Química Nova | |
Influence of different solvents used in film deposition of poly(9-vinylcarbazole) in OLED devices | |
Burini Junior, Elvo Calixto1  Faculdade de Tecnologia de São Paulo, São Paulo, Brasil1  Costa, Ivan Rodrigues1  Universidade de São Paulo, São Paulo, Brasil1  Onmori, Roberto Koji1  Correia, Fabio Conte1  Sonnenberg, Victor1  Santos, Emerson Roberto1  Wang, Shu Hui1  | |
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 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】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912050596143ZK.pdf | 567KB | download |