Influência de diferentes solventes utilizados na deposição de filme de poli(9-vinilcarbazol) em dispositivos OLEDs

Química Nova

Emerson Roberto Santos²  Shu Hui Wang²  Fabio Conte Correia²  Ivan Rodrigues Costa¹  Victor Sonnenberg¹  Elvo Calixto Burini Junior¹  Roberto Koji Onmori¹ 

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

关键词: organic solvent;    PVK;    OLED;   

DOI  :  10.1590/S0100-40422014000100001

来源: SciELO

【 摘 要 】

This work studies the influence of the film deposition process on light emission performance and on threshold voltage of OLEDs, with architecture glass/ITO/PEDOT:PSS/PVK/Alq3/Al. The commercial PVK was dissolved in different solvents such as: chloroform, tetrahydrofuran, 1,2,4-trichlorobenzene and trimethylpentane. OLEDs were characterized by current-voltage and revealed a significant influence of the solvents, although all devices emitted green electroluminescence. A difference in threshold voltage up to 10 V was observed among OLEDs prepared from different solvents. The 1,2,4-trichlorobenzene showed best performance, presenting lowest treshold voltage (≈ 6 V), followed by tetrahydrofuran (≈ 8 V), trimethylpentane (≈ 14 V) and chloroform (≈ 16 V).

【 授权许可】

CC BY-NC   
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