Reator de UV-Ozônio com lâmpada a vapor de mercúrio a alta pressão modificada para tratamento superficial de óxidos transparentes condutivos utilizados em dispositivos poliméricos eletroluminescentes

Química Nova

Emerson Roberto Santos²  Fábio Conte Correia²  Shu Hui Wang²  Pilar Hidalgo¹  Fernando Josepetti Fonseca¹  Elvo Calixto Burini Júnior¹  Adnei Melges De Andrade¹ 

[1] ,Universidade de São Paulo Escola Politécnica Departamento de Engenharia Metalúrgica e de MateriaisSão Paulo SP ,Brasil

关键词: UV-Ozone;    HID mercury vapor lamp;    transparent conductive oxide;   

DOI  :  10.1590/S0100-40422010000800027

来源: SciELO

【 摘 要 】

An UV-Ozone reactor was developed with an ignition tube extracted into HID mercury lamp used to irradiation on zinc oxide (ZnO) and fluorinated tin oxide (FTO) films for PLEDs devices. Different exposures times were used. In contact angle measurements revealed better results for ZnO and FTO by 15 and 5 min, respectively. In Diffuse Reflectance Infra-red Fourier Transformed (DRIFT) spectroscopy allowed the observation of water, hydrocarbon and carbon dioxide adsorbed on the untreated TCO surfaces. After the UV-Ozone treatment the contaminants were significantly reduced or eliminated and the PLEDs devices decreased threshold voltages in comparison with respectively untreated TCOs.

【 授权许可】

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