Solvent-free, direct printing of organic semiconductors in atmosphere

被引：18

作者：

Biswas, Shaurjo ^{[1
]}

Pipe, Kevin P. ^{[1
]}

Shtein, Max ^{[1
]}

机构：

[1] Univ Michigan, Ann Arbor, MI 48109 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 26期

基金：

美国国家科学基金会;

关键词：

electroluminescence; inert gases; organic semiconductors; printing; surface treatment; LIGHT-EMITTING DEVICES; VAPOR-PHASE DEPOSITION; MASK-FREE; DIODES; TRANSPORT; GROWTH;

D O I：

10.1063/1.3455840

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Additive, solvent-free printing of molecular organic semiconductors in ambient atmosphere is demonstrated, by evaporating organic source material into nitrogen carrier gas, collimating and impinging it onto a substrate where the organic molecules condense. A surrounding annular guard flow focuses the primary jet and shields it from contact with the ambient oxygen and moisture, enabling device-quality deposits. As an example, electroluminescence efficiency of organic light emitting devices (OLEDS) with emissive layers printed in air is shown to increase with guard flow rate, attaining parity with all-vacuum thermally evaporated OLEDs. (C) 2010 American Institute of Physics. [doi:10.1063/1.3455840]

引用

页数：3

共 29 条

[1] Direct vapor jet printing of three color segment organic light emitting devices for white light illumination [J].