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 language | English |
|---|---|
| Title of host publication | Materials Research Society Symposium - Proceedings |
| Editors | J.R. Reynolds, A.K.Y. Jen, M.F. Rubner, L.Y. Chiang, L.R. Dalton |
| Publisher | MRS |
| Pages | 15-20 |
| Number of pages | 6 |
| Volume | 488 |
| Publication status | Published - 1997 |
| Event | Proceedings of the 1997 MRS Fall Meeting - Boston, MA, USA Duration: Dec 1 1997 → Dec 5 1997 |
Other
| Other | Proceedings of the 1997 MRS Fall Meeting |
|---|---|
| City | Boston, MA, USA |
| Period | 12/1/97 → 12/5/97 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
Cite this
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 proceeding › Conference contribution
}
TY - GEN
T1 - Transient electroluminescence from PPV under strong voltage pulses
AU - Savvate'ev, V.
AU - Pogreb, R.
AU - Davidov, D.
AU - Chayet, H.
AU - Neumann, Ronny
AU - Avny, Y.
PY - 1997
Y1 - 1997
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0031387766&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031387766&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0031387766
VL - 488
SP - 15
EP - 20
BT - Materials Research Society Symposium - Proceedings
A2 - Reynolds, J.R.
A2 - Jen, A.K.Y.
A2 - Rubner, M.F.
A2 - Chiang, L.Y.
A2 - Dalton, L.R.
PB - MRS
ER -