Bicolor electroluminescent pixels from single active molecular material

Ilenia Viola; Claudia Piliego; Laura Favaretto; Giovanna Barbarella; Roberto Cingolani; Giuseppe Gigli

doi:10.1021/am9007227

Bicolor electroluminescent pixels from single active molecular material

ACS Appl Mater Interfaces. 2010 Feb;2(2):484-90. doi: 10.1021/am9007227.

Authors

Ilenia Viola¹, Claudia Piliego, Laura Favaretto, Giovanna Barbarella, Roberto Cingolani, Giuseppe Gigli

Affiliation

¹ National Nanotechnology Laboratory of INFM-CNR, Distretto tecnologico ISUFI, Via Arnesano, Lecce, Italy. ilenia.viola2unile.it

PMID: 20356195
DOI: 10.1021/am9007227

Abstract

We report on the fabrication of the first bicolor micropixelated OLED from a single molecular material using a single-step bottom up procedure. The implementation of a deposition technique, based on a spatial-switch and conformational-sensitive STD surface-tension-driven lithography, has allowed us to exploit the spontaneous supramolecular properties and the conformational flexibility of a conjugated thiophene-based material, 6-bis-(50-hexyl-[2, 20]bithiophen-5-yl)-3, 5-dimethyl-dithieno[3, 2-b; 20, 30-d]thiophene (DTT7Me). The existence of two regularly alternating emitting regions on a micrometer scale allows obtaining electroluminescent emission at two different wavelengths from a single material.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electrochemistry / instrumentation*
Equipment Design
Equipment Failure Analysis
Lighting / instrumentation*
Luminescent Measurements / instrumentation*
Materials Testing
Semiconductors*
Thiophenes / chemistry*

Substances

Thiophenes