Transparent thermally stable poly(etherimide) film as flexible substrate for OLEDs

被引:14
作者
Calil, V. L. [1 ,2 ]
Legnani, C. [2 ]
Moreira, G. F. [2 ]
Vilani, C. [2 ]
Teixeira, K. C. [1 ,2 ]
Quirino, W. G. [2 ]
Machado, R. [2 ]
Achete, C. A. [2 ]
Cremona, M. [1 ,2 ]
机构
[1] PUC Rio, Dept Fis, LOEM, Rio De Janeiro, Brazil
[2] Dimat, Div Mat Metrol, Duque De Caxias, RJ, Brazil
关键词
ITO; Flexible substrate; Flexible organics electronics; Poly(etherimide); Thermal stable; INDIUM-TIN-OXIDE; FLAT-PANEL DISPLAYS; ITO THIN-FILMS; TEMPERATURE; POLYETHERIMIDE; TRANSISTORS; DEPOSITION; DEVICES; BARRIER; POWER;
D O I
10.1016/j.tsf.2009.09.055
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this work, ITO thin films were deposited onto poly(etherimide) (PEI) substrates at room temperature using r.f. magnetron sputtering and successively they were annealed in the 423-523 K (150-250 degrees C) temperature range. PEI/ITO substrates were structurally. optically and electrically characterized in order to verify the quality of the deposited ITO films and the PEI thermal stability during the ITO annealing process. A transmittance of about 80% was measured in the visible range. The best electrical properties achieved were: 3.04 x 10(-4) Omega cm, 12.07 x 10(21)cm(2)/V.s, 16.8 x 10(21) cm(-3), for resistivity, carrier concentration and mobility, respectively. Small molecule Flexible Organic Light Emitting Diodes (FOLED) were then fabricated and characterized onto ITO functionalized PEI substrates. These preliminary results show clearly that PEI can be successfully used as substrate in flexible optoelectronic devices either operating in high temperature or when the process needs high temperatures. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1419 / 1423
页数:5
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