Quimica nova | |
Influence of different solvents used in film deposition of poly(9-vinylcarbazole) in OLED devices | |
Costa, Ivan Rodrigues1  Sonnenberg, Victor1  Burini Junior, Elvo Calixto2  Onmori, Roberto Koji2  Correia, Fabio Conte2  Santos, Emerson Roberto2  Wang, Shu Hui2  | |
[1] Faculdade de Tecnologia de São Paulo, São Paulo, Brasil;Universidade de São Paulo, São Paulo, Brasil | |
关键词: organic solvent; PVK; OLED.; | |
DOI : 10.1590/S0100-40422014000100001 | |
学科分类:化学(综合) | |
来源: Sociedade Brasileira de Quimica | |
【 摘 要 】
This work studiesthe influence of the film deposition process on light emission performance andon 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 characterizedby current-voltage and revealed a significant influence of the solvents, althoughall devices emitted green electroluminescence. A difference in threshold voltageup to 10 V was observed among OLEDs prepared from different solvents. The 1,2,4-trichlorobenzeneshowed 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
【 预 览 】
Files | Size | Format | View |
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RO201902018912962ZK.pdf | 567KB | download |