluminescence from PPV under strong voltage pulses. Materials Research Society Symposium - Proceedings. editor / J.R. Reynolds ; A.K.Y. Jen ; M.F. Rubner ; L.Y. Chiang ; L.R. Dalton. Vol. 488 MRS, 1997. pp. 15-20
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