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Vol. 101, Issue 2, February 2009, pp.22-30





Aquaregia and Oxygen Plasma Treatments on Fluorinated Tin Oxide for Assembly of PLEDs Devices Using OC1C10-PPV as Emissive Polymer


*Emerson Roberto SANTOS, **Elvo Calixto Burini JUNIOR,
*Fernando Josepetti FONSECA

*Escola Politécnica da Universidade de São Paulo, Departamento de Sistemas Eletrônicos,

05508-010, Cidade Universitária, São Paulo, SP, Brazil

**Instituto de Eletrotécnica e Energia da Universidade de São Paulo,

05508-010, Cidade Universitária, São Paulo, SP, Brazil

Tel.: ++55 (11) 3091-5302, fax: +55 (11) 3091-5585

E-mail: emerson@lme.usp.br


Received: 25 January 2008   /Accepted: 20 February 2009   /Published: 28 February 2009


Abstract: In this work were carried out treatments with oxygen plasma and aquaregia on fluorinated tin oxide (FTO) films varying the treatment times. After treatments, the samples were analyzed by techniques measurements: sheet resistance, thickness, Hall effect, transmittance and superficial roughness. Devices using FTO/PEDOT:PSS/OC1C10-PPV/Al were assembled. In this experiment some variations were observed by sheet resistance and thickness and Hall effect measurements indicated most elevated carriers concentration and resistivity for aquaregia than that oxygen plasma. The roughness was elevated for the first minutes with treatment by aquaregia too. In the I-V curves the aquaregia devices presented the lowest threshold voltage for 30 minutes and devices treated by oxygen plasma presented a behavior most resistivity different of typical curves for PLEDs devices.


Keywords: FTO, Aquaregia, Oxygen plasma, OC1C10-PPV


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