Layered organic film growth by substrate temperature tuning for efficiency-enhanced OLEDs

被引：14

作者：

Wantz, G

Dautel, OJ

Almairac, R

Hirsch, L

Serein-Spirau, F

Vignau, L

Lère-Porte, JP

Parneix, JP

Moreau, JJE

机构：

[1] Ecole Natl Super Chim & Phys Bordeaux, Lab PIOM, Federat Rech SyMe, CNRS FR2648, F-33607 Pessac, France

[2] Ecole Natl Super Chim & Phys Bordeaux, Lab IXL, Federat Rech SyMe, CNRS FR2648, F-33607 Pessac, France

[3] Ecole Natl Super Chim Montpellier, UMR Heterochim Mol & Macromol 5076, F-34296 Montpellier, France

[4] Univ Montpellier 2, LCVN, UMR 5587, F-34095 Montpellier 05, France

来源：

ORGANIC ELECTRONICS | 2006年 / 7卷 / 01期

关键词：

OLED; substrate temperature; organic vacuum deposition; imido-phenylene vinylene;

D O I：

10.1016/j.orgel.2005.11.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects on resultant organic light-emitting device of substrate temperature during the evaporation process of a light-emitting material are reported. Light-emitting diodes are based on a novel bis-imido-phenylene vinylene (ImPV) derivative as green-emitting molecule. It is reported that the substrate temperature has a great influence on the thin film morphology. Heating the substrate results in a more ordered film. Using this technique, molecules of ImPV self-organise in an even layered film with 1.7 nm-thick molecular layers. Devices based on heated substrates exhibit higher operating voltages but enhanced quantum and luminous efficiencies. (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：38 / 44

页数：7

共 24 条

[1] Excitons in organic molecular crystals [J].