Máscaras mecânicas de sombra por eletrocorrosão para dispositivos eletro-ópticos

Shadow masks are used in manufacturing processes for electro-optic devices to transfer patterns with different shapes and dimensions. For fabrication of organic based devices, shadow masks should be made of materials stable against organic solvents, high temperature, and robust, remaining unchanged...

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Bibliographic Details
Published in:Química Nova 2014, Vol.37 (1), p.134-137
Main Authors: Pereira, Iraci da Anunciação, Nogueira, Viviane Carvalho, Silva, Michele Odnicki da, Hamanaka, Marcos Henrique Mamoru Otsuka, Peressinotto, Valdirene Sullas Teixeira, Von Zuben, Elaine Fernanda Zen Ávila, Santos, Thebano Emílio de Almeida
Format: Article
Language:English
Subjects:
electro-optic devices
electrochemical corrosion
shadow mask
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Summary:Shadow masks are used in manufacturing processes for electro-optic devices to transfer patterns with different shapes and dimensions. For fabrication of organic based devices, shadow masks should be made of materials stable against organic solvents, high temperature, and robust, remaining unchanged after multiple cycles of use and fixation. Thus, stainless steel is suitable for shadow masks. A simple, cheap and quick method of obtaining shadow masks by electrochemical corrosion of stainless steel is reported. The shadow mask was used to evaporate cathode material to obtain an organic light emitting diode with active area of 9 mm². This device exhibited a turn-on voltage of 5 V and luminance of 14 cd/m².
ISSN:0100-4042
1678-7064
DOI:10.1590/S0100-40422014000100022